+client

Reviewed-on: #8

ComputerHardwareStore/ComputerHardwareStore.sln

@@ -5,9 +5,17 @@ VisualStudioVersion = 17.7.34031.279
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerHardwareStore", "ComputerHardwareStore\ComputerHardwareStore.csproj", "{D5DDEE2B-A0C4-430B-B00E-452BA1AB3DDA}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerHardwareStoreDataModels", "ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj", "{48126915-C6D4-451C-BC88-39E3C50332B8}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreDataModels", "ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj", "{48126915-C6D4-451C-BC88-39E3C50332B8}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerHardwareStoreContracts", "ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj", "{5F394E21-2597-432B-AE73-BBAFD8D9F50E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreContracts", "ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj", "{5F394E21-2597-432B-AE73-BBAFD8D9F50E}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreBusinessLogic", "ComputerHardwareStoreBusinessLogic\ComputerHardwareStoreBusinessLogic.csproj", "{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreDatabaseImplement", "ComputerHardwareStoreDatabaseImplement\ComputerHardwareStoreDatabaseImplement.csproj", "{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreREST", "ComputerHardwareStoreREST\ComputerHardwareStoreREST.csproj", "{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VendorClient", "VendorClient\VendorClient.csproj", "{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,6 +35,22 @@ Global
 		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/BuildLogic.cs

@@ -0,0 +1,113 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class BuildLogic : IBuildLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IBuildStorage _buildStorage;
+
+        public BuildLogic(ILogger<BuildLogic> logger, IBuildStorage buildStorage)
+        {
+            _logger = logger;
+            _buildStorage = buildStorage;
+        }
+
+        public List<BuildViewModel>? ReadList(BuildSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Build. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ? _buildStorage.GetFullList() :
+                _buildStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Build return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Build. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public BuildViewModel? ReadElement(BuildSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Build. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _buildStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Build element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Build find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(BuildBindingModel model)
+        {
+            CheckModel(model);
+            if (_buildStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Build operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(BuildBindingModel model)
+        {
+            CheckModel(model);
+            if (_buildStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Build operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(BuildBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_buildStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Build operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(BuildBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия сборки", nameof(model.Name));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена сборки должна быть больше 0", nameof(model.Price));
+            }
+            var element = _buildStorage.GetElement(new BuildSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Сборка с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/CommentLogic.cs

@@ -0,0 +1,101 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class CommentLogic : ICommentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ICommentStorage _commentStorage;
+
+        public CommentLogic(ILogger<CommentLogic> logger, ICommentStorage commentStorage)
+        {
+            _logger = logger;
+            _commentStorage = commentStorage;
+        }
+
+        public List<CommentViewModel>? ReadList(CommentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Comment. Date:{Date}. Id:{Id}", model?.Date, model?.Id);
+            var list = model == null ? _commentStorage.GetFullList() :
+                _commentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Comment return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Comment. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public CommentViewModel? ReadElement(CommentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Comment. Date:{Date}. Id:{ Id}", model.Date, model.Id);
+            var element = _commentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Comment element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Comment find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(CommentBindingModel model)
+        {
+            CheckModel(model);
+            if (_commentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CommentBindingModel model)
+        {
+            CheckModel(model);
+            if (_commentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CommentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_commentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(CommentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Text))
+            {
+                throw new ArgumentNullException("Нет текста комментария", nameof(model.Text));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/ComponentLogic.cs

@@ -0,0 +1,113 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class ComponentLogic : IComponentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentStorage _componentStorage;
+
+        public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage componentStorage)
+        {
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+
+        public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Component. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ? _componentStorage.GetFullList() :
+                _componentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Component return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Component. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ComponentViewModel? ReadElement(ComponentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Component. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _componentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Component element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Component find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ComponentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_componentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Component operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(ComponentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия компонента", nameof(model.Name));
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Cost));
+            }
+            var element = _componentStorage.GetElement(new ComponentSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/OrderLogic.cs

@@ -0,0 +1,115 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Enums;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. OrderId:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+
+            if (model.Status != OrderStatus.Неизвестен)
+                return false;
+            model.Status = OrderStatus.Принят;
+
+            if (_orderStorage.Insert(model) == null)
+            {
+                model.Status = OrderStatus.Неизвестен;
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return ToNextStatus(model, OrderStatus.Выполняется);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ToNextStatus(model, OrderStatus.Готов);
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ToNextStatus(model, OrderStatus.Выдан);
+        }
+
+        public bool ToNextStatus(OrderBindingModel model, OrderStatus orderStatus)
+        {
+            CheckModel(model, false);
+            var element = _orderStorage.GetElement(new OrderSearchModel()
+            {
+                Id = model.Id
+            });
+            if (element == null)
+            {
+                throw new ArgumentNullException(nameof(element));
+            }
+
+            model.OrderProduct = element.OrderProduct;
+            model.DateCreate = element.DateCreate;
+            model.Status = element.Status;
+
+            if (model.Status != orderStatus - 1)
+            {
+                _logger.LogWarning("Status update to " + orderStatus + " operation failed");
+                return false;
+            }
+            model.Status = orderStatus;
+
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+                _logger.LogWarning("Changing status operation faled");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Цена заказа должна быть больше 0", nameof(model.Sum));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/ProductLogic.cs

@@ -0,0 +1,115 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class ProductLogic : IProductLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IProductStorage _productStorage;
+
+        public ProductLogic(ILogger logger, IProductStorage productStorage)
+        {
+            _logger = logger;
+            _productStorage = productStorage;
+        }
+
+        public List<ProductViewModel>? ReadList(ProductSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Product. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ?
+                _productStorage.GetFullList() :
+                _productStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Product return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Product. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ProductViewModel? ReadElement(ProductSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Product. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _productStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Product element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Product find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ProductBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Product operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ProductBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Product Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ProductBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_productStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Product operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ProductBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentException("Нет названия продукта", nameof(model.Name));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена продукта должна быть больше 0", nameof(model.Price));
+            }
+            var element = _productStorage.GetElement(new ProductSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Продукт с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/PurchaseLogic.cs

@@ -0,0 +1,101 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class PurchaseLogic : IPurchaseLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IPurchaseStorage _purchaseStorage;
+
+        public PurchaseLogic(ILogger<PurchaseLogic> logger, IPurchaseStorage purchaseStorage)
+        {
+            _logger = logger;
+            _purchaseStorage = purchaseStorage;
+        }
+
+        public List<PurchaseViewModel>? ReadList(PurchaseSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Purchase. Id:{ Id}", model?.Id);
+            var list = model == null ? _purchaseStorage.GetFullList() :
+                _purchaseStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Purchase return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Purchase. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public PurchaseViewModel? ReadElement(PurchaseSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Purchase. Id:{ Id}", model.Id);
+            var element = _purchaseStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Purchase element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Purchase find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_purchaseStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_purchaseStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(PurchaseBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_purchaseStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(PurchaseBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Стоимость покупки должна быть больше 0", nameof(model.Cost));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/StoreKeeperLogic.cs

@@ -0,0 +1,107 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class StoreKeeperLogic : IStoreKeeperLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IStoreKeeperStorage _storeKeeperStorage;
+        public StoreKeeperLogic(ILogger<StoreKeeperLogic> logger, IStoreKeeperStorage storeKeeperStorage)
+        {
+            _logger = logger;
+            _storeKeeperStorage = storeKeeperStorage;
+        }
+        public List<StoreKeeperViewModel>? ReadList(StoreKeeperSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Login:{Login}.Id:{Id}", model?.Login, model?.Id);
+            var list = model == null ? _storeKeeperStorage.GetFullList() : _storeKeeperStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public StoreKeeperViewModel? ReadElement(StoreKeeperSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Login:{Login}.Id:{Id}", model.Login, model.Id);
+            var element = _storeKeeperStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(StoreKeeperBindingModel model)
+        {
+            CheckModel(model);
+            if (_storeKeeperStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(StoreKeeperBindingModel model)
+        {
+            CheckModel(model);
+            if (_storeKeeperStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(StoreKeeperBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_storeKeeperStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(StoreKeeperBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина кладовщика", nameof(model.Login));
+            }
+            var element = _storeKeeperStorage.GetElement(new StoreKeeperSearchModel
+            {
+                Login = model.Login
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Кладовщик с таким логином уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/VendorLogic.cs

@@ -0,0 +1,107 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class VendorLogic : IVendorLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IVendorStorage _vendorStorage;
+        public VendorLogic(ILogger<VendorLogic> logger, IVendorStorage vendorStorage)
+        {
+            _logger = logger;
+            _vendorStorage = vendorStorage;
+        }
+        public List<VendorViewModel>? ReadList(VendorSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Login:{Login}.Id:{Id}", model?.Login, model?.Id);
+            var list = model == null ? _vendorStorage.GetFullList() : _vendorStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public VendorViewModel? ReadElement(VendorSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Login:{Login}.Id:{Id}", model.Login, model.Id);
+            var element = _vendorStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(VendorBindingModel model)
+        {
+            CheckModel(model);
+            if (_vendorStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(VendorBindingModel model)
+        {
+            CheckModel(model);
+            if (_vendorStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(VendorBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_vendorStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(VendorBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина работника", nameof(model.Login));
+            }
+            var element = _vendorStorage.GetElement(new VendorSearchModel
+            {
+                Login = model.Login
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Работник с таким логином уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/ComputerHardwareStoreBusinessLogic.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Remove="BusinessLogic\**" />
+    <EmbeddedResource Remove="BusinessLogic\**" />
+    <None Remove="BusinessLogic\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/BuildBindingModel.cs

@@ -7,7 +7,8 @@ namespace ComputerHardwareStoreContracts.BindingModels
         public int Id { get; set; }
         public string Name { get; set; } = string.Empty;
         public double Price { get; set; }
-        public int VendorId { get; set; }
+        public IVendorModel Vendor { get; set; }
         public Dictionary<int, (IComponentModel, int)> BuildComponents { get; set; } = new();
+        public List<ICommentModel> Comments { get; set; } = new();
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ComponentBindingModel.cs

@@ -7,6 +7,6 @@ namespace ComputerHardwareStoreContracts.BindingModels
         public int Id { get; set; }
         public string Name { get; set; } = string.Empty;
         public double Cost { get; set; }
-        public int StoreKeeperId { get; set; }
+        public IStoreKeeperModel StoreKeeper { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/OrderBindingModel.cs

@@ -6,12 +6,10 @@ namespace ComputerHardwareStoreContracts.BindingModels
     public class OrderBindingModel : IOrderModel
     {
         public int Id { get; set; }
-        public int CannedId { get; set; }
-        public int Count { get; set; }
-        public double Cost { get; set; }
+        public double Sum { get; set; }
         public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
         public DateTime DateCreate { get; set; } = DateTime.Now;
-        public DateTime? DateImplement { get; set; }
-        public Dictionary<int, (IProductModel, int)> OrderProduct { get; set; } = new();
+        public DateTime? DateImplement { get; set; } = null;
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; set; } = new();
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ProductBindingModel.cs

@@ -8,5 +8,6 @@ namespace ComputerHardwareStoreContracts.BindingModels
         public string Name { get; set; } = string.Empty;
         public double Price { get; set; }
         public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+        public IStoreKeeperModel StoreKeeper { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs

@@ -5,11 +5,11 @@ namespace ComputerHardwareStoreContracts.BindingModels
     public class PurchaseBindingModel : IPurchaseModel
     {
         public int Id { get; set; }
+        public int VendorId { get; set; }
         public double Cost { get; set; }
         public DateTime DateCreate { get; set; }
-        public int VendorId { get; set; }
-        public double Sum { get; set; }
-        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; set; } = new();
-        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; set; } = new();
+        public DateTime? DateImplement { get; set; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; set; } = new();
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new();
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IBuildLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IBuildLogic
+    {
+        List<BuildViewModel>? ReadList(BuildSearchModel? model);
+        BuildViewModel? ReadElement(BuildSearchModel model);
+        bool Create(BuildBindingModel model);
+        bool Update(BuildBindingModel model);
+        bool Delete(BuildBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/ICommentLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface ICommentLogic
+    {
+        List<CommentViewModel>? ReadList(CommentSearchModel? model);
+        CommentViewModel? ReadElement(CommentSearchModel model);
+        bool Create(CommentBindingModel model);
+        bool Update(CommentBindingModel model);
+        bool Delete(CommentBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IPurchaseLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IPurchaseLogic
+    {
+        List<PurchaseViewModel>? ReadList(PurchaseSearchModel? model);
+        PurchaseViewModel? ReadElement(PurchaseSearchModel model);
+        bool Create(PurchaseBindingModel model);
+        bool Update(PurchaseBindingModel model);
+        bool Delete(PurchaseBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj

@@ -6,14 +6,6 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Compile Remove="BusinessLogicsContracts\IStoreKeeperLogic.cs" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <None Include="BusinessLogicsContracts\IStoreKeeperLogic.cs" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj" />
   </ItemGroup>

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/BuildSearchModel.cs

@@ -3,6 +3,8 @@
     public class BuildSearchModel
     {
         public int? Id { get; set; }
-        public string? BuildName { get; set; }
+        public int VendorId { get; set; }
+        public int? ProductId { get; set; }
+        public string? Name { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/CommentSearchModel.cs

@@ -3,6 +3,5 @@
     public class CommentSearchModel
     {
         public int? Id { get; set; }
-        public DateTime? Date { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ComponentSearchModel.cs

@@ -3,6 +3,7 @@
     public class ComponentSearchModel
     {
         public int? Id { get; set; }
-        public string? ComponentName { get; set; }
+        public string? Name { get; set; }
+        public int? StoreKeeperId { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs

@@ -3,6 +3,8 @@
     public class ProductSearchModel
     {
         public int? Id { get; set; }
-        public string? ProductName { get; set; }
+        public string? Name { get; set; }
+        public int StoreKeeperId { get; set; }
+        public int? BuildId { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/PurchaseSearchModel.cs

@@ -3,6 +3,7 @@
     public class PurchaseSearchModel
     {
         public int? Id { get; set; }
+        public int? VendorId { get; set; }
         public DateTime? DateFrom { get; set; }
         public DateTime? DateTo { get; set; }
     }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/StoreKeeperSearchModel.cs

@@ -3,7 +3,6 @@
     public class StoreKeeperSearchModel
     {
         public int? Id { get; set; }
-        public string? Email { get; set; }
-        public string? Password { get; set; }
+        public string? Login { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/VendorSearchModel.cs

@@ -3,7 +3,7 @@
     public class VendorSearchModel
     {
         public int? Id { get; set; }
-        public string? Email { get; set; }
+        public string? Login { get; set; }
         public string? Password { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IBuildStorage.cs

@@ -4,7 +4,7 @@ using ComputerHardwareStoreContracts.ViewModels;
 
 namespace ComputerHardwareStoreContracts.StorageContracts
 {
-    public interface IBuidStorage
+    public interface IBuildStorage
     {
         List<BuildViewModel> GetFullList();
         List<BuildViewModel> GetFilteredList(BuildSearchModel model);

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/BuildViewModel.cs

@@ -7,10 +7,11 @@ namespace ComputerHardwareStoreContracts.ViewModels
     {
         public int Id { get; set; }
         [DisplayName("Название сборки")]
-        public string Name { get; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
         [DisplayName("Стоимость")]
-        public double Price { get; }
-        public int VendorId { get; }
-        public Dictionary<int, (IComponentModel, int)> BuildComponents { get; } = new();
+        public double Price { get; set; }
+        public IVendorModel Vendor { get; set; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponents { get; set; } = new();
+        public List<ICommentModel> Comments { get; set; } = new();
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/CommentViewModel.cs

@@ -7,6 +7,5 @@ namespace ComputerHardwareStoreContracts.ViewModels
         public int Id { get; set; }
         public DateTime Date { get; set; }
         public string Text { get; set; } = string.Empty;
-        public int BuildId { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ComponentViewModel.cs

@@ -10,6 +10,6 @@ namespace ComputerHardwareStoreContracts.ViewModels
         public string Name { get; set; } = string.Empty;
         [DisplayName("Цена")]
         public double Cost { get; set; }
-        public int StoreKeeperId { get; set; }
+        public IStoreKeeperModel StoreKeeper { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/OrderViewModel.cs

@@ -1,15 +1,21 @@
-using ComputerHardwareStoreDataModels.Models;
+using ComputerHardwareStoreDataModels.Enums;
+using ComputerHardwareStoreDataModels.Models;
 using System.ComponentModel;
 
 namespace ComputerHardwareStoreContracts.ViewModels
 {
     public class OrderViewModel : IOrderModel
     {
+        [DisplayName("Номер")]
         public int Id { get; set; }
-        [DisplayName("Стоимость")]
-        public double Cost { get; set; }
+        [DisplayName("Сумма")]
+        public double Sum { get; set; }
+        [DisplayName("Статус")]
+        public OrderStatus Status { get; set; }
         [DisplayName("Дата создания")]
         public DateTime DateCreate { get; set; }
-        public Dictionary<int, (IProductModel, int)> OrderProduct { get; set; } = new();
+        [DisplayName("Дата выполнения")]
+        public DateTime? DateImplement { get; set; }
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; set; } = new();
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ProductViewModel.cs

@@ -10,8 +10,7 @@ namespace ComputerHardwareStoreContracts.ViewModels
         public string Name { get; set; } = string.Empty;
         [DisplayName("Цена")]
         public double Price { get; set; }
-        public Dictionary<int, (IComponentModel, int)> CannedComponents { get; set; } = new();
-
-        public Dictionary<int, (IComponentModel, int)> ProductComponents => throw new NotImplementedException();
+        public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+        public IStoreKeeperModel StoreKeeper { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/PurchaseViewModel.cs

@@ -10,11 +10,12 @@ namespace ComputerHardwareStoreContracts.ViewModels
         public double Cost { get; set; }
         [DisplayName("Дата создания")]
         public DateTime DateCreate { get; set; }
+        public DateTime? DateImplement { get; set; }
         public int VendorId { get; set; }
         [DisplayName("Сумма")]
         public double Sum { get; set; }
-        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; set; } = new();
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; set; } = new();
 
-        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; set; } = new();
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new(); 
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IBuildModel.cs

@@ -4,7 +4,8 @@
     {
         string Name { get; }
         double Price { get; }
-        int VendorId { get; }
+        IVendorModel Vendor { get; }
         public Dictionary<int, (IComponentModel, int)> BuildComponents { get; }
+        public List<ICommentModel> Comments { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/ICommentModel.cs

@@ -4,6 +4,5 @@
     {
         DateTime Date { get; }
         string Text { get; }
-        int BuildId { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IComponentModel.cs

@@ -4,6 +4,6 @@
     {
         string Name { get; }
         double Cost { get; }
-        int StoreKeeperId { get; }
+        IStoreKeeperModel StoreKeeper { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs

@@ -1,9 +1,13 @@
-namespace ComputerHardwareStoreDataModels.Models
+using ComputerHardwareStoreDataModels.Enums;
+
+namespace ComputerHardwareStoreDataModels.Models
 {
     public interface IOrderModel : IId
     {
-        double Cost { get; }
+        double Sum { get; }
+        OrderStatus Status { get; }
         DateTime DateCreate { get; }
-        public Dictionary<int, (IProductModel, int)> OrderProduct { get; }
+        DateTime? DateImplement { get; }
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IProductModel.cs

@@ -4,6 +4,7 @@
     {
         string Name { get; }
         double Price { get; }
+        public IStoreKeeperModel StoreKeeper { get; }
         public Dictionary<int, (IComponentModel, int)> ProductComponents { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IPurchaseModel.cs

@@ -2,11 +2,11 @@
 {
     public interface IPurchaseModel : IId
     {
+        int VendorId { get; }
         double Cost { get; }
         DateTime DateCreate { get; }
-        int VendorId { get; }
-        double Sum { get; }
-        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; }
-        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; }
+        DateTime? DateImplement { get; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; }
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/ComputerHardwareStoreDBContext.cs

@@ -0,0 +1,31 @@
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement
+{
+    public class ComputerHardwareStoreDBContext : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseNpgsql("Host=192.168.1.61:5432;Database=computerhardwarestore;Username=compstore;Password=compstore");
+
+            base.OnConfiguring(optionsBuilder);
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Product> Products { set; get; }
+        public virtual DbSet<ProductComponent> ProductComponents { set; get; }
+
+        public virtual DbSet<StoreKeeper> StoreKeepers { set; get; }
+        public virtual DbSet<Build> Builds { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<OrderProduct> OrderProducts { set; get; }
+        public virtual DbSet<BuildComponent> BuildComponents { set; get; }
+        public virtual DbSet<Comment> Comments { set; get; }
+        public virtual DbSet<Vendor> Vendors { set; get; }
+        public virtual DbSet<Purchase> Purchases { set; get; }
+        public virtual DbSet<PurchaseBuild> PurchaseBuilds { set; get; }
+        public virtual DbSet<PurchaseProduct> PurchaseProducts { set; get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/ComputerHardwareStoreDatabaseImplement.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj" />
+    <ProjectReference Include="..\ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/BuildStorage.cs

@@ -0,0 +1,125 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class BuildStorage : IBuildStorage
+    {
+        public List<BuildViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Select(b => b.GetViewModel)
+                .ToList();
+        }
+
+        public List<BuildViewModel> GetFilteredList(BuildSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                // только те, что созданы пользователем
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.VendorId
+                // если есть хотя бы 1 общий компонент с товарами
+                && !model.ProductId.HasValue || b.Components.FirstOrDefault(
+                    c => c.Component.ProductComponents.FirstOrDefault(
+                        p => p.ProductId == model.ProductId)
+                    != null)
+                != null)
+                // вместе с комментами
+                .Include(b => b.Comments)
+                // вместе с компонентами
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Select(b => b.GetViewModel)
+                .ToList();
+        }
+
+        public BuildViewModel? GetElement(BuildSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.VendorId)
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .FirstOrDefault(b =>
+                (!string.IsNullOrEmpty(model.Name) && b.Name == model.Name) ||
+                (model.Id.HasValue && b.Id == model.Id))?
+                .GetViewModel;
+        }        
+
+        public BuildViewModel? Insert(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newBuild = Build.Create(context, model);
+            if (newBuild == null)
+            {
+                return null;
+            }
+            context.Builds.Add(newBuild);
+            context.SaveChanges();
+            return context.Builds
+                .Include(b => b.Vendor)
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .FirstOrDefault(p => p.Id == newBuild.Id)?
+                .GetViewModel;
+        }
+
+        public BuildViewModel? Update(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var build = context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.Vendor.Id)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (build == null)
+            {
+                return null;
+            }
+            context.Update(model);
+            context.SaveChanges();
+            return build.GetViewModel;
+        }
+        public BuildViewModel? Delete(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var build = context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.Vendor.Id)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (build == null)
+            {
+                return null;
+            }
+            context.Builds.Remove(build);
+            context.SaveChanges();
+            return build.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/CommentStorage.cs

@@ -0,0 +1,77 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class CommentStorage : ICommentStorage
+    {
+        public List<CommentViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<CommentViewModel> GetFilteredList(CommentSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public CommentViewModel? GetElement(CommentSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .FirstOrDefault(x => x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public CommentViewModel? Insert(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newComment = Comment.Create(model);
+            if (newComment == null)
+            {
+                return null;
+            }
+            context.Comments.Add(newComment);
+            context.SaveChanges();
+            return newComment.GetViewModel;
+        }
+        public CommentViewModel? Update(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Comments.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+
+        public CommentViewModel? Delete(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Comments.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Comments.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,84 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .Select(c => c.GetViewModel)
+                .ToList();
+        }
+
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .Where(c => c.Name.Contains(model.Name))
+                .Select(c => c.GetViewModel)
+                .ToList();
+        }
+
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .FirstOrDefault(c =>
+                (!string.IsNullOrEmpty(model.Name) && c .Name == model.Name) ||
+                (model.Id.HasValue && c.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Components.FirstOrDefault(c => c.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            context.Components.Remove(element);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,108 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .Select(o => o.GetViewModel)
+                .ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders 
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .Where(o => 
+                (model.Id.HasValue && o.Id == model.Id) ||
+                ((model.DateFrom.HasValue && model.DateTo.HasValue) && 
+                ((model.DateFrom <= o.DateCreate && o.DateCreate <= model.DateTo) ||
+                (o.DateImplement.HasValue && o.DateCreate < model.DateFrom && model.DateFrom < o.DateImplement)))
+                )
+                .Select(o => o.GetViewModel)
+                .ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .FirstOrDefault(o => o.Id == model.Id)?
+                .GetViewModel;
+
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newOrder = Order.Create(context, model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var order = context.Orders
+                    .Include(o => o.Products)
+                    .ThenInclude(o => o.Product)
+                    .FirstOrDefault(o => o.Id == model.Id);
+                if (order == null)
+                {
+                    return null;
+                }
+                order.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return order.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .FirstOrDefault(o => o.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ProductStorage.cs

@@ -0,0 +1,108 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class ProductStorage : IProductStorage
+    {
+        public List<ProductViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public List<ProductViewModel> GetFilteredList(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name)) 
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Where(p => (p.StoreKeeper.Id == model.StoreKeeperId)
+                    // есть хотя бы 1 общий со сборкой компонент
+                    && (!model.BuildId.HasValue || p.Components.FirstOrDefault
+                        (c => c.Component.BuldComponents.FirstOrDefault(
+                            b => b.BuildId == model.BuildId)
+                        != null)
+                    != null))
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public ProductViewModel? GetElement(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue) 
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p =>
+                (!string.IsNullOrEmpty(model.Name) && p.Name == model.Name) ||
+                (model.Id.HasValue && p.Id == model.Id))?
+                .GetViewModel;
+        }
+
+        public ProductViewModel? Insert(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newProduct = Product.Create(context, model);
+            if (newProduct == null)
+            {
+                return null;
+            }
+            context.Products.Add(newProduct);
+            context.SaveChanges();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == newProduct.Id)?
+                .GetViewModel;
+        }
+
+        public ProductViewModel? Update(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (product == null)
+            {
+                return null; 
+            }
+            context.Update(model);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+
+        public ProductViewModel? Delete(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (product == null) 
+            {
+                return null;
+            }
+            context.Products.Remove(product);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/PurchaseStorage.cs

@@ -0,0 +1,117 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class PurchaseStorage : IPurchaseStorage
+    {
+        public List<PurchaseViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+        
+        public List<PurchaseViewModel> GetFilteredList(PurchaseSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .Where(p =>
+                (model.Id.HasValue && p.Id == model.Id) ||
+                ((model.DateFrom.HasValue && model.DateTo.HasValue) &&
+                ((model.DateFrom <= p.DateCreate && p.DateCreate <= model.DateTo) ||
+                (p.DateImplement.HasValue && p.DateCreate < model.DateFrom && model.DateFrom < p.DateImplement)))
+                )
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public PurchaseViewModel? GetElement(PurchaseSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .FirstOrDefault(p => p.Id == model.Id)?
+                .GetViewModel;
+        }
+
+        public PurchaseViewModel? Insert(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newPurchase = Purchase.Create(context, model);
+            if (newPurchase == null)
+            {
+                return null;
+            }
+            context.Purchases.Add(newPurchase);
+            context.SaveChanges();
+            return newPurchase.GetViewModel;
+        }
+
+        public PurchaseViewModel? Update(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var purchase = context.Purchases
+                    .Include(p => p.Builds)
+                    .ThenInclude(p => p.Build)
+                    .Include(p => p.Products)
+                    .ThenInclude(p => p.Product)
+                    .FirstOrDefault(p => p.Id == model.Id);
+                if (purchase == null)
+                {
+                    return null;
+                }
+                purchase.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return purchase.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public PurchaseViewModel? Delete(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .FirstOrDefault(o => o.Id == model.Id);
+            if (element != null)
+            {
+                context.Purchases.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/StoreKeeperStorage.cs

@@ -0,0 +1,86 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class StoreKeeperStorage : IStoreKeeperStorage
+    {
+        public StoreKeeperViewModel? GetElement(StoreKeeperSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Login)
+                && x.Login == model.Login)
+                || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public List<StoreKeeperViewModel> GetFilteredList(StoreKeeperSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .Where(x => x.Login.Contains(model.Login))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<StoreKeeperViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .Include(x => x.Components)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public StoreKeeperViewModel? Insert(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newStoreKeeper = StoreKeeper.Create(context, model);
+            if (newStoreKeeper == null)
+            {
+                return null;
+            }
+            context.StoreKeepers.Add(newStoreKeeper);
+            context.SaveChanges();
+            return newStoreKeeper.GetViewModel;
+        }
+
+        public StoreKeeperViewModel? Update(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.StoreKeepers.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+        public StoreKeeperViewModel? Delete(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.StoreKeepers.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.StoreKeepers.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/VendorStorage.cs

@@ -0,0 +1,84 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class VendorStorage : IVendorStorage
+    {
+        public VendorViewModel? GetElement(VendorSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Login)
+                && x.Login == model.Login)
+                || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public List<VendorViewModel> GetFilteredList(VendorSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .Where(x => x.Login.Contains(model.Login))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<VendorViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public VendorViewModel? Insert(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newVendor = Vendor.Create(context, model);
+            if (newVendor == null)
+            {
+                return null;
+            }
+            context.Vendors.Add(newVendor);
+            context.SaveChanges();
+            return newVendor.GetViewModel;
+        }
+
+        public VendorViewModel? Update(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Vendors.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+        public VendorViewModel? Delete(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Vendors.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Vendors.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240501130816_fix.Designer.cs

@@ -0,0 +1,547 @@
+// <auto-generated />
+using System;
+using ComputerHardwareStoreDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputerHardwareStoreDBContext))]
+    [Migration("20240501130816_fix")]
+    partial class fix
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Builds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("ComponentId");
+
+                    b.ToTable("BuildComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrderId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("OrderProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int?>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseBuilds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StoreKeepers");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Vendors");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", "Vendor")
+                        .WithMany("Builds")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Vendor");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany("Components")
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany()
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Component");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", "StoreKeeperЗЛ")
+                        .WithMany("Components")
+                        .HasForeignKey("StoreKeeperId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("StoreKeeperЗЛ");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Order", "Order")
+                        .WithMany("Products")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", null)
+                        .WithMany("Products")
+                        .HasForeignKey("StoreKeeperId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ProductComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", null)
+                        .WithMany("Purchases")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Builds")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Purchases");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240501130816_fix.cs

@@ -0,0 +1,80 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class fix : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Orders_Products_ProductId",
+                table: "Orders");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Orders_ProductId",
+                table: "Orders");
+
+            migrationBuilder.DropColumn(
+                name: "Count",
+                table: "Orders");
+
+            migrationBuilder.DropColumn(
+                name: "ProductId",
+                table: "Orders");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Comments_BuildId",
+                table: "Comments",
+                column: "BuildId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Comments_Builds_BuildId",
+                table: "Comments",
+                column: "BuildId",
+                principalTable: "Builds",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Comments_Builds_BuildId",
+                table: "Comments");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Comments_BuildId",
+                table: "Comments");
+
+            migrationBuilder.AddColumn<int>(
+                name: "Count",
+                table: "Orders",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.AddColumn<int>(
+                name: "ProductId",
+                table: "Orders",
+                type: "integer",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_ProductId",
+                table: "Orders",
+                column: "ProductId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Orders_Products_ProductId",
+                table: "Orders",
+                column: "ProductId",
+                principalTable: "Products",
+                principalColumn: "Id");
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240501142223_cs2.Designer.cs

@@ -0,0 +1,566 @@
+// <auto-generated />
+using System;
+using ComputerHardwareStoreDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputerHardwareStoreDBContext))]
+    [Migration("20240501142223_cs2")]
+    partial class cs2
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Builds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("ComponentId");
+
+                    b.ToTable("BuildComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int?>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrderId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("OrderProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int?>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseBuilds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StoreKeepers");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Vendors");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", "Vendor")
+                        .WithMany("Builds")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Vendor");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany("Components")
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("BuldComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Component");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", "StoreKeeperЗЛ")
+                        .WithMany("Components")
+                        .HasForeignKey("StoreKeeperId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("StoreKeeperЗЛ");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("ProductId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Order", "Order")
+                        .WithMany("Products")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", null)
+                        .WithMany("Products")
+                        .HasForeignKey("StoreKeeperId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ProductComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", null)
+                        .WithMany("Purchases")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Builds")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("BuldComponents");
+
+                    b.Navigation("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Purchases");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240501142223_cs2.cs

@@ -0,0 +1,59 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class cs2 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "Count",
+                table: "Orders",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.AddColumn<int>(
+                name: "ProductId",
+                table: "Orders",
+                type: "integer",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_ProductId",
+                table: "Orders",
+                column: "ProductId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Orders_Products_ProductId",
+                table: "Orders",
+                column: "ProductId",
+                principalTable: "Products",
+                principalColumn: "Id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Orders_Products_ProductId",
+                table: "Orders");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Orders_ProductId",
+                table: "Orders");
+
+            migrationBuilder.DropColumn(
+                name: "Count",
+                table: "Orders");
+
+            migrationBuilder.DropColumn(
+                name: "ProductId",
+                table: "Orders");
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/ComputerHardwareStoreDBContextModelSnapshot.cs

@@ -0,0 +1,563 @@
+// <auto-generated />
+using System;
+using ComputerHardwareStoreDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputerHardwareStoreDBContext))]
+    partial class ComputerHardwareStoreDBContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Builds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("ComponentId");
+
+                    b.ToTable("BuildComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int?>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrderId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("OrderProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int?>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseBuilds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StoreKeepers");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Vendors");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", "Vendor")
+                        .WithMany("Builds")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Vendor");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany("Components")
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("BuldComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Component");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", "StoreKeeperЗЛ")
+                        .WithMany("Components")
+                        .HasForeignKey("StoreKeeperId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("StoreKeeperЗЛ");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("ProductId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Order", "Order")
+                        .WithMany("Products")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", null)
+                        .WithMany("Products")
+                        .HasForeignKey("StoreKeeperId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ProductComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", null)
+                        .WithMany("Purchases")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Builds")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("BuldComponents");
+
+                    b.Navigation("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Purchases");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Build.cs

@@ -0,0 +1,88 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Build : IBuildModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        [NotMapped]
+        private Dictionary<int, (IComponentModel, int)>? _buildComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> BuildComponents
+        {
+            get
+            {
+                if (_buildComponents == null)
+                {
+                    _buildComponents = Components
+                        .ToDictionary(bc => bc.ComponentId, bc =>
+                        (bc.Component as IComponentModel, bc.Count));
+                }
+                return _buildComponents;
+            }   
+        }
+        [ForeignKey("BuildId")]
+        public virtual List<BuildComponent> Components { get; set; } = new();
+        [ForeignKey("BuildId")]
+
+        public virtual List<Comment> Comments { get; set; } = new();
+        [NotMapped]
+        List<ICommentModel> IBuildModel.Comments => Comments.Select(c => c as ICommentModel).ToList();
+
+        public virtual Vendor Vendor { get; private set; } = new();
+        IVendorModel IBuildModel.Vendor => Vendor as IVendorModel;
+
+        public static Build? Create(ComputerHardwareStoreDBContext context, BuildBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Price = model.Price,
+                Vendor = context.Vendors.First(v => v.Id == model.Vendor.Id),
+                Components = context.Components
+                    .Where(c => model.BuildComponents.ContainsKey(c.Id))
+                    .Select(c => new BuildComponent()
+                    {
+                        BuildId = model.Id,
+                        ComponentId = c.Id,
+                        Component = c,
+                        Count = model.BuildComponents[c.Id].Item2
+                    }).ToList()
+            };
+        }
+
+        public void Update(BuildBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Price = model.Price;
+        }
+
+        public BuildViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Price = Price,
+            Vendor = Vendor,
+            Comments = Comments.Select(c => c as ICommentModel).ToList(),
+            BuildComponents = BuildComponents
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/BuildComponent.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class BuildComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int BuildId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Build Build { get; set; } = new();
+        public virtual Component Component { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Comment.cs

@@ -0,0 +1,49 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Comment : ICommentModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public DateTime Date { get; set; }
+        [Required]
+        public string Text { get; set; } = string.Empty;
+        [Required]
+        public int BuildId { get; set; }
+        public virtual Build Build { get; set; } = new();
+        public static Comment? Create(CommentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new()
+            {
+                Id = model.Id,
+                Date = model.Date,
+                Text = model.Text,
+                BuildId = model.BuildId,
+            };
+        }
+
+        public void Update(CommentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Text = model.Text;
+        }
+
+        public CommentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Date = Date,
+            Text = Text,
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Component.cs

@@ -0,0 +1,56 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [Required]
+        public virtual StoreKeeper? StoreKeeperЗЛ { get; set; }
+        [NotMapped]
+        public IStoreKeeperModel? StoreKeeper { get; set; }
+
+        [ForeignKey("ComponentId")]
+        public virtual List<ProductComponent> ProductComponents { get; set; } = new();
+        [ForeignKey("ComponentId")]
+        public virtual List<BuildComponent> BuldComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Cost = model.Cost,
+                StoreKeeper = model.StoreKeeper
+            };
+        }
+        public void Update (ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Cost = model.Cost;
+        }
+
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Cost = Cost
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Order.cs

@@ -0,0 +1,84 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Enums;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int Count { get; set; }
+        [Required]
+        public double Sum { get; set; }
+        [Required]
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        [Required]
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; }
+
+        private Dictionary<int, (IProductModel, int)>? _orderProducts = null;
+        [NotMapped]
+        public Dictionary<int, (IProductModel, int)> OrderProducts 
+        {
+            get
+            {
+                if (_orderProducts == null)
+                {
+                    _orderProducts = Products
+                        .ToDictionary(
+                            op => op.ProductId, 
+                            op => (op.Product as IProductModel, op.Count));
+                }
+                return _orderProducts;
+            }
+        }
+        [ForeignKey("OrderId")]
+        public virtual List<OrderProduct> Products { get; set; } = new();
+        public static Order? Create(ComputerHardwareStoreDBContext context, OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Products = context.Products
+                    .Where(p => model.OrderProducts.ContainsKey(p.Id))
+                    .Select(p => new OrderProduct()
+                    {
+                        OrderId = model.Id,
+                        ProductId = p.Id,
+                        Product = p,
+                        Count = model.OrderProducts[p.Id].Item2
+                    })
+                    .ToList()
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/OrderProduct.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class OrderProduct
+    {
+        public int Id { get; set; }
+        [Required]
+        public int OrderId { get; set; }
+        [Required]
+        public int ProductId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Product Product { get; set; } = new();
+        public virtual Order Order { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Product.cs

@@ -0,0 +1,102 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Product : IProductModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        [NotMapped]
+        IStoreKeeperModel IProductModel.StoreKeeper => StoreKeeper;
+        public virtual StoreKeeper StoreKeeper {get; set;} = new();
+        private Dictionary<int, (IComponentModel, int)>? _productComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> ProductComponents
+        {
+            get
+            {
+                if (_productComponents == null)
+                {
+                    _productComponents = Components
+                        .ToDictionary(c => c.ComponentId, c => (c.Component as IComponentModel, c.Count));
+                }
+                return _productComponents;
+            }
+        }
+        [ForeignKey("ProductId")]
+        public virtual List<ProductComponent> Components { get; set; } = new();
+        [ForeignKey("ProductId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Product Create(ComputerHardwareStoreDBContext context, ProductBindingModel model)
+        {
+            return new Product()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Price = model.Price,
+                Components = context.Components
+                    .Where(c => model.ProductComponents.ContainsKey(c.Id))
+                    .Select(c => new ProductComponent()
+                    {
+                        ProductId = model.Id,
+                        ComponentId = c.Id,
+                        Component = c,
+                        Count = model.ProductComponents[c.Id].Item2
+                    }).ToList(),
+            };
+        }
+        public void Update(ProductBindingModel model)
+        {
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Price = model.Price;
+            
+        }
+        public ProductViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Price = Price,
+            ProductComponents = ProductComponents,
+            StoreKeeper = StoreKeeper,
+        };
+
+        public static void UpdateComponents(ComputerHardwareStoreDBContext context, ProductBindingModel model)
+        {
+            var productComponents = context.ProductComponents
+                .Where(pc => pc.ProductId == model.Id)
+                .ToList();
+            if (productComponents.Count != 0 && productComponents.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.ProductComponents
+                    .Where(pc => !model.ProductComponents.ContainsKey(pc.ComponentId))
+                    .ExecuteDelete();
+                // обновили количество у существующих записей
+                productComponents
+                    .ForEach(updateComponent =>
+                    {
+                        updateComponent.Count = model.ProductComponents[updateComponent.ComponentId].Item2;
+                        model.ProductComponents.Remove(updateComponent.ComponentId);
+                    });  
+            }
+            // добавили новые
+            context.ProductComponents
+                .AddRange(model.ProductComponents.Values
+                .Select(val => new ProductComponent()
+                {
+                    ProductId = model.Id,
+                    ComponentId = val.Item1.Id,
+                    Count = val.Item2
+                }));
+            context.SaveChanges();
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/ProductComponent.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class ProductComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ProductId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Product Product { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Purchase.cs

@@ -0,0 +1,159 @@
+
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Purchase : IPurchaseModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int VendorId { get; set; }
+        [Required]
+        public double Cost { get; set; }
+        [Required]
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; } = null;
+        private Dictionary<int, (IBuildModel, int)>? _purchaseBuilds = null;
+        [NotMapped]
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds
+        {
+            get
+            {
+                if (_purchaseBuilds == null)
+                {
+                    _purchaseBuilds = Builds
+                        .ToDictionary(op => op.BuildId, op => (op.Build as IBuildModel, op.Count));
+                }
+                return _purchaseBuilds;
+            }
+        }
+
+        [ForeignKey("PurchaseId")]
+        public virtual List<PurchaseBuild> Builds { get; set; } = new();
+        private Dictionary<int, (IProductModel, int)>? _purchaseProducts = null;
+        [NotMapped]
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts
+        {
+            get
+            {
+                if (_purchaseProducts == null)
+                {
+                    _purchaseProducts = Products
+                        .ToDictionary(op => op.ProductId, op => (op.Product as IProductModel, op.Count));
+                }
+                return _purchaseProducts;
+            }
+        }
+        [ForeignKey("PurchaseId")]
+        public virtual List<PurchaseProduct> Products { get; set; } = new();
+
+        public static Purchase Create(ComputerHardwareStoreDBContext context, PurchaseBindingModel model)
+        {
+            return new Purchase()
+            {
+                Id = model.Id,
+                Cost = model.Cost,
+                DateCreate = model.DateCreate,
+                Builds = context.Builds
+                    .Where(b => model.PurchaseBuilds.ContainsKey(b.Id))
+                    .Select(b => new PurchaseBuild()
+                    {
+                        PurchaseId = model.Id,
+                        BuildId = b.Id,
+                        Build = b,
+                        Count = model.PurchaseProducts[b.Id].Item2
+                    }).ToList(),
+                Products = context.Products
+                    .Where(p => model.PurchaseProducts.ContainsKey(p.Id))
+                    .Select (p => new PurchaseProduct()
+                    {
+                        PurchaseId = model.Id,
+                        ProductId = p.Id,
+                        Product = p,
+                        Count = model.PurchaseProducts[p.Id].Item2
+                    })
+                    .ToList()
+            };
+        }
+        public void Update(PurchaseBindingModel model)
+        {
+            Cost = model.Cost;
+
+        }
+        public PurchaseViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Cost = Cost,
+            DateCreate = DateCreate,
+            PurchaseBuilds = PurchaseBuilds,
+            PurchaseProducts = PurchaseProducts
+        };
+
+        public static void UpdateBuilds(ComputerHardwareStoreDBContext context, PurchaseBindingModel model)
+        {
+            var productBuilds = context.PurchaseBuilds
+                .Where(pc => pc.PurchaseId == model.Id)
+                .ToList();
+            if (productBuilds.Count != 0 && productBuilds.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.PurchaseBuilds
+                    .Where(pc => !model.PurchaseBuilds.ContainsKey(pc.BuildId))
+                    .ExecuteDelete();
+                // обновили количество у существующих записей
+                productBuilds
+                    .ForEach(updateBuild =>
+                    {
+                        updateBuild.Count = model.PurchaseBuilds[updateBuild.BuildId].Item2;
+                        model.PurchaseBuilds.Remove(updateBuild.BuildId);
+                    });
+            }
+            // добавили новые
+            context.PurchaseBuilds
+                .AddRange(model.PurchaseBuilds.Values
+                .Select(val => new PurchaseBuild()
+                {
+                    PurchaseId = model.Id,
+                    BuildId = val.Item1.Id,
+                    Count = val.Item2
+                }));
+            context.SaveChanges();
+        }
+
+        public static void UpdateProducts(ComputerHardwareStoreDBContext context, PurchaseBindingModel model)
+        {
+            var productProducts = context.PurchaseProducts
+                .Where(pc => pc.PurchaseId == model.Id)
+                .ToList();
+            if (productProducts.Count != 0 && productProducts.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.PurchaseProducts
+                    .Where(pc => !model.PurchaseProducts.ContainsKey(pc.ProductId))
+                    .ExecuteDelete();
+                // обновили количество у существующих записей
+                productProducts
+                    .ForEach(updateProduct =>
+                    {
+                        updateProduct.Count = model.PurchaseProducts[updateProduct.ProductId].Item2;
+                        model.PurchaseProducts.Remove(updateProduct.ProductId);
+                    });
+            }
+            // добавили новые
+            context.PurchaseProducts
+                .AddRange(model.PurchaseProducts.Values
+                .Select(val => new PurchaseProduct()
+                {
+                    PurchaseId = model.Id,
+                    ProductId = val.Item1.Id,
+                    Count = val.Item2
+                }));
+            context.SaveChanges();
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/PurchaseBuild.cs

@@ -0,0 +1,18 @@
+
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class PurchaseBuild
+    {
+        public int Id { get; set; }
+        [Required]
+        public int PurchaseId { get; set; }
+        [Required]
+        public int BuildId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Purchase Purchase { get; set; } = new();
+        public virtual Build Build { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/PurchaseProduct.cs

@@ -0,0 +1,18 @@
+
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+   public class PurchaseProduct
+   {
+        public int Id { get; set; }
+        [Required]
+        public int PurchaseId { get; set; }
+        [Required]
+        public int ProductId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Purchase Purchase { get; set; } = new();
+        public virtual Product Product { get; set; } = new();
+   }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/StoreKeeper.cs

@@ -0,0 +1,56 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class StoreKeeper : IStoreKeeperModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+        [Required]
+
+        public string Login { get; private set; } = string.Empty;
+        [Required]
+        public string Password { get; private set; } = string.Empty;
+        [ForeignKey("StoreKeeperId")]
+        public virtual List<Product> Products { get; set; } = new();
+        [ForeignKey("StoreKeeperId")]
+        public virtual List<Component> Components { get; set; } = new();
+
+        public static StoreKeeper? Create(ComputerHardwareStoreDBContext context, StoreKeeperBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new StoreKeeper()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Login = model.Login,
+                Password = model.Password,
+            };
+        }
+        public void Update(StoreKeeperBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Password = string.IsNullOrEmpty(model.Password) ? Password : model.Password;
+        }
+
+        public StoreKeeperViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Login = Login,
+            Password = Password
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Vendor.cs

@@ -0,0 +1,57 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Vendor : IVendorModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+        [Required]
+
+        public string Login { get; private set; } = string.Empty;
+        [Required]
+
+        public string Password { get; private set; } = string.Empty;
+        [ForeignKey("VendorId")]
+        public virtual List<Purchase> Purchases { get; set; } = new();
+        [ForeignKey("VendorId")]
+        public virtual List<Build> Builds { get; set; } = new();
+
+        public static Vendor? Create(ComputerHardwareStoreDBContext context, VendorBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Vendor()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Login = model.Login,
+                Password = model.Password,
+            };
+        }
+        public void Update(VendorBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Password = string.IsNullOrEmpty(model.Password) ? Password : model.Password;
+        }
+
+        public VendorViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Login = Login,
+            Password = Password
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/ComputerHardwareStoreREST.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.2" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreDatabaseImplement\ComputerHardwareStoreDatabaseImplement.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/BuildController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class BuildController : Controller
+    {
+        private readonly ILogger<BuildController> _logger;
+        private readonly IBuildStorage _storage;
+
+        public BuildController(ILogger<BuildController> logger, IBuildStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] BuildSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] BuildSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] BuildBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] BuildBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] BuildBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/CommentController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class CommentController : Controller
+    {
+        private readonly ILogger<CommentController> _logger;
+        private readonly ICommentStorage _storage;
+
+        public CommentController(ILogger<CommentController> logger, ICommentStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] CommentSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] CommentSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] CommentBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] CommentBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] CommentBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/OrderController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class OrderController : Controller
+    {
+        private readonly ILogger<OrderController> _logger;
+        private readonly IOrderStorage _storage;
+
+        public OrderController(ILogger<OrderController> logger, IOrderStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] OrderSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] OrderSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] OrderBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] OrderBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] OrderBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/ProductController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class ProductController : Controller
+    {
+        private readonly ILogger<ProductController> _logger;
+        private readonly IProductStorage _storage;
+
+        public ProductController(ILogger<ProductController> logger, IProductStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] ProductSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] ProductSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] ProductBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] ProductBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] ProductBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/PurchaseController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class PurchaseController : Controller
+    {
+        private readonly ILogger<PurchaseController> _logger;
+        private readonly IPurchaseStorage _storage;
+
+        public PurchaseController(ILogger<PurchaseController> logger, IPurchaseStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] PurchaseSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] PurchaseSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] PurchaseBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] PurchaseBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] PurchaseBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/StoreKeepersController.cs

@@ -0,0 +1,88 @@
+using Microsoft.AspNetCore.Mvc;
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class StoreKeepersController : Controller
+    {
+        private readonly ILogger<StoreKeepersController> _logger;
+        private readonly IStoreKeeperStorage _storage;
+
+        public StoreKeepersController(ILogger<StoreKeepersController> logger, IStoreKeeperStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] StoreKeeperSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] StoreKeeperSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] StoreKeeperBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] StoreKeeperBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] StoreKeeperBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Controllers/VendorController.cs

@@ -0,0 +1,87 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ComputerHardwareStoreREST.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class VendorController : Controller
+    {
+        private readonly ILogger<VendorController> _logger;
+        private readonly IVendorStorage _storage;
+
+        public VendorController(ILogger<VendorController> logger, IVendorStorage storage)
+        {
+            _logger = logger;
+            _storage = storage;
+        }
+
+        [HttpPost("get/filter")]
+        public IActionResult GetByFilter([FromBody] VendorSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetFilteredList(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("get")]
+        public IActionResult GetById([FromBody] VendorSearchModel model)
+        {
+            try
+            {
+                var result = _storage.GetElement(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] VendorBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Insert(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPut("update")]
+        public IActionResult Update([FromBody] VendorBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Update(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+        [HttpPost("delete")]
+        public IActionResult Delete([FromBody] VendorBindingModel model)
+        {
+            try
+            {
+                var result = _storage.Delete(model);
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Program.cs

@@ -0,0 +1,41 @@
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreDatabaseImplement;
+using ComputerHardwareStoreDatabaseImplement.Implements;
+using ComputerHardwareStoreREST;
+using Microsoft.EntityFrameworkCore;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+// получаем строку подключения из файла конфигурации
+//DBSetting.ConectionString = builder.Configuration.GetConnectionString("DefaultConnection");
+
+builder.Services.AddSingleton<IComponentStorage, ComponentStorage >();
+builder.Services.AddSingleton<IStoreKeeperStorage, StoreKeeperStorage>();
+builder.Services.AddSingleton<IProductStorage, ProductStorage>();
+builder.Services.AddSingleton<IOrderStorage, OrderStorage>();
+builder.Services.AddSingleton<IBuildStorage, BuildStorage>();
+builder.Services.AddSingleton<ICommentStorage, CommentStorage>();
+builder.Services.AddSingleton<IPurchaseStorage, PurchaseStorage>();
+builder.Services.AddSingleton<IVendorStorage, VendorStorage>();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

ComputerHardwareStore/ComputerHardwareStoreREST/Properties/launchSettings.json

@@ -0,0 +1,12 @@
+{
+  "profiles": {
+    "ComputerHardwareStoreREST": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "https://localhost:63872;http://localhost:63873"
+    }
+  }
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Views/Shared/_ValidationScriptsPartial.cshtml

@@ -0,0 +1,18 @@
+<environment names="Development">
+    <script src="~/lib/jquery-validation/dist/jquery.validate.js"></script>
+    <script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.js"></script>
+</environment>
+<environment names="Staging,Production">
+    <script src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.17.0/jquery.validate.min.js"
+            asp-fallback-src="~/lib/jquery-validation/dist/jquery.validate.min.js"
+            asp-fallback-test="window.jQuery && window.jQuery.validator"
+            crossorigin="anonymous"
+            integrity="sha384-rZfj/ogBloos6wzLGpPkkOr/gpkBNLZ6b6yLy4o+ok+t/SAKlL5mvXLr0OXNi1Hp">
+    </script>
+    <script src="https://ajax.aspnetcdn.com/ajax/jquery.validation.unobtrusive/3.2.9/jquery.validate.unobtrusive.min.js"
+            asp-fallback-src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"
+            asp-fallback-test="window.jQuery && window.jQuery.validator && window.jQuery.validator.unobtrusive"
+            crossorigin="anonymous"
+            integrity="sha384-ifv0TYDWxBHzvAk2Z0n8R434FL1Rlv/Av18DXE43N/1rvHyOG4izKst0f2iSLdds">
+    </script>
+</environment>

ComputerHardwareStore/ComputerHardwareStoreREST/Views/StoreKeepers/Create.cshtml

@@ -0,0 +1,43 @@
+@model ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper
+
+@{
+    ViewData["Title"] = "Create";
+}
+
+<h1>Create</h1>
+
+<h4>StoreKeeper</h4>
+<hr />
+<div class="row">
+    <div class="col-md-4">
+        <form asp-action="Create">
+            <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+            <div class="form-group">
+                <label asp-for="Name" class="control-label"></label>
+                <input asp-for="Name" class="form-control" />
+                <span asp-validation-for="Name" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Login" class="control-label"></label>
+                <input asp-for="Login" class="form-control" />
+                <span asp-validation-for="Login" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Password" class="control-label"></label>
+                <input asp-for="Password" class="form-control" />
+                <span asp-validation-for="Password" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <input type="submit" value="Create" class="btn btn-primary" />
+            </div>
+        </form>
+    </div>
+</div>
+
+<div>
+    <a asp-action="Index">Back to List</a>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Views/StoreKeepers/Delete.cshtml

@@ -0,0 +1,39 @@
+@model ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper
+
+@{
+    ViewData["Title"] = "Delete";
+}
+
+<h1>Delete</h1>
+
+<h3>Are you sure you want to delete this?</h3>
+<div>
+    <h4>StoreKeeper</h4>
+    <hr />
+    <dl class="row">
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Name)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Name)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Login)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Login)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Password)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Password)
+        </dd>
+    </dl>
+    
+    <form asp-action="Delete">
+        <input type="hidden" asp-for="Id" />
+        <input type="submit" value="Delete" class="btn btn-danger" /> |
+        <a asp-action="Index">Back to List</a>
+    </form>
+</div>

ComputerHardwareStore/ComputerHardwareStoreREST/Views/StoreKeepers/Details.cshtml

@@ -0,0 +1,36 @@
+@model ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper
+
+@{
+    ViewData["Title"] = "Details";
+}
+
+<h1>Details</h1>
+
+<div>
+    <h4>StoreKeeper</h4>
+    <hr />
+    <dl class="row">
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Name)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Name)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Login)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Login)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Password)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Password)
+        </dd>
+    </dl>
+</div>
+<div>
+    <a asp-action="Edit" asp-route-id="@Model?.Id">Edit</a> |
+    <a asp-action="Index">Back to List</a>
+</div>

ComputerHardwareStore/ComputerHardwareStoreREST/Views/StoreKeepers/Edit.cshtml

@@ -0,0 +1,44 @@
+@model ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper
+
+@{
+    ViewData["Title"] = "Edit";
+}
+
+<h1>Edit</h1>
+
+<h4>StoreKeeper</h4>
+<hr />
+<div class="row">
+    <div class="col-md-4">
+        <form asp-action="Edit">
+            <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+            <input type="hidden" asp-for="Id" />
+            <div class="form-group">
+                <label asp-for="Name" class="control-label"></label>
+                <input asp-for="Name" class="form-control" />
+                <span asp-validation-for="Name" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Login" class="control-label"></label>
+                <input asp-for="Login" class="form-control" />
+                <span asp-validation-for="Login" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Password" class="control-label"></label>
+                <input asp-for="Password" class="form-control" />
+                <span asp-validation-for="Password" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <input type="submit" value="Save" class="btn btn-primary" />
+            </div>
+        </form>
+    </div>
+</div>
+
+<div>
+    <a asp-action="Index">Back to List</a>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}

ComputerHardwareStore/ComputerHardwareStoreREST/Views/StoreKeepers/Index.cshtml

@@ -0,0 +1,47 @@
+@model IEnumerable<ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper>
+
+@{
+    ViewData["Title"] = "Index";
+}
+
+<h1>Index</h1>
+
+<p>
+    <a asp-action="Create">Create New</a>
+</p>
+<table class="table">
+    <thead>
+        <tr>
+            <th>
+                @Html.DisplayNameFor(model => model.Name)
+            </th>
+            <th>
+                @Html.DisplayNameFor(model => model.Login)
+            </th>
+            <th>
+                @Html.DisplayNameFor(model => model.Password)
+            </th>
+            <th></th>
+        </tr>
+    </thead>
+    <tbody>
+@foreach (var item in Model) {
+        <tr>
+            <td>
+                @Html.DisplayFor(modelItem => item.Name)
+            </td>
+            <td>
+                @Html.DisplayFor(modelItem => item.Login)
+            </td>
+            <td>
+                @Html.DisplayFor(modelItem => item.Password)
+            </td>
+            <td>
+                <a asp-action="Edit" asp-route-id="@item.Id">Edit</a> |
+                <a asp-action="Details" asp-route-id="@item.Id">Details</a> |
+                <a asp-action="Delete" asp-route-id="@item.Id">Delete</a>
+            </td>
+        </tr>
+}
+    </tbody>
+</table>

ComputerHardwareStore/VendorClient/Controllers/HomeController.cs

@@ -0,0 +1,143 @@
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
+using VendorClient.Models;
+
+namespace VendorClient.Controllers
+{
+    public class HomeController : Controller
+    {
+        private readonly ILogger<HomeController> _logger;
+
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+        }
+
+        [HttpGet]
+        public IActionResult Index()
+        {
+            return View();
+        }
+
+        [HttpGet]
+        public IActionResult Privacy()
+        {
+            return View();
+        }
+
+        [HttpGet]
+        public IActionResult Enter()
+        {
+            return View();
+        }
+
+        [HttpGet]
+        public IActionResult Register()
+        {
+            return View();
+		}
+
+		[HttpGet]
+		public IActionResult AddBuildToPurchase()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult Builds()
+		{
+			return View(new List<BuildViewModel>());
+		}
+
+		[HttpGet]
+		public IActionResult BuildCreate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult BuildDelete()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult BuildUpdate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult CommentCreate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult CommentDelete()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult CommentUpdate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult Comments()
+        {
+            return View(new List<CommentViewModel>());
+        }
+
+		[HttpGet]
+		public IActionResult ProductsList()
+        {
+            return View(new List<BuildViewModel>());
+        }
+
+		[HttpGet]
+		public IActionResult PurchaseCreate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult PurchaseDelete()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult Purchases()
+        {
+            return View(new List<PurchaseViewModel>());
+        }
+
+		[HttpGet]
+		public IActionResult PurchaseUpdate()
+		{
+			return View();
+		}
+
+		[HttpGet]
+		public IActionResult Report()
+        {
+            return View(new List<PurchaseViewModel>());
+        }
+
+        [HttpPost]
+        public void Report(string password)
+        {
+            Response.Redirect("ReportOnly");
+        }
+
+		[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+        public IActionResult Error()
+        {
+            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
+        }
+    }
+}

ComputerHardwareStore/VendorClient/Models/ErrorViewModel.cs

@@ -0,0 +1,9 @@
+namespace VendorClient.Models
+{
+    public class ErrorViewModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+    }
+}

ComputerHardwareStore/VendorClient/Program.cs

@@ -0,0 +1,23 @@
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

ComputerHardwareStore/VendorClient/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:27793",
+      "sslPort": 44393
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5194",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7085;http://localhost:5194",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

ComputerHardwareStore/VendorClient/VendorClient.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/VendorClient/VendorClient.http

@@ -0,0 +1,6 @@
+@VendorClient_HostAddress = http://localhost:5194
+
+GET {{VendorClient_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

ComputerHardwareStore/VendorClient/Views/Home/AddBuildToPurchase.cshtml

@@ -0,0 +1,29 @@
+@{
+	ViewData["Title"] = "AddBuildToPurchase";
+}
+<div class="text-center mb-5">
+	<h2 class="display-4">Добавить сборку в покупку</h2>
+</div>
+<form method="post">
+	<div class="row mb-5">
+		<div class="col-4">Покупка:</div>
+		<div class="col-8 ">
+			<select id="purchaseId" name="purchaseId" class="form-control" asp-items="@(new SelectList(@ViewBag.Purchases,"Id", "Date"))"></select>
+		</div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-4">Сборка:</div>
+		<div class="col-8">
+			<select id="productId" name="productId" class="form-control" asp-items="@(new SelectList(@ViewBag.Products,"Id", "ProductName"))"></select>
+		</div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-4">Количество:</div>
+		<div class="col-8">
+			<input type="text" name="count" id="count" />
+		</div>
+	</div>
+	<div class="col-4">
+		<input type="submit" value="Добавить" class="btn btn-success" />
+	</div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/BuildCreate.cshtml

@@ -0,0 +1,23 @@
+@{
+	ViewData["Title"] = "BuildCreate";
+}
+<div class="text-center">
+	<h2 class="display-4 mb-5">Создать сборку</h2>
+</div>
+<form method="post">
+	<div class="row mb-5">
+		<div class="col-4">Название:</div>
+		<div class="col-8"><input type="number" id="name" name="name" /></div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-4">Цена:</div>
+		<div class="col-8"><input type="text" id="cost" name="cost" /></div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-8">
+		</div>
+		<div class="col-4">
+			<input type="submit" value="Создать" class="btn btn-success" />
+		</div>
+	</div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/BuildDelete.cshtml

@@ -0,0 +1,17 @@
+@{
+	ViewData["Title"] = "BuildDelete";
+}
+<div class="text-center">
+	<h2 class="display-4">Удалить сборку</h2>
+</div>
+<form method="post">
+	<div class="row">
+		<div class="col-4">Сборка:</div>
+		<div class="col-8">
+			<select id="build" name="build" class="form-control" asp-items="@(new SelectList(@ViewBag.Builds,"Id", "Name"))"></select>
+		</div>
+	</div>
+	<div class="col-4">
+		<input type="submit" value="Удалить" class="btn btn-danger" />
+	</div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/BuildUpdate.cshtml

@@ -0,0 +1,44 @@
+@{
+	ViewData["Title"] = "BuildUpdate";
+}
+<div class="text-center">
+	<h2 class="display-4 mb-5">Обновить сборку</h2>
+</div>
+<form method="post">
+	<div class="row  mb-3">
+		<div class="col-4">Сборка:</div>
+		<div class="col-8">
+			<select id="build" name="build" class="form-control" asp-items="@(new SelectList(@ViewBag.Builds,"Id", "Name"))"></select>
+		</div>
+	</div>
+	<div class="row  mb-3">
+		<div class="col-4">Название:</div>
+		<div class="col-8"><input type="text" id="name" name="name" /></div>
+	</div>
+	<div class="row  mb-3">
+		<div class="col-4">Цена:</div>
+		<div class="col-8"><input type="number" id="cost" name="cost" /></div>
+	</div>
+	<div class="text-center ">
+		<input type="submit" value="Обновить" class="btn btn-success ps-5 pe-5" />
+	</div>
+</form>
+<<script>
+	 $('#build').on('change', function () {
+		 getData();
+	 });
+
+	 function getData() {
+		 var buildId = $('#build').val();
+		 var buildData = @Html.Raw(Json.Serialize(ViewBag.Builds));
+		 var selectedBuild = buildData.find(function (build) {
+			 return build.id == buildId;
+		 });
+
+		 if (selectedBuild) {
+			 $("#text").val(selectedBuild.address);
+			 $("#cost").val(selectedBuild.cost);
+		 }
+	 }
+
+</script>

ComputerHardwareStore/VendorClient/Views/Home/Builds.cshtml

@@ -0,0 +1,54 @@
+@using ComputerHardwareStoreContracts.ViewModels
+@model List<BuildViewModel>
+@{
+	ViewData["Title"] = "Builds";
+}
+<div class="text-center">
+	<h1 class="display-4">Сборки</h1>
+</div>
+<div class="text-center">
+	@{
+		if (Model == null)
+		{
+			<h3 class="display-4">Войдите!</h3>
+			return;
+		}
+		<p>
+			<a class="text-decoration-none me-3 text-black h5" asp-action="BuildCreate">Создать сборку</a>
+			<a class="text-decoration-none me-3 text-black h5" asp-action="BuildUpdate">Изменить сборку</a>
+			<a class="text-decoration-none text-black h5" asp-action="BuildDelete">Удаление магазина</a>
+		</p>
+
+		<table class="table">
+			<thead>
+				<tr>
+					<th>
+						Номер
+					</th>
+					<th>
+						Название
+					</th>
+					<th>
+						Цена
+					</th>
+				</tr>
+			</thead>
+			<tbody>
+				@foreach (var build in Model)
+				{
+					<tr>
+						<td>
+							@Html.DisplayFor(modelItem => build.Id)
+						</td>
+						<td>
+							@Html.DisplayFor(modelItem => build.Name)
+						</td>
+						<td>
+							@Html.DisplayFor(modelItem => build.Price)
+						</td>
+					</tr>
+				}
+			</tbody>
+		</table>
+	}
+</div>

ComputerHardwareStore/VendorClient/Views/Home/CommentCreate.cshtml

@@ -0,0 +1,29 @@
+@{
+	ViewData["Title"] = "CommentCreate";
+}
+<div class="text-center">
+	<h2 class="display-4 mb-5">Создать комментарий</h2>
+</div>
+<form method="post">
+	<div class="row mb-5">
+		<div class="col-4">Заголовок:</div>
+		<div class="col-8"><input type="number" id="title" name="title" /></div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-4">Текст:</div>
+		<div class="col-8"><input type="text" id="text" name="text" /></div>
+	</div>
+	<div class="row  mb-5">
+		<div class="col-4">Сборка:</div>
+		<div class="col-8">
+			<select id="build" name="build" class="form-control" asp-items="@(new SelectList(@ViewBag.Builds,"Id", "Name"))"></select>
+		</div>
+	</div>
+	<div class="row mb-5">
+		<div class="col-8">
+		</div>
+		<div class="col-4">
+			<input type="submit" value="Создать" class="btn btn-success" />
+		</div>
+	</div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/CommentDelete.cshtml

@@ -0,0 +1,17 @@
+@{
+	ViewData["Title"] = "CommentDelete";
+}
+<div class="text-center">
+	<h2 class="display-4">Удалить комментарий</h2>
+</div>
+<form method="post">
+	<div class="row">
+		<div class="col-4">Комментарий:</div>
+		<div class="col-8">
+			<select id="comment" name="comment" class="form-control" asp-items="@(new SelectList(@ViewBag.Comments,"Id", "Text"))"></select>
+		</div>
+	</div>
+	<div class="col-4">
+		<input type="submit" value="Удалить" class="btn btn-danger" />
+	</div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/CommentUpdate.cshtml

@@ -0,0 +1,52 @@
+@{
+	ViewData["Title"] = "CommentUpdate";
+}
+<div class="text-center">
+	<h2 class="display-4 mb-5">Обновить комметрарий</h2>
+</div>
+<form method="post">
+	<div class="row  mb-3">
+		<div class="col-4">Комментарий:</div>
+		<div class="col-8">
+			<select id="comment" name="comment" class="form-control" asp-items="@(new SelectList(@ViewBag.Comments,"Id", "Text"))"></select>
+		</div>
+	</div>
+	<div class="row  mb-3">
+		<div class="col-4">Заголовок:</div>
+		<div class="col-8"><input type="text" id="title" name="title" /></div>
+	</div>
+	<div class="row  mb-3">
+		<div class="col-4">Текст:</div>
+		<div class="col-8"><input type="text" id="text" name="text" /></div>
+	</div>
+	<div class="row  mb-3">
+		<div class="col-4">Сборка:</div>
+		<div class="col-8">
+			<select id="build" name="build" class="form-control" asp-items="@(new SelectList(@ViewBag.Builds,"Id", "Name"))"></select>
+		</div>
+	</div>
+	<div class="text-center ">
+		<input type="submit" value="Обновить" class="btn btn-success ps-5 pe-5" />
+	</div>
+</form>
+<<script>
+	 $('#comment').on('change', function () {
+		 getData();
+	 });
+
+	 function getData() {
+		 var commentId = $('#comment').val();
+		 var commentData = @Html.Raw(Json.Serialize(ViewBag.Comments));
+		 var selectedComment = commentData.find(function (comment) {
+			 return comment.id == commentId;
+		 });
+
+		 if (selectedComment) {
+			 $("#title").val(selectedComment.title);
+			 $("#text").val(selectedComment.text);
+			 $("#build").val(selectedComment.buildId).change(); // <!-- в работоспособности не уверен -->
+		 }
+	 }
+
+</script>
+

ComputerHardwareStore/VendorClient/Views/Home/Comments.cshtml

@@ -0,0 +1,51 @@
+@using ComputerHardwareStoreContracts.ViewModels
+@model List<CommentViewModel>
+@{
+	ViewData["Title"] = "Comments";
+}
+<div class="text-center">
+	<h1 class="display-4">Комментарии</h1>
+</div>
+<div class="text-center">
+	@{
+		if (Model == null)
+		{
+			<h3 class="display-4">Войди кому говорят!</h3>
+			return;
+		}
+		<p>
+			<a class="text-decoration-none me-3 text-black h5" asp-action="CommentCreate">Создать комментарий</a>
+			<a class="text-decoration-none me-3 text-black h5" asp-action="CommentUpdate">изменить коммментарий</a>
+			<a class="text-decoration-none text-black h5" asp-action="CommentDelete">Удалить комментарий</a>
+		</p>
+
+		<table class="table">
+			<thead>
+				<tr>
+					<th>
+						Номер
+					</th>
+					<th>
+						Заголовок
+					</th>
+					<th>
+						Текст
+					</th>
+				</tr>
+			</thead>
+			<tbody>
+				@foreach (var comment in Model)
+				{
+					<tr>
+						<td>
+							@Html.DisplayFor(modelItem => comment.Id)
+						</td>
+						<td>
+							@Html.DisplayFor(modelItem => comment.Text)
+						</td>
+					</tr>
+				}
+			</tbody>
+		</table>
+	}
+</div>

ComputerHardwareStore/VendorClient/Views/Home/Enter.cshtml

@@ -0,0 +1,20 @@
+@{
+    ViewData["Title"] = "Enter";
+}
+<div class="text-center">
+    <h2 class="display-4">Вход в приложение</h2>
+</div>
+<form method="post">
+    <div class="row">
+        <div class="col-4">Логин:</div>
+        <div class="col-8"><input type="text" name="login" /></div>
+    </div>
+    <div class="row">
+        <div class="col-4">Пароль:</div>
+        <div class="col-8"><input type="password" name="password" /></div>
+    </div>
+    <div class="row">
+        <div class="col-8"></div>
+        <div class="col-4"><input type="submit" value="Войти" class="btn btnprimary" /></div>
+    </div>
+</form>

ComputerHardwareStore/VendorClient/Views/Home/Index.cshtml

@@ -0,0 +1,7 @@
+@{
+    ViewData["Title"] = "Home Page";
+}
+
+<div class="text-center">
+    <img src="./Images/Logo.jpg" alt="logo">
+</div>