+

ComputerHardwareStore/ComputerHardwareStore.sln

@@ -11,7 +11,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreContra
 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", "{09A57BE9-A653-4AAD-9FB2-1F8974F294CD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreDatabaseImplement", "ComputerHardwareStoreDatabaseImplement\ComputerHardwareStoreDatabaseImplement.csproj", "{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -35,10 +35,6 @@ Global
 		{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
-		{09A57BE9-A653-4AAD-9FB2-1F8974F294CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{09A57BE9-A653-4AAD-9FB2-1F8974F294CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{09A57BE9-A653-4AAD-9FB2-1F8974F294CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{09A57BE9-A653-4AAD-9FB2-1F8974F294CD}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/CommentLogic.cs

@@ -92,9 +92,9 @@ namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
             {
                 return;
             }
-            if (string.IsNullOrEmpty(model.Date))
+            if (string.IsNullOrEmpty(model.Text))
             {
-                throw new ArgumentNullException("Нет даты у комментария", nameof(model.Date));
+                throw new ArgumentNullException("Нет текста комментария", nameof(model.Text));
             }
         }
     }

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/PurchaseLogic.cs

@@ -92,10 +92,6 @@ namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
             {
                 return;
             }
-            if (model.DateCreate == null) // TODO чего блин, всмысле нет
-            {
-                throw new ArgumentNullException("Нет даты создания покупки", nameof(model.Date));
-            }
             if (model.Cost <= 0)
             {
                 throw new ArgumentNullException("Стоимость покупки должна быть больше 0", nameof(model.Cost));

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs

@@ -8,6 +8,7 @@ namespace ComputerHardwareStoreContracts.BindingModels
         public int VendorId { get; set; }
         public double Cost { get; set; }
         public DateTime DateCreate { get; set; }
+        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/BusinessLogicsContracts/IStoreKeeperLogic.cs

@@ -4,12 +4,12 @@ using ComputerHardwareStoreContracts.ViewModels;
 
 namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
 {
-	public interface IStoreKeeperLogic
+    public interface IStoreKeeperLogic
     {
-		List<StoreKeeperViewModel>? ReadList(StoreKeeperSearchModel? model);
-		StoreKeeperViewModel? ReadElement(StoreKeeperSearchModel model);
-		bool Create(StoreKeeperBindingModel model);
-		bool Update(StoreKeeperBindingModel model);
-		bool Delete(StoreKeeperBindingModel model);
-	}
+        List<StoreKeeperViewModel>? ReadList(StoreKeeperSearchModel? model);
+        StoreKeeperViewModel? ReadElement(StoreKeeperSearchModel model);
+        bool Create(StoreKeeperBindingModel model);
+        bool Update(StoreKeeperBindingModel model);
+        bool Delete(StoreKeeperBindingModel 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 +3,7 @@
     public class BuildSearchModel
     {
         public int? Id { get; set; }
+        public int VendorId { 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

@@ -4,5 +4,6 @@
     {
         public int? Id { get; set; }
         public string? Name { get; set; }
+        public int? StoreKeeperId { get; set; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs

@@ -4,5 +4,7 @@
     {
         public int? Id { get; set; }
         public string? Name { get; set; }
+        public int VendorId { get; set; }
+        public List<int>? Builds { 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

@@ -4,6 +4,5 @@
     {
         public int? Id { get; set; }
         public string? Login { get; set; }
-        public string? Password { 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)> PurchaseBuilds { get; set; } = new();
 
-        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new();
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new(); 
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IPurchaseModel.cs

@@ -5,6 +5,7 @@
         int VendorId { get; }
         double Cost { get; }
         DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
         public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; }
         public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; }
     }

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/ComputerHardwareStoreDBContext.cs

@@ -28,6 +28,7 @@ namespace ComputerHardwareStoreDatabaseImplement
         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; }
@@ -38,5 +39,6 @@ namespace ComputerHardwareStoreDatabaseImplement
         public virtual DbSet<Purchase> Purchases { set; get; }
         public virtual DbSet<PurchaseBuild> PurchaseBuilds { set; get; }
         public virtual DbSet<PurchaseProduct> PurchaseProducts { set; get; }
+        public virtual DbSet<Vendor> Vendors { set; get; }
     }
 }

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/BuildStorage.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 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
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.VendorId )
+                .Where(b => b.Name.Contains(model.Name))
+                .Include(b => b.Comments)
+                .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

@@ -12,7 +12,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         {
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .Select(x => x.GetViewModel)
+                .Select(c => c.GetViewModel)
                 .ToList();
         }
 
@@ -20,12 +20,12 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         {
             if (string.IsNullOrEmpty(model.Name))
             {
-                return new ();
+                return new();
             }
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .Where(x => x.Name.Contains(model.Name))
-                .Select(x => x.GetViewModel)
+                .Where(c => c.Name.Contains(model.Name))
+                .Select(c => c.GetViewModel)
                 .ToList();
         }
 
@@ -37,10 +37,9 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
             }
             using var context = new ComputerHardwareStoreDBContext();
             return context.Components
-                .FirstOrDefault(x =>
-                (!string.IsNullOrEmpty(model.Name)
-                && x.Name == model.Name)
-                || (model.Id.HasValue && x.Id == model.Id))
+                .FirstOrDefault(c =>
+                (!string.IsNullOrEmpty(model.Name) && c .Name == model.Name) ||
+                (model.Id.HasValue && c.Id == model.Id))
                 ?.GetViewModel;
         }
 
@@ -59,27 +58,27 @@ namespace ComputerHardwareStoreDatabaseImplement.Implements
         public ComponentViewModel? Update(ComponentBindingModel model)
         {
             using var context = new ComputerHardwareStoreDBContext();
-            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
-            if (component == null)
+            var element = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
             {
                 return null;
             }
-            component.Update(model);
+            element.Update(model);
             context.SaveChanges();
-            return component.GetViewModel;
+            return element.GetViewModel;
         }
 
         public ComponentViewModel? Delete(ComponentBindingModel model)
         {
             using var context = new ComputerHardwareStoreDBContext();
-            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
-            if (element != null)
+            var element = context.Components.FirstOrDefault(c => c.Id == model.Id);
+            if (element == null)
             {
-                context.Components.Remove(element);
-                context.SaveChanges();
-                return element.GetViewModel;
+                return 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 +1,102 @@
+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.Name.Contains(model.Name))
+                .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/Vendor.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/Models/Build.cs

@@ -1,11 +1,9 @@
-
-using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BindingModels;
 using ComputerHardwareStoreContracts.ViewModels;
 using ComputerHardwareStoreDataModels.Models;
 using Microsoft.EntityFrameworkCore.Metadata.Internal;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Runtime.InteropServices;
 
 namespace ComputerHardwareStoreDatabaseImplement.Models
 {
@@ -16,7 +14,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
         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
@@ -77,7 +75,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
             Price = model.Price;
         }
 
-        public BuildViewModel GetViewModel() => new()
+        public BuildViewModel GetViewModel => new()
         {
             Id = Id,
             Name = Name,

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Component.cs

@@ -14,13 +14,13 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
         [Required]
         public double Cost { get; set; }
         [Required]
-        public virtual StoreKeeper? StoreKeeper { get; set; }
+        public virtual StoreKeeper? StoreKeeperЗЛ { get; set; }
         [NotMapped]
-        IStoreKeeperModel IComponentModel.StoreKeeper => throw new NotImplementedException();
+        public IStoreKeeperModel? StoreKeeper { get; set; }
 
         [ForeignKey("ComponentId")]
         public virtual List<ProductComponent> ProductComponents { get; set; } = new();
-        public static Component? Create(ComputerHardwareStoreDBContext context, ComponentBindingModel model)
+        public static Component? Create(ComponentBindingModel model)
         {
             if (model == null)
             {
@@ -31,7 +31,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
                 Id = model.Id,
                 Name = model.Name,
                 Cost = model.Cost,
-                StoreKeeper = context.StoreKeepers.First(x => x.Id == model.StoreKeeper.Id)
+                StoreKeeper = model.StoreKeeper
             };
         }
         public void Update (ComponentBindingModel model)

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Purchase.cs

@@ -17,6 +17,7 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
         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