Готовая 3 лаба

PlumbingRepair/PlumbingRepair.sln

@@ -13,7 +13,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairBusinessLogic
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairListImplement", "PlumbingRepairListImplement\PlumbingRepairListImplement.csproj", "{E89CA82F-2FEA-4235-93A2-E5A412D0116F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PlumbingRepairFileImplement", "PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj", "{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairFileImplement", "PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj", "{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PlumbingRepairDataBaseImplement", "PlumbingRepairDataBaseImplement\PlumbingRepairDataBaseImplement.csproj", "{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -45,6 +47,10 @@ Global
 		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

PlumbingRepair/PlumbingRepair/FormStore.cs

@@ -56,7 +56,7 @@ namespace PlumbingRepairView
                     Id = _id ?? 0,
                     StoreName = NameTextBox.Text,
                     StoreAdress = AdressTextBox.Text,
-                    OpeningDate = OpeningDatePicker.Value.Date,
+                    OpeningDate = DateTime.SpecifyKind(OpeningDatePicker.Value.Date, DateTimeKind.Utc),
                     WorkMaxCount = (int)VolumeNumericUpDown.Value,
                     StoreWorks = _listStores
                 };

PlumbingRepair/PlumbingRepair/PlumbingRepairView.csproj

@@ -9,12 +9,21 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj" />
     <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataBaseImplement\PlumbingRepairDataBaseImplement.csproj" />
     <ProjectReference Include="..\PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj" />
     <ProjectReference Include="..\PlumbingRepairListImplement\PlumbingRepairListImplement.csproj" />
   </ItemGroup>

PlumbingRepair/PlumbingRepair/Program.cs

@@ -1,59 +1,59 @@
-using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.BusinessLogicsContracts;
-using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.StoragesContracts;
-using PlumbingRepairFileImplement.Implements;
+using PlumbingRepairDataBaseImplement.Implements;
-using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging;
-using NLog.Extensions.Logging;
+using NLog.Extensions.Logging;
 using PlumbingRepairBusinessLogic.BusinessLogics;
 
-namespace PlumbingRepairView
+namespace PlumbingRepairView
-{
+{
-    internal static class Program
+    internal static class Program
-    {
+    {
-        private static ServiceProvider? _serviceProvider;
+        private static ServiceProvider? _serviceProvider;
-        public static ServiceProvider? ServiceProvider => _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
-        /// <summary>
+        /// <summary>
-        ///  The main entry point for the application.
+        ///  The main entry point for the application.
-        /// </summary>
+        /// </summary>
-        [STAThread]
+        [STAThread]
-        static void Main()
+        static void Main()
-        {
+        {
-            // To customize application configuration such as set high DPI settings or default font,
+            // To customize application configuration such as set high DPI settings or default font,
-            // see https://aka.ms/applicationconfiguration.
+            // see https://aka.ms/applicationconfiguration.
-            ApplicationConfiguration.Initialize();
+            ApplicationConfiguration.Initialize();
-            var services = new ServiceCollection();
+            var services = new ServiceCollection();
-            ConfigureServices(services);
+            ConfigureServices(services);
-            _serviceProvider = services.BuildServiceProvider();
+            _serviceProvider = services.BuildServiceProvider();
-            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
+            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
-        }
+        }
-        private static void ConfigureServices(ServiceCollection services)
+        private static void ConfigureServices(ServiceCollection services)
-        {
+        {
-            services.AddLogging(option =>
+            services.AddLogging(option =>
-            {
+            {
-                option.SetMinimumLevel(LogLevel.Information);
+                option.SetMinimumLevel(LogLevel.Information);
-                option.AddNLog("nlog.config");
+                option.AddNLog("nlog.config");
-            });
+            });
-            services.AddTransient<IComponentStorage, ComponentStorage>();
+            services.AddTransient<IComponentStorage, ComponentStorage>();
-            services.AddTransient<IOrderStorage, OrderStorage>();
+            services.AddTransient<IOrderStorage, OrderStorage>();
-            services.AddTransient<IWorkStorage, WorkStorage>();
+            services.AddTransient<IWorkStorage, WorkStorage>();
             services.AddTransient<IStoreStorage, StoreStorage>();
-
+
-            services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IComponentLogic, ComponentLogic>();
-            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
-            services.AddTransient<IWorkLogic, WorkLogic>();
+            services.AddTransient<IWorkLogic, WorkLogic>();
             services.AddTransient<IStoreLogic, StoreLogic>();
-
+
-            services.AddTransient<FormMain>();
+            services.AddTransient<FormMain>();
-            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponent>();
-            services.AddTransient<FormComponents>();
+            services.AddTransient<FormComponents>();
-            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormCreateOrder>();
-            services.AddTransient<FormWork>();
+            services.AddTransient<FormWork>();
-            services.AddTransient<FormWorkComponent>();
+            services.AddTransient<FormWorkComponent>();
-            services.AddTransient<FormWorks>();
+            services.AddTransient<FormWorks>();
             services.AddTransient<FormStores>();
             services.AddTransient<FormStore>();
             services.AddTransient<FormStoreReplenishment>();
             services.AddTransient<FormSellWork>();
-        }
+        }
-    }
+    }
 }

PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -93,7 +93,7 @@ namespace PlumbingRepairBusinessLogic.BusinessLogics
 
             if (model.Status == OrderStatus.Готов)
             {
-                model.DateImplement = DateTime.Now;
+                model.DateImplement = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
                 var work = _workStorage.GetElement(new() { Id = viewModel.WorkId });
 
                 if (work == null)

PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/StoreLogic.cs

@@ -54,7 +54,7 @@ namespace PlumbingRepairBusinessLogic.BusinessLogics
             else
             {
                 element.StoreWorks[work.Id] = (work, quantity);
-                _logger.LogInformation("AddWork. Added {quantity} new package {package} to '{StoreName}' store", quantity, work.WorkName, element.StoreName);
+                _logger.LogInformation("AddWork. Added {quantity} new work  {work} to '{StoreName}' store", quantity, work.WorkName, element.StoreName);
             }
 
             _storeStorage.Update(new()

PlumbingRepair/PlumbingRepairContracts/BindingModels/OrderBindingModel.cs

@@ -16,7 +16,7 @@ namespace PlumbingRepairContracts.BindingModels
         public int Count { get; set; }
         public double Sum { get; set; }
         public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
-        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
         public DateTime? DateImplement { get; set; }
     }
 }

PlumbingRepair/PlumbingRepairContracts/BindingModels/StoreBindingModel.cs

@@ -12,7 +12,7 @@ namespace PlumbingRepairContracts.BindingModels
         public int Id { get; set; }
         public string StoreName { get; set; } = string.Empty;
         public string StoreAdress { get; set; } = string.Empty;
-        public DateTime OpeningDate { get; set; } = DateTime.Now;
+        public DateTime OpeningDate { get; set; }
         public Dictionary<int, (IWorkModel, int)> StoreWorks { get; set; } = new();
         public int WorkMaxCount { get; set; }
     }

PlumbingRepair/PlumbingRepairContracts/ViewModels/StoreViewModel.cs

@@ -17,7 +17,7 @@ namespace PlumbingRepairContracts.ViewModels
         [DisplayName("Адрес магазина")]
         public string StoreAdress { get; set; } = string.Empty;
         [DisplayName("Дата открытия")]
-        public DateTime OpeningDate { get; set; } = DateTime.Now;
+        public DateTime OpeningDate { get; set; }
         [DisplayName("Вместимость магазина")]
         public int WorkMaxCount { get; set; }
     }

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,97 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Components.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Components.Where(x => x.ComponentName.Contains(model.ComponentName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Components.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+
+            if (newComponent == null)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+
+            return newComponent.GetViewModel;
+        }
+
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+
+            if (component == null)
+            {
+                return null;
+            }
+
+            component.Update(model);
+            context.SaveChanges();
+
+            return component.GetViewModel;
+        }
+
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,97 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            context.SaveChanges();
+
+            return order.GetViewModel;
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/StoreStorage.cs

@@ -0,0 +1,168 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class StoreStorage : IStoreStorage
+    {
+        public StoreViewModel? Delete(StoreBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Stores
+                .Include(x => x.Works)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Stores.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public StoreViewModel? GetElement(StoreSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.StoreName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Stores
+                .Include(x => x.Works)
+                .ThenInclude(x => x.Work)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.StoreName) && x.StoreName == model.StoreName) || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public List<StoreViewModel> GetFilteredList(StoreSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.StoreName))
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Stores
+                    .Include(x => x.Works)
+                    .ThenInclude(x => x.Work)
+                    .Where(x => x.StoreName.Contains(model.StoreName))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<StoreViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+            return context.Stores
+                    .Include(x => x.Works)
+                    .ThenInclude(x => x.Work)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public StoreViewModel? Insert(StoreBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+            var newStore = Store.Create(context, model);
+            if (newStore == null)
+            {
+                return null;
+            }
+            context.Stores.Add(newStore);
+            context.SaveChanges();
+            return newStore.GetViewModel;
+        }
+
+        public bool SellWork(IWorkModel model, int quantity)
+        {
+            using var context = new PlumbingRepairDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                foreach (var store in context.Stores
+                    .Include(x => x.Works)
+                    .ThenInclude(x => x.Work)
+                    .ToList()
+                    .Where(x => x.StoreWorks.ContainsKey(model.Id)))
+                {
+                    int countInCurrentStore = store.StoreWorks[model.Id].Item2;
+                    if (countInCurrentStore <= quantity)
+                    {
+                        var elem = context.StoreWorks
+                            .Where(x => x.WorkId == model.Id)
+                            .FirstOrDefault(x => x.StoreId == store.Id);
+                        context.StoreWorks.Remove(elem);
+                        store.StoreWorks.Remove(model.Id);
+                        quantity -= countInCurrentStore;
+                    }
+                    else
+                    {
+                        store.StoreWorks[model.Id] = (store.StoreWorks[model.Id].Item1, countInCurrentStore - quantity);
+                        quantity = 0;
+                        store.UpdateWorks(context, new()
+                        {
+                            Id = store.Id,
+                            StoreWorks = store.StoreWorks,
+                        });
+                    }
+                    if (quantity == 0)
+                    {
+                        context.SaveChanges();
+                        transaction.Commit();
+                        return true;
+                    }
+                }
+                transaction.Rollback();
+                return false;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public StoreViewModel? Update(StoreBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var store = context.Stores.FirstOrDefault(rec => rec.Id == model.Id);
+                if (store == null)
+                {
+                    return null;
+                }
+                store.Update(model);
+                context.SaveChanges();
+                store.UpdateWorks(context, model);
+                transaction.Commit();
+                return store.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/WorkStorage.cs

@@ -0,0 +1,125 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+        public List<WorkViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .Where(x => x.WorkName.Contains(model.WorkName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public WorkViewModel? GetElement(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkName) && x.WorkName == model.WorkName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkViewModel? Insert(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var newWork = Work.Create(context, model);
+
+            if (newWork == null)
+            {
+                return null;
+            }
+
+            context.Works.Add(newWork);
+            context.SaveChanges();
+
+            return newWork.GetViewModel;
+        }
+
+        public WorkViewModel? Update(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            using var transaction = context.Database.BeginTransaction();
+
+            try
+            {
+                var package = context.Works.FirstOrDefault(rec => rec.Id == model.Id);
+
+                if (package == null)
+                {
+                    return null;
+                }
+
+                package.Update(model);
+                context.SaveChanges();
+                package.UpdateComponents(context, model);
+                transaction.Commit();
+
+                return package.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+
+                throw;
+            }
+        }
+
+        public WorkViewModel? Delete(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Works.Include(x => x.Components).FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Works.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/20240506071751_InitialCreate.Designer.cs

@@ -0,0 +1,252 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PlumbingRepairDataBaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDataBase))]
+    [Migration("20240506071751_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.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 with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Store", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("StoreAdress")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("StoreName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("WorkMaxCount")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Stores");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.StoreWork", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StoreId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("StoreWorks");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", 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>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Orders")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.StoreWork", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Store", "Store")
+                        .WithMany("Works")
+                        .HasForeignKey("StoreId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany()
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Store");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Store", b =>
+                {
+                    b.Navigation("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/20240506071751_InitialCreate.cs

@@ -0,0 +1,186 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ComponentName = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Stores",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    StoreName = table.Column<string>(type: "text", nullable: false),
+                    StoreAdress = table.Column<string>(type: "text", nullable: false),
+                    OpeningDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    WorkMaxCount = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Stores", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Works",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Works", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkId = table.Column<int>(type: "integer", nullable: false),
+                    WorkName = table.Column<string>(type: "text", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp with time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "StoreWorks",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkId = table.Column<int>(type: "integer", nullable: false),
+                    StoreId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StoreWorks", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_StoreWorks_Stores_StoreId",
+                        column: x => x.StoreId,
+                        principalTable: "Stores",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_StoreWorks_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "WorkComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_WorkComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_WorkId",
+                table: "Orders",
+                column: "WorkId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StoreWorks_StoreId",
+                table: "StoreWorks",
+                column: "StoreId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StoreWorks_WorkId",
+                table: "StoreWorks",
+                column: "WorkId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_ComponentId",
+                table: "WorkComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_WorkId",
+                table: "WorkComponents",
+                column: "WorkId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "StoreWorks");
+
+            migrationBuilder.DropTable(
+                name: "WorkComponents");
+
+            migrationBuilder.DropTable(
+                name: "Stores");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Works");
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/PlumbingRepairDataBaseModelSnapshot.cs

@@ -0,0 +1,249 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PlumbingRepairDataBaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDataBase))]
+    partial class PlumbingRepairDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.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 with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Store", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("StoreAdress")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("StoreName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("WorkMaxCount")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Stores");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.StoreWork", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StoreId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("StoreWorks");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", 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>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Orders")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.StoreWork", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Store", "Store")
+                        .WithMany("Works")
+                        .HasForeignKey("StoreId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany()
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Store");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Store", b =>
+                {
+                    b.Navigation("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Component.cs

@@ -0,0 +1,56 @@
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using PlumbingRepairDataModels.Models;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairContracts.BindingModels;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<WorkComponent> WorkComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Order.cs

@@ -0,0 +1,81 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int WorkId { get; private set; }
+
+        public string WorkName { get; private set; } = string.Empty;
+
+        [Required]
+        public int Count { get; private set; }
+
+        [Required]
+        public double Sum { get; private set; }
+
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public virtual Work Work { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                WorkId = model.WorkId,
+                WorkName = model.WorkName,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkId = WorkId,
+            WorkName = WorkName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Store.cs

@@ -0,0 +1,110 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Store : IStoreModel
+    {
+        [Required]
+        public string StoreName { get; private set; } = string.Empty;
+        [Required]
+        public string StoreAdress { get; private set; } = string.Empty;
+        [Required]
+        public DateTime OpeningDate { get; private set; }
+        [Required]
+        public int WorkMaxCount { get; private set; }
+
+        public int Id { get; private set; }
+
+
+        private Dictionary<int, (IWorkModel, int)> _storeWorks = null;
+        [NotMapped]
+        public Dictionary<int, (IWorkModel, int)> StoreWorks
+        {
+            get
+            {
+                if (_storeWorks == null)
+                {
+                    _storeWorks = Works
+                            .ToDictionary(recPC => recPC.WorkId, recPC => (recPC.Work as IWorkModel, recPC.Count));
+                }
+                return _storeWorks;
+            }
+        }
+
+        [ForeignKey("StoreId")]
+        public virtual List<StoreWork> Works { get; set; } = new();
+
+        public static Store Create(PlumbingRepairDataBase context, StoreBindingModel model)
+        {
+            return new Store()
+            {
+                Id = model.Id,
+                StoreName = model.StoreName,
+                StoreAdress = model.StoreAdress,
+                OpeningDate = model.OpeningDate,
+                WorkMaxCount = model.WorkMaxCount,
+                Works = model.StoreWorks.Select(x => new StoreWork
+                {
+                    Work = context.Works.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(StoreBindingModel model)
+        {
+            StoreName = model.StoreName;
+            StoreAdress = model.StoreAdress;
+            OpeningDate = model.OpeningDate;
+            WorkMaxCount = model.WorkMaxCount;
+        }
+
+        public StoreViewModel GetViewModel => new()
+        {
+            Id = Id,
+            StoreName = StoreName,
+            StoreAdress = StoreAdress,
+            OpeningDate = OpeningDate,
+            WorkMaxCount = WorkMaxCount,
+            StoreWorks = StoreWorks
+        };
+
+        public void UpdateWorks(PlumbingRepairDataBase context, StoreBindingModel model)
+        {
+            var storeWorks = context.StoreWorks.Where(rec => rec.StoreId == model.Id).ToList();
+            if (storeWorks != null && storeWorks.Count > 0)
+            {   // удалили те, которых нет в модели
+                context.StoreWorks.RemoveRange(storeWorks.Where(rec => !model.StoreWorks.ContainsKey(rec.WorkId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateWork in storeWorks)
+                {
+                    updateWork.Count = model.StoreWorks[updateWork.WorkId].Item2;
+                    model.StoreWorks.Remove(updateWork.WorkId);
+                }
+                context.SaveChanges();
+            }
+            var store = context.Stores.First(x => x.Id == Id);
+            foreach (var sw in model.StoreWorks)
+            {
+                context.StoreWorks.Add(new StoreWork
+                {
+                    Store = store,
+                    Work = context.Works.First(x => x.Id == sw.Key),
+                    Count = sw.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _storeWorks = null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/StoreWork.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class StoreWork
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int WorkId { get; set; }
+
+        [Required]
+        public int StoreId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Store Store { get; set; } = new();
+
+        public virtual Work Work { get; set; } = new();
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Work.cs

@@ -0,0 +1,101 @@
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Work : IWorkModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string WorkName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _workComponents =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get
+            {
+                if (_workComponents == null)
+                {
+                    _workComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _workComponents;
+            }
+        }
+        [ForeignKey("WorkId")]
+        public virtual List<WorkComponent> Components { get; set; } = new();
+        [ForeignKey("WorkId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Work Create(PlumbingRepairDataBase context,
+            WorkBindingModel model)
+        {
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                Components = model.WorkComponents.Select(x => new
+               WorkComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(WorkBindingModel model)
+        {
+            WorkName = model.WorkName;
+            Price = model.Price;
+        }
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+        public void UpdateComponents(PlumbingRepairDataBase context,
+            WorkBindingModel model)
+        {
+            var workComponents = context.WorkComponents.Where(rec =>
+           rec.WorkId == model.Id).ToList();
+            if (workComponents != null && workComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.WorkComponents.RemoveRange(workComponents.Where(rec
+               => !model.WorkComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in workComponents)
+                {
+                   updateComponent.Count = model.WorkComponents[updateComponent.ComponentId].Item2;
+                   model.WorkComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var work = context.Works.First(x => x.Id == Id);
+            foreach (var pc in model.WorkComponents)
+            {
+                context.WorkComponents.Add(new WorkComponent
+                {
+                    Work = work,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _workComponents = null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/WorkComponent.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 PlumbingRepairDataBaseImplement.Models
+{
+    public class WorkComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int WorkId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Work Work { get; set; } = new();
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/PlumbingRepairDataBase.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement
+{
+    public class PlumbingRepairDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+            optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=PlumbingRepairDatabaseFull;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Work> Works { set; get; }
+        public virtual DbSet<WorkComponent> WorkComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<Store> Stores { set; get; }
+        public virtual DbSet<StoreWork> StoreWorks { set; get; }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/PlumbingRepairDataBaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.11" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>