AutoWorkshop.sln

@@ -13,7 +13,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopBusinessLogic",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopListImplement", "AutoWorkshopImplement\AutoWorkshopListImplement.csproj", "{B564F5E8-2F14-4816-8481-1F9649F1F414}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AutoWorkshopFileImplement", "AutoWorkshopFileImplement\AutoWorkshopFileImplement.csproj", "{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopFileImplement", "AutoWorkshopFileImplement\AutoWorkshopFileImplement.csproj", "{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AutoWorkshopDatabaseImplement", "AutoWorkshopDatabaseImplement\AutoWorkshopDatabaseImplement.csproj", "{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -45,6 +47,10 @@ Global
 		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Release|Any CPU.Build.0 = Release|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

AutoWorkshopDatabaseImplement/AutoWorkshopDatabase.cs

@@ -0,0 +1,33 @@
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement
+{
+    public class AutoWorkshopDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder OptionsBuilder)
+        {
+            if (OptionsBuilder.IsConfigured == false)
+            {
+                OptionsBuilder.UseNpgsql(@"Host=localhost;Port=5000;Database=AutoWorkshop_Hard;Username=postgres;Password=admin");
+            }
+            
+            base.OnConfiguring(OptionsBuilder);
+            
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+        }
+        
+        public virtual DbSet<Component> Components { set; get; }
+        
+        public virtual DbSet<Repair> Repairs { set; get; }
+        
+        public virtual DbSet<RepairComponent> RepairComponents { set; get; }
+        
+        public virtual DbSet<Order> Orders { set; get; }
+
+        public virtual DbSet<Shop> Shops { get; set; }
+        
+        public virtual DbSet<ShopRepair> ShopRepairs { get; set; }
+    }
+}

AutoWorkshopDatabaseImplement/AutoWorkshopDatabaseImplement.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.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="netcore-psql-util" Version="1.2.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.11" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AutoWorkshopContracts\AutoWorkshopContracts.csproj" />
+    <ProjectReference Include="..\AutoWorkshopDataModels\AutoWorkshopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

AutoWorkshopDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,82 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();            
+            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 AutoWorkshopDatabase();
+            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 AutoWorkshopDatabase();
+            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 AutoWorkshopDatabase();
+            Context.Components.Add(NewComponent);
+            Context.SaveChanges();
+            
+            return NewComponent.GetViewModel;
+        }
+        
+        public ComponentViewModel? Update(ComponentBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            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 AutoWorkshopDatabase();
+            var Component = Context.Components.FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Component == null)
+                return null;
+
+            Context.Components.Remove(Component);
+            Context.SaveChanges();
+            return Component.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,94 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();            
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel Model)
+        {
+            if (!Model.Id.HasValue)
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .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 AutoWorkshopDatabase();
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .FirstOrDefault(x => Model.Id.HasValue && x.Id == Model.Id)?
+                .GetViewModel;
+        }
+        
+        public OrderViewModel? Insert(OrderBindingModel Model)
+        {            
+            if (Model == null)
+                return null;            
+
+            var NewOrder = Order.Create(Model);            
+            if (NewOrder == null)
+                return null;
+
+            using var Context = new AutoWorkshopDatabase();
+
+            Context.Orders.Add(NewOrder);
+            Context.SaveChanges();
+            
+            return Context.Orders.Include(x => x.Repair).FirstOrDefault(x => x.Id == NewOrder.Id)?.GetViewModel;
+        }
+        
+        public OrderViewModel? Update(OrderBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var Order = Context.Orders.FirstOrDefault(x => x.Id == Model.Id);
+            if (Order == null)
+                return null;
+
+            Order.Update(Model);
+            Context.SaveChanges();
+            
+            return Context.Orders.Include(x => x.Repair).FirstOrDefault(x => x.Id == Model.Id)?.GetViewModel;
+        }
+        
+        public OrderViewModel? Delete(OrderBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            var Order = Context.Orders.FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Order == null)
+                return null;
+            
+            Context.Orders.Remove(Order);
+            Context.SaveChanges();
+            
+            return Order.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/RepairStorage.cs

@@ -0,0 +1,109 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class RepairStorage : IRepairStorage
+    {
+        public List<RepairViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.RepairName))
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .Where(x => x.RepairName.Contains(Model.RepairName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+       
+        public RepairViewModel? GetElement(RepairSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.RepairName) && !Model.Id.HasValue)
+                return null;
+            
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(Model.RepairName) && x.RepairName == Model.RepairName) ||
+                (Model.Id.HasValue && x.Id == Model.Id))?
+                .GetViewModel;
+        }
+        
+        public RepairViewModel? Insert(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var NewRepair = Repair.Create(Context, Model);
+            if (NewRepair == null)
+                return null;
+
+            Context.Repairs.Add(NewRepair);
+            Context.SaveChanges();
+            
+            return NewRepair.GetViewModel;
+        }
+        
+        public RepairViewModel? Update(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            using var Transaction = Context.Database.BeginTransaction();            
+            try
+            {
+                var Repair = Context.Repairs.FirstOrDefault(rec => rec.Id == Model.Id);
+                
+                if (Repair == null)
+                    return null;
+
+                Repair.Update(Model);
+                Context.SaveChanges();
+                Repair.UpdateComponents(Context, Model);
+                
+                Transaction.Commit();
+                return Repair.GetViewModel;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+        public RepairViewModel? Delete(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var Repair = Context.Repairs
+                .Include(x => x.Components)
+                .FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Repair == null)
+                return null;
+
+            Context.Repairs.Remove(Repair);
+            Context.SaveChanges();
+            return Repair.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,221 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName))
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .Where(x => x.ShopName.Contains(Model.ShopName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName) && !Model.Id.HasValue)
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(Model.ShopName) && x.ShopName == Model.ShopName) ||
+                    (Model.Id.HasValue && x.Id == Model.Id))?
+                .GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var NewShop = Shop.Create(Context, Model);
+            if (NewShop == null)
+                return null;
+
+            Context.Shops.Add(NewShop);
+            Context.SaveChanges();
+            
+            return NewShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            using var Transaction = Context.Database.BeginTransaction();
+            try
+            {
+                var Shop = Context.Shops.FirstOrDefault(x => x.Id == Model.Id);
+                
+                if (Shop == null)
+                    return null;
+
+                Shop.Update(Model);
+                Context.SaveChanges();
+                Shop.UpdateRepairs(Context, Model);
+                
+                Transaction.Commit();
+                return Shop.GetViewModel;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            var Shop = Context.Shops
+                .Include(x => x.Repairs)
+                .FirstOrDefault(x => x.Id == Model.Id);
+
+            if (Shop == null)
+                return null;
+
+            Context.Shops.Remove(Shop);
+            Context.SaveChanges();
+            
+            return Shop.GetViewModel;
+        }        
+
+        public bool Sell(SupplySearchModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            var Transaction = Context.Database.BeginTransaction();
+            
+            try
+            {
+                var ShopsWithDesiredRepair = Context.Shops
+                    .Include(x => x.Repairs)
+                    .ThenInclude(x => x.Repair)
+                    .ToList()
+                    .Where(x => x.ShopRepairs.ContainsKey(Model.RepairId.Value))
+                    .OrderByDescending(x => x.ShopRepairs[Model.RepairId.Value].Item2)
+                    .ToList();
+
+                foreach (var Shop in ShopsWithDesiredRepair)
+                {
+                    int Slack = Model.Count.Value - Shop.ShopRepairs[Model.RepairId.Value].Item2;
+                    
+                    if (Slack > 0)
+                    {
+                        Shop.ShopRepairs.Remove(Model.RepairId.Value);                        
+                        Shop.RepairsDictionatyUpdate(Context);
+                        Context.SaveChanges();
+                        
+                        Model.Count = Slack;
+                    }
+                    else
+                    {
+                        if (Slack == 0)
+                        {
+                            Shop.ShopRepairs.Remove(Model.RepairId.Value);
+                        }
+                        else
+                        {
+                            var RepairAndCount = Shop.ShopRepairs[Model.RepairId.Value];
+                            RepairAndCount.Item2 = -Slack;
+                            Shop.ShopRepairs[Model.RepairId.Value] = RepairAndCount;
+                        }
+
+                        Shop.RepairsDictionatyUpdate(Context);
+                        Transaction.Commit();
+                        
+                        return true;
+                    }
+                }
+                
+                Transaction.Rollback();
+                return false;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+
+		public bool RestockingShops(SupplyBindingModel Model)
+		{
+			using var Context = new AutoWorkshopDatabase();
+			var Transaction = Context.Database.BeginTransaction();
+
+			var Shops = Context.Shops
+				.Include(x => x.Repairs)
+				.ThenInclude(x => x.Repair)
+				.ToList()
+				.Where(x => x.RepairsMaxCount > x.ShopRepairs
+					.Select(x => x.Value.Item2).Sum())
+				.ToList();
+
+			try
+			{
+				foreach (Shop Shop in Shops)
+				{
+					int FreeSpaceNum = Shop.RepairsMaxCount - Shop.ShopRepairs.Select(x => x.Value.Item2).Sum();
+					
+                    int Refill = Math.Min(FreeSpaceNum, Model.Count);
+					Model.Count -= Refill;
+
+					if (Shop.ShopRepairs.ContainsKey(Model.RepairId))
+					{
+						var RepairAndCount = Shop.ShopRepairs[Model.RepairId];
+						RepairAndCount.Item2 += Refill;
+						Shop.ShopRepairs[Model.RepairId] = RepairAndCount;
+					}
+					else
+					{
+						var Repair = Context.Repairs.First(x => x.Id == Model.RepairId);
+						Shop.ShopRepairs.Add(Model.RepairId, (Repair, Refill));
+					}
+
+					Shop.RepairsDictionatyUpdate(Context);
+
+					if (Model.Count == 0)
+					{
+						Transaction.Commit();
+						return true;
+					}
+				}
+
+				Transaction.Rollback();
+				return false;
+			}
+			catch
+			{
+				Transaction.Rollback();
+				throw;
+			}
+		}
+	}
+}

AutoWorkshopDatabaseImplement/Migrations/20240417061857_Shops.Designer.cs

@@ -0,0 +1,248 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    [Migration("20240417061857_Shops")]
+    partial class Shops
+    {
+        /// <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("AutoWorkshopDatabaseImplement.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("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", 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>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany()
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240417061857_Shops.cs

@@ -0,0 +1,185 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Shops : 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: "Repairs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Repairs", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ShopName = table.Column<string>(type: "text", nullable: false),
+                    Address = table.Column<string>(type: "text", nullable: false),
+                    OpeningDate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    RepairsMaxCount = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = table.Column<int>(type: "integer", 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 without time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp without time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "RepairComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = 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_RepairComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopRepairs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = table.Column<int>(type: "integer", nullable: false),
+                    ShopId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopRepairs", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopRepairs_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopRepairs_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_RepairId",
+                table: "Orders",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_ComponentId",
+                table: "RepairComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_RepairId",
+                table: "RepairComponents",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopRepairs_RepairId",
+                table: "ShopRepairs",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopRepairs_ShopId",
+                table: "ShopRepairs",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "RepairComponents");
+
+            migrationBuilder.DropTable(
+                name: "ShopRepairs");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Repairs");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240505173724_Fix Shop-Repair relationship.Designer.cs

@@ -0,0 +1,250 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    [Migration("20240505173724_Fix Shop-Repair relationship")]
+    partial class FixShopRepairrelationship
+    {
+        /// <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("AutoWorkshopDatabaseImplement.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("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", 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>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Shops")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240505173724_Fix Shop-Repair relationship.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class FixShopRepairrelationship : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/AutoWorkshopDatabaseModelSnapshot.cs

@@ -0,0 +1,247 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    partial class AutoWorkshopDatabaseModelSnapshot : 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("AutoWorkshopDatabaseImplement.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("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", 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>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Shops")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/Component.cs

@@ -0,0 +1,61 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.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<RepairComponent> RepairComponents { 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
+        };
+    }
+}

AutoWorkshopDatabaseImplement/Models/Order.cs

@@ -0,0 +1,70 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Enums;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        
+        [Required]
+        public int RepairId { get; private set; }
+
+        public virtual Repair Repair { get; set; }
+        
+        [Required]
+        public int Count { get; private set; }
+        
+        [Required]
+        public double Sum { get; private set; }
+        
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Undefined;
+        
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        
+        public DateTime? DateImplement { get; private set; }
+        
+        public static Order? Create(OrderBindingModel Model)
+        {
+            if (Model is null)
+                return null;
+
+            return new Order()
+            {
+                Id = Model.Id,
+                RepairId = Model.RepairId,
+                Count = Model.Count,
+                Sum = Model.Sum,
+                Status = Model.Status,
+                DateCreate = Model.DateCreate,
+                DateImplement = Model.DateImplement,
+            };
+        }
+        
+        public void Update(OrderBindingModel Model)
+        {
+            if (Model is null)
+                return;
+
+            Status = Model.Status;
+            DateImplement = Model.DateImplement;
+        }
+        
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairId = RepairId,
+            RepairName = Repair.RepairName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

AutoWorkshopDatabaseImplement/Models/Repair.cs

@@ -0,0 +1,109 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; set; }
+        
+        [Required]
+        public string RepairName { get; set; } = string.Empty;
+        
+        [Required]
+        public double Price { get; set; }
+        
+        private Dictionary<int, (IComponentModel, int)>? _repairComponents = null;
+        
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get
+            {
+                if (_repairComponents == null)
+                {
+                    _repairComponents = Components.ToDictionary(RepComp => RepComp.ComponentId, RepComp => 
+                        (RepComp.Component as IComponentModel, RepComp.Count));
+                }
+                
+                return _repairComponents;
+            }
+        }
+        
+        [ForeignKey("RepairId")]
+        public virtual List<RepairComponent> Components { get; set; } = new();
+        
+        [ForeignKey("RepairId")]
+        public virtual List<Order> Orders { get; set; } = new();
+
+        [ForeignKey("RepairId")]
+        public virtual List<ShopRepair> Shops { get; set; } = new();
+
+        public static Repair Create(AutoWorkshopDatabase Context, RepairBindingModel Model)
+        {
+            return new Repair()
+            {
+                Id = Model.Id,
+                RepairName = Model.RepairName,
+                Price = Model.Price,
+                Components = Model.RepairComponents.Select(x => new RepairComponent
+                {
+                    Component = Context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        
+        public void Update(RepairBindingModel Model)
+        {
+            RepairName = Model.RepairName;
+            Price = Model.Price;
+        }
+        
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+        
+        public void UpdateComponents(AutoWorkshopDatabase Context, RepairBindingModel Model)
+        {
+            var RepairComponents = Context.RepairComponents.Where(rec => rec.RepairId == Model.Id).ToList();
+            
+            if (RepairComponents != null && RepairComponents.Count > 0)
+            {
+                Context.RepairComponents.RemoveRange(RepairComponents.Where(rec => !Model.RepairComponents.ContainsKey(rec.ComponentId)));
+                Context.SaveChanges();
+
+                foreach (var ComponentToUpdate in RepairComponents)
+                {
+                    ComponentToUpdate.Count = Model.RepairComponents[ComponentToUpdate.ComponentId].Item2;
+                    Model.RepairComponents.Remove(ComponentToUpdate.ComponentId);
+                }
+
+                Context.SaveChanges();
+            }
+
+            var Repair = Context.Repairs.First(x => x.Id == Id);
+            
+            foreach (var RepairComponent in Model.RepairComponents)
+            {
+                Context.RepairComponents.Add(new RepairComponent
+                {
+                    Repair = Repair,
+                    Component = Context.Components.First(x => x.Id == RepairComponent.Key),
+                    Count = RepairComponent.Value.Item2
+                });
+                
+                Context.SaveChanges();
+            }
+            
+            _repairComponents = null;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/RepairComponent.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class RepairComponent
+    {
+        public int Id { get; set; }
+        
+        [Required]
+        public int RepairId { get; set; }
+        
+        [Required]
+        public int ComponentId { get; set; }
+        
+        [Required]
+        public int Count { get; set; }
+        
+        public virtual Component Component { get; set; } = new();
+        
+        public virtual Repair Repair { get; set; } = new();
+    }
+}

AutoWorkshopDatabaseImplement/Models/Shop.cs

@@ -0,0 +1,131 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string ShopName { get; set; } = string.Empty;
+
+        [Required]
+        public string Address { get; set; } = string.Empty;
+
+        [Required]
+        public DateTime OpeningDate { get; set; }
+
+        [Required]
+        public int RepairsMaxCount { get; set; }
+
+        [ForeignKey("ShopId")]
+        public List<ShopRepair> Repairs { get; set; } = new();
+
+        private Dictionary<int, (IRepairModel, int)>? _shopRepairs = null;
+
+        [NotMapped]
+        public Dictionary<int, (IRepairModel, int)> ShopRepairs
+        {
+            get
+            {
+                if (_shopRepairs == null)
+                {
+                    if (_shopRepairs == null)
+                    {
+                        _shopRepairs = Repairs.ToDictionary(ShopRep => ShopRep.RepairId, ShopRep => (ShopRep.Repair as IRepairModel, ShopRep.Count));
+                    }                    
+                    return _shopRepairs;
+                }
+                
+                return _shopRepairs;
+            }
+        }
+
+        public static Shop Create(AutoWorkshopDatabase Context, ShopBindingModel Model)
+        {
+            return new Shop()
+            {
+                Id = Model.Id,
+                ShopName = Model.ShopName,
+                Address = Model.Address,
+                OpeningDate = Model.OpeningDate,
+                Repairs = Model.ShopRepairs.Select(x => new ShopRepair
+                {
+                    Repair = Context.Repairs.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList(),
+                RepairsMaxCount = Model.RepairsMaxCount
+            };
+        }
+
+        public void Update(ShopBindingModel Model)
+        {
+            ShopName = Model.ShopName;
+            Address = Model.Address;
+            OpeningDate = Model.OpeningDate;
+            RepairsMaxCount = Model.RepairsMaxCount;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            OpeningDate = OpeningDate,
+            ShopRepairs = ShopRepairs,
+            RepairsMaxCount = RepairsMaxCount
+        };
+
+        public void UpdateRepairs(AutoWorkshopDatabase Context, ShopBindingModel Model)
+        {
+            var ShopRepairs = Context.ShopRepairs
+                .Where(rec => rec.ShopId == Model.Id)
+                .ToList();
+            
+            if (ShopRepairs != null && ShopRepairs.Count > 0)
+            {
+                Context.ShopRepairs.RemoveRange(ShopRepairs.Where(rec => !Model.ShopRepairs.ContainsKey(rec.RepairId)));
+                Context.SaveChanges();
+
+				ShopRepairs = Context.ShopRepairs.Where(rec => rec.ShopId == Model.Id).ToList();
+
+				foreach (var RepairToUpdate in ShopRepairs)
+                {
+                    RepairToUpdate.Count = Model.ShopRepairs[RepairToUpdate.RepairId].Item2;
+                    Model.ShopRepairs.Remove(RepairToUpdate.RepairId);
+                }
+                
+                Context.SaveChanges();
+            }
+            
+            var Shop = Context.Shops.First(x => x.Id == Id);
+            
+            foreach (var ShopRepair in Model.ShopRepairs)
+            {
+                Context.ShopRepairs.Add(new ShopRepair
+                {
+                    Shop = Shop,
+                    Repair = Context.Repairs.First(x => x.Id == ShopRepair.Key),
+                    Count = ShopRepair.Value.Item2
+                });
+                
+                Context.SaveChanges();
+            }
+            
+            _shopRepairs = null;
+        }
+
+        public void RepairsDictionatyUpdate(AutoWorkshopDatabase Context)
+        {
+            UpdateRepairs(Context, new ShopBindingModel
+            {
+                Id = Id,
+                ShopRepairs = ShopRepairs
+            });
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/ShopRepair.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class ShopRepair
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int RepairId { get; set; }
+
+        [Required]
+        public int ShopId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Shop Shop { get; set; } = new();
+
+        public virtual Repair Repair { get; set; } = new();
+    }
+}

AutoWorkshopView/AutoWorkshopView.csproj

@@ -10,8 +10,11 @@
 
   <ItemGroup>
 	<ProjectReference Include="..\AutoWorkshopBusinessLogic\AutoWorkshopBusinessLogic.csproj" />
-	<ProjectReference Include="..\AutoWorkshopFileImplement\AutoWorkshopFileImplement.csproj" />
-	<ProjectReference Include="..\AutoWorkshopImplement\AutoWorkshopListImplement.csproj" />
+	<ProjectReference Include="..\AutoWorkshopDatabaseImplement\AutoWorkshopDatabaseImplement.csproj" />
+	<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+	  <PrivateAssets>all</PrivateAssets>
+	  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+	</PackageReference>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageReference Include="NLog" Version="5.2.8" />
     <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />

AutoWorkshopView/Program.cs

@@ -2,7 +2,7 @@ using AutoWorkshopBusinessLogic.BusinessLogics;
 using AutoWorkshopContracts.BusinessLogicContracts;
 using AutoWorkshopContracts.BusinessLogicsContracts;
 using AutoWorkshopContracts.StoragesContracts;
-using AutoWorkshopFileImplement.Implements;
+using AutoWorkshopDatabaseImplement.Implements;
 using AutoWorkshopView.Forms;
 using AutoWorkshopView.Forms.Shop;
 using Microsoft.Extensions.DependencyInjection;