сделал

TravelCompany/TravelCompany.sln

@@ -13,7 +13,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyBusinessLogic"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyListImplement", "TravelCompanyListImplement\TravelCompanyListImplement.csproj", "{46AEB3CA-9FB8-444A-9145-B274C5FBEF6B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelCompanyFileImplement", "TravelCompanyFileImplement\TravelCompanyFileImplement.csproj", "{3684BE6E-B9D1-450E-B450-FCE08421C87B}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyFileImplement", "TravelCompanyFileImplement\TravelCompanyFileImplement.csproj", "{3684BE6E-B9D1-450E-B450-FCE08421C87B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelCompanyDatabaseImplement", "TravelCompanyDatabaseImplement\TravelCompanyDatabaseImplement.csproj", "{1232CA3D-F5FE-4BD6-88E9-719F822E605B}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -45,6 +47,10 @@ Global
 		{3684BE6E-B9D1-450E-B450-FCE08421C87B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{3684BE6E-B9D1-450E-B450-FCE08421C87B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{3684BE6E-B9D1-450E-B450-FCE08421C87B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1232CA3D-F5FE-4BD6-88E9-719F822E605B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1232CA3D-F5FE-4BD6-88E9-719F822E605B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1232CA3D-F5FE-4BD6-88E9-719F822E605B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1232CA3D-F5FE-4BD6-88E9-719F822E605B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

TravelCompany/TravelCompany/Program.cs

@@ -1,7 +1,7 @@
 using TravelCompanyContracts.BusinessLogicsContracts;
 using TravelCompanyBusinessLogic.BusinessLogic;
 using TravelCompanyContracts.StoragesContracts;
-using TravelCompanyFileImplement.Implements;
+using TravelCompanyDatabaseImplement.Implements;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;

TravelCompany/TravelCompany/TravelCompanyView.csproj

@@ -2,13 +2,17 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
@@ -22,6 +26,7 @@
   <ItemGroup>
     <ProjectReference Include="..\TravelCompanyBusinessLogic\TravelCompanyBusinessLogic.csproj" />
     <ProjectReference Include="..\TravelCompanyContracts\TravelCompanyContracts.csproj" />
+    <ProjectReference Include="..\TravelCompanyDatabaseImplement\TravelCompanyDatabaseImplement.csproj" />
     <ProjectReference Include="..\TravelCompanyFileImplement\TravelCompanyFileImplement.csproj" />
     <ProjectReference Include="..\TravelCompanyListImplement\TravelCompanyListImplement.csproj" />
   </ItemGroup>

TravelCompany/TravelCompanyDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,91 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new TravelCompanyDataBase();
+            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 TravelCompanyDataBase();
+            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 TravelCompanyDataBase();
+            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 TravelCompanyDataBase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            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 TravelCompanyDataBase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+
+
+}

TravelCompany/TravelCompanyDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,99 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new TravelCompanyDataBase();
+            return context.Orders
+            .Select(x => AccessTravelStorage(x.GetViewModel))
+           .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new TravelCompanyDataBase();
+            return context.Orders
+            .Where(x => x.Id == model.Id)
+           .Select(x => AccessTravelStorage(x.GetViewModel))
+           .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new TravelCompanyDataBase();
+            return AccessTravelStorage(context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new TravelCompanyDataBase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return AccessTravelStorage(newOrder.GetViewModel);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            var order = context.Orders.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return AccessTravelStorage(order.GetViewModel);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return AccessTravelStorage(element.GetViewModel);
+            }
+            return null;
+        }
+
+        public static OrderViewModel AccessTravelStorage(OrderViewModel model)
+        {
+            if (model == null)
+                return null;
+            using var context = new TravelCompanyDataBase();
+            foreach (var Travel in context.Travels)
+            {
+                if (Travel.Id == model.TravelId)
+                {
+                    model.TravelName = Travel.TravelName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Implements/TravelStorage.cs

@@ -0,0 +1,110 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class TravelStorage : ITravelStorage
+    {
+        public List<TravelViewModel> GetFullList()
+        {
+            using var context = new TravelCompanyDataBase();
+            return context.Travels
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<TravelViewModel> GetFilteredList(TravelSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.TravelName))
+            {
+                return new();
+            }
+            using var context = new TravelCompanyDataBase();
+            return context.Travels.Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .Where(x => x.TravelName.Contains(model.TravelName))
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public TravelViewModel? GetElement(TravelSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.TravelName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new TravelCompanyDataBase();
+            return context.Travels
+             .Include(x => x.Components)
+             .ThenInclude(x => x.Component)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.TravelName) &&
+            x.TravelName == model.TravelName) ||
+            (model.Id.HasValue && x.Id ==
+            model.Id))
+            ?.GetViewModel;
+        }
+        public TravelViewModel? Insert(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            var newTravel = Travel.Create(context, model);
+            if (newTravel == null)
+            {
+                return null;
+            }
+            context.Travels.Add(newTravel);
+            context.SaveChanges();
+            return newTravel.GetViewModel;
+        }
+        public TravelViewModel? Update(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var Travel = context.Travels.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (Travel == null)
+                {
+                    return null;
+                }
+                Travel.Update(model);
+                context.SaveChanges();
+                Travel.UpdateComponents(context, model);
+                transaction.Commit();
+                return Travel.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public TravelViewModel? Delete(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDataBase();
+            var element = context.Travels
+            .Include(x => x.Components)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Travels.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
+

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20240308202100_InitialCreate.Designer.cs

@@ -0,0 +1,169 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using TravelCompanyDatabaseImplement;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(TravelCompanyDataBase))]
+    [Migration("20240308202100_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("TravelName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Travels");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("TravelComponents");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelComponent", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Component", "Component")
+                        .WithMany("TravelComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany("Components")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("TravelComponents");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20240308202100_InitialCreate.cs

@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.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: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComponentName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Travels",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TravelName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Travels", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    TravelId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Travels_TravelId",
+                        column: x => x.TravelId,
+                        principalTable: "Travels",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TravelComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TravelId = table.Column<int>(type: "int", nullable: false),
+                    ComponentId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TravelComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TravelComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_TravelComponents_Travels_TravelId",
+                        column: x => x.TravelId,
+                        principalTable: "Travels",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_TravelId",
+                table: "Orders",
+                column: "TravelId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TravelComponents_ComponentId",
+                table: "TravelComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TravelComponents_TravelId",
+                table: "TravelComponents",
+                column: "TravelId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "TravelComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Travels");
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/TravelCompanyDataBaseModelSnapshot.cs

@@ -0,0 +1,166 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using TravelCompanyDatabaseImplement;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(TravelCompanyDataBase))]
+    partial class TravelCompanyDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("TravelName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Travels");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("TravelComponents");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelComponent", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Component", "Component")
+                        .WithMany("TravelComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany("Components")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("TravelComponents");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Models/Component.cs

@@ -0,0 +1,63 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.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 TravelCompanyDatabaseImplement.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<TravelComponent> TravelComponents { 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
+        };
+    }
+}
+

TravelCompany/TravelCompanyDatabaseImplement/Models/IceCream.cs

@@ -0,0 +1,103 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class Travel : ITravelModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string TravelName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _TravelComponents =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> TravelComponents
+        {
+            get
+            {
+                if (_TravelComponents == null)
+                {
+                    _TravelComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _TravelComponents;
+            }
+        }
+        [ForeignKey("TravelId")]
+        public virtual List<TravelComponent> Components { get; set; } = new();
+        [ForeignKey("TravelId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Travel Create(TravelCompanyDataBase context,
+       TravelBindingModel model)
+        {
+            return new Travel()
+            {
+                Id = model.Id,
+                TravelName = model.TravelName,
+                Price = model.Price,
+                Components = model.TravelComponents.Select(x => new
+               TravelComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(TravelBindingModel model)
+        {
+            TravelName = model.TravelName;
+            Price = model.Price;
+        }
+        public TravelViewModel GetViewModel => new()
+        {
+            Id = Id,
+            TravelName = TravelName,
+            Price = Price,
+            TravelComponents = TravelComponents
+        };
+        public void UpdateComponents(TravelCompanyDataBase context,
+       TravelBindingModel model)
+        {
+            var TravelComponents = context.TravelComponents.Where(rec =>
+           rec.TravelId == model.Id).ToList();
+            if (TravelComponents != null && TravelComponents.Count > 0)
+            {
+                context.TravelComponents.RemoveRange(TravelComponents.Where(rec
+=> !model.TravelComponents.ContainsKey(rec.ComponentId)));
+
+                context.SaveChanges();
+                foreach (var updateComponent in TravelComponents)
+                {
+                    updateComponent.Count =
+                   model.TravelComponents[updateComponent.ComponentId].Item2;
+                    model.TravelComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var Travel = context.Travels.First(x => x.Id == Id);
+            foreach (var pc in model.TravelComponents)
+            {
+                context.TravelComponents.Add(new TravelComponent
+                {
+                    Travel = Travel,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _TravelComponents = null;
+        }
+    }
+}
+

TravelCompany/TravelCompanyDatabaseImplement/Models/IceCreamComponent.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 TravelCompanyDatabaseImplement.Models
+{
+    public class TravelComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int TravelId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Travel Travel { get; set; } = new();
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Models/Order.cs

@@ -0,0 +1,69 @@
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.Enums;
+using TravelCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; }
+        [Required]
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        [Required]
+        public int TravelId { get; private set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                TravelId = model.TravelId,
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            TravelId = TravelId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+        };
+
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/TravelCompanyDataBase.cs

@@ -0,0 +1,29 @@
+using TravelCompanyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TravelCompanyDatabaseImplement
+{
+    public class TravelCompanyDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-D5A5OOG\GOLDFEST;Initial Catalog=TravelCompanyDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Models.Component> Components { set; get; }
+        public virtual DbSet<Travel> Travels { set; get; }
+        public virtual DbSet<TravelComponent> TravelComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/TravelCompanyDatabaseImplement.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\TravelCompanyContracts\TravelCompanyContracts.csproj" />
+  </ItemGroup>
+
+</Project>