Бд, логика done, надеюсь работает)))

KopLab1/Forms/Forms.csproj

@@ -8,8 +8,17 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.10">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\FormLibrary\FormLibrary.csproj" />
+    <ProjectReference Include="..\InternetShopOrdersDatabaseImplement\InternetShopOrdersDatabaseImplement.csproj" />
   </ItemGroup>
 
 </Project>

KopLab1/InetShopDataModels/IId.cs

@@ -0,0 +1,7 @@
+namespace InternetShopOrdersDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}

KopLab1/InetShopDataModels/InternetShopOrdersDataModels.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

KopLab1/InetShopDataModels/Models/ICityModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersDataModels.Models
+{
+    public interface ICityModel : IId
+    {
+        string Name { get; }
+    }
+}

KopLab1/InetShopDataModels/Models/IOrderModel.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersDataModels.Models
+{
+    public interface IOrderModel : IId
+    {
+        // Полное имя заказчика
+        string Fullname { get; }
+
+        // Метки движения заказа (не более 6)
+        List<string> OrderStatusHistory { get; }
+
+        // Город назначения
+        int DestinationCityId { get; }
+
+        // Дата получения заказа 
+        DateTime ExpectedDeliveryDate { get; }
+    }
+}

KopLab1/InternetShopOrdersBusinessLogic/BusinessLogics/CityLogic.cs

@@ -0,0 +1,87 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.BusinessLogicContracts;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.StorageContracts;
+using InternetShopOrdersContracts.ViewModels;
+
+namespace InternetShopOrdersBusinessLogic.BusinessLogics
+{
+    public class CityLogic : ICityLogic
+    {
+        private readonly ICityStorage _selectedItemStorage;
+
+        public CityLogic(ICityStorage selectedItemStorage)
+        {
+            _selectedItemStorage = selectedItemStorage;
+        }
+
+        public List<CityViewModel>? ReadList(CitySearchModel? model)
+        {
+            var list = model == null ? _selectedItemStorage.GetFullList() : _selectedItemStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public CityViewModel? ReadElement(CitySearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _selectedItemStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(CityBindingModel model)
+        {
+            CheckModel(model);
+            if (_selectedItemStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CityBindingModel model)
+        {
+            CheckModel(model);
+            if (_selectedItemStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(CityBindingModel model)
+        {
+            CheckModel(model, false);
+            if (_selectedItemStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(CityBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия города", nameof(model.Name));
+            }
+        }
+    }
+}

KopLab1/InternetShopOrdersBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -0,0 +1,88 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.BusinessLogicContracts;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.StorageContracts;
+using InternetShopOrdersContracts.ViewModels;
+
+namespace InternetShopOrdersBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly IOrderStorage _orderStorage;
+
+        public OrderLogic(IOrderStorage orderStorage)
+        {
+            _orderStorage = orderStorage;
+        }
+
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        } 
+
+        public OrderViewModel? ReadElement(OrderSearchModel? model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _orderStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }       
+
+        public bool Create(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (_orderStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (_orderStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(OrderBindingModel model)
+        {
+            CheckModel(model, false);
+            if (_orderStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Fullname))
+            {
+                throw new ArgumentNullException("Нет ФИО заказчика", nameof(model.Fullname));
+            }
+        }
+    }
+}

KopLab1/InternetShopOrdersBusinessLogic/InternetShopOrdersBusinessLogic.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\InetShopDataModels\InternetShopOrdersDataModels.csproj" />
+    <ProjectReference Include="..\InternetShopOrdersContracts\InternetShopOrdersContracts.csproj" />
+    <ProjectReference Include="..\InternetShopOrdersDatabaseImplement\InternetShopOrdersDatabaseImplement.csproj" />
+  </ItemGroup>
+
+</Project>

KopLab1/InternetShopOrdersContracts/BindingModels/CityBindingModel.cs

@@ -0,0 +1,15 @@
+using InternetShopOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.BindingModels
+{
+    public class CityBindingModel : ICityModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = String.Empty;
+    }
+}

KopLab1/InternetShopOrdersContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using InternetShopOrdersDataModels.Models;
+
+namespace InternetShopOrdersContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public string Fullname { get; set; } = string.Empty;
+        public List<string> OrderStatusHistory { get; set; } = new List<string>();
+        public int DestinationCityId { get; set; }
+        public ICityModel DestinationCity { get; set; }
+        public DateTime ExpectedDeliveryDate { get; set; }
+    }
+}

KopLab1/InternetShopOrdersContracts/BusinessLogicContracts/ICityLogic.cs

@@ -0,0 +1,20 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.BusinessLogicContracts
+{
+    public interface ICityLogic
+    {
+        List<CityViewModel>? ReadList(CitySearchModel? model);
+        CityViewModel? ReadElement(CitySearchModel model);
+        bool Create(CityBindingModel model);
+        bool Update(CityBindingModel model);
+        bool Delete(CityBindingModel model);
+    }
+}

KopLab1/InternetShopOrdersContracts/BusinessLogicContracts/IOrderLogic.cs

@@ -0,0 +1,20 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.BusinessLogicContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        OrderViewModel? ReadElement(OrderSearchModel model);
+        bool Create(OrderBindingModel model);
+        bool Update(OrderBindingModel model);
+        bool Delete(OrderBindingModel model);
+    }
+}

KopLab1/InternetShopOrdersContracts/InternetShopOrdersContracts.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\InetShopDataModels\InternetShopOrdersDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

KopLab1/InternetShopOrdersContracts/SearchModels/CitySearchModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.SearchModels
+{
+    public class CitySearchModel
+    {
+        public int? Id { get; set; }
+    }
+}

KopLab1/InternetShopOrdersContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.SearchModels
+{
+    public class OrderSearchModel
+    {
+        public int? Id { get; set; }
+    }
+}

KopLab1/InternetShopOrdersContracts/StorageContracts/ICityStorage.cs

@@ -0,0 +1,21 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.StorageContracts
+{
+    public interface ICityStorage
+    {
+        List<CityViewModel> GetFullList();
+        List<CityViewModel> GetFilteredList(CitySearchModel model);
+        CityViewModel? GetElement(CitySearchModel model);
+        CityViewModel? Insert(CityBindingModel model);
+        CityViewModel? Update(CityBindingModel model);
+        CityViewModel? Delete(CityBindingModel model);
+    }
+}

KopLab1/InternetShopOrdersContracts/StorageContracts/IOrderStorage.cs

@@ -0,0 +1,21 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.StorageContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

KopLab1/InternetShopOrdersContracts/ViewModels/CityViewModel.cs

@@ -0,0 +1,17 @@
+using InternetShopOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.ViewModels
+{
+    public class CityViewModel : ICityModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название")]
+        public string Name { get; set; } = string.Empty;
+    }
+}

KopLab1/InternetShopOrdersContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,28 @@
+using InternetShopOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        public int Id { get; set; }
+        
+        [DisplayName("ФИО заказчика")]
+        public string Fullname { get; set; } = string.Empty;
+
+        [DisplayName("История заказа")]
+        public List<string> OrderStatusHistory { get; set; }
+
+        public int DestinationCityId { get; set; }
+        [DisplayName("Город назначения")]
+        public string DestinationCityName { get; set; }
+
+        [DisplayName("Дата получения заказа")]
+        public DateTime ExpectedDeliveryDate { get; set; }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Implements/CityStorage.cs

@@ -0,0 +1,79 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.StorageContracts;
+using InternetShopOrdersContracts.ViewModels;
+using InternetShopOrdersDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace InternetShopOrdersDatabaseImplement.Implements
+{
+    public class CityStorage : ICityStorage
+    {
+        public List<CityViewModel> GetFullList()
+        {
+            using var context = new OrdersDatabase();
+            return context.Cities
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<CityViewModel> GetFilteredList(CitySearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new OrdersDatabase();
+            return context.Cities
+            .Where(x => x.Id == model.Id)
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public CityViewModel? GetElement(CitySearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new OrdersDatabase();
+            return context.Cities
+            .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+            ?.GetViewModel;
+        }
+        public CityViewModel? Insert(CityBindingModel model)
+        {
+            var newSelectedItem = Cities.Create(model);
+            if (newSelectedItem == null)
+            {
+                return null;
+            }
+            using var context = new OrdersDatabase();
+            context.Cities.Add(newSelectedItem);
+            context.SaveChanges();
+            return newSelectedItem.GetViewModel;
+        }
+        public CityViewModel? Update(CityBindingModel model)
+        {
+            using var context = new OrdersDatabase();
+            var component = context.Cities.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public CityViewModel? Delete(CityBindingModel model)
+        {
+            using var context = new OrdersDatabase();
+            var element = context.Cities.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Cities.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,87 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.SearchModels;
+using InternetShopOrdersContracts.StorageContracts;
+using InternetShopOrdersContracts.ViewModels;
+using InternetShopOrdersDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System.Security.Principal;
+
+namespace InternetShopOrdersDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new OrdersDatabase();
+            return context.Orders
+            .Include(x => x.DestinationCity)
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new OrdersDatabase();
+            return context.Orders
+            .Include(x => x.DestinationCity)
+            .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 OrdersDatabase();
+            return context.Orders
+            .Include(x => x.DestinationCity)
+            .FirstOrDefault(x => x.Id == model.Id)
+            ?.GetViewModel;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new OrdersDatabase();
+            var newOrder = Orders.Create(context, model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new OrdersDatabase();
+            var Order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (Order == null)
+            {
+                return null;
+            }
+            Order.Update(model, context);
+            context.SaveChanges();
+            return Order.GetViewModel;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new OrdersDatabase();
+            var element = context.Orders
+                .Include(x => x.DestinationCity)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/InternetShopOrdersDatabaseImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.10">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\InetShopDataModels\InternetShopOrdersDataModels.csproj" />
+    <ProjectReference Include="..\InternetShopOrdersContracts\InternetShopOrdersContracts.csproj" />
+  </ItemGroup>
+
+</Project>

KopLab1/InternetShopOrdersDatabaseImplement/Migrations/20241027193729_InitialCreate.Designer.cs

@@ -0,0 +1,88 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using InternetShopOrdersDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace InternetShopOrdersDatabaseImplement.Migrations
+{
+    [DbContext(typeof(OrdersDatabase))]
+    [Migration("20241027193729_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Cities", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Cities");
+                });
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Orders", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DestinationCityId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("ExpectedDeliveryDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Fullname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<List<string>>("OrderStatusHistory")
+                        .IsRequired()
+                        .HasColumnType("text[]");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DestinationCityId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Orders", b =>
+                {
+                    b.HasOne("InternetShopOrdersDatabaseImplement.Models.Cities", "DestinationCity")
+                        .WithMany()
+                        .HasForeignKey("DestinationCityId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("DestinationCity");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Migrations/20241027193729_InitialCreate.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace InternetShopOrdersDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Cities",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Cities", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Fullname = table.Column<string>(type: "text", nullable: false),
+                    OrderStatusHistory = table.Column<List<string>>(type: "text[]", nullable: false),
+                    DestinationCityId = table.Column<int>(type: "integer", nullable: false),
+                    ExpectedDeliveryDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Cities_DestinationCityId",
+                        column: x => x.DestinationCityId,
+                        principalTable: "Cities",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_DestinationCityId",
+                table: "Orders",
+                column: "DestinationCityId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "Cities");
+        }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Migrations/OrdersDatabaseModelSnapshot.cs

@@ -0,0 +1,85 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using InternetShopOrdersDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace InternetShopOrdersDatabaseImplement.Migrations
+{
+    [DbContext(typeof(OrdersDatabase))]
+    partial class OrdersDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Cities", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Cities");
+                });
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Orders", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DestinationCityId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("ExpectedDeliveryDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Fullname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<List<string>>("OrderStatusHistory")
+                        .IsRequired()
+                        .HasColumnType("text[]");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DestinationCityId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("InternetShopOrdersDatabaseImplement.Models.Orders", b =>
+                {
+                    b.HasOne("InternetShopOrdersDatabaseImplement.Models.Cities", "DestinationCity")
+                        .WithMany()
+                        .HasForeignKey("DestinationCityId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("DestinationCity");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Models/Cities.cs

@@ -0,0 +1,54 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.ViewModels;
+using InternetShopOrdersDataModels.Models;
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersDatabaseImplement.Models
+{
+    public class Cities : ICityModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+
+        public static Cities? Create(CityBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Cities()
+            {
+                Id = model.Id,
+                Name = model.Name,
+            };
+        }
+        public static Cities? Create(CityViewModel? model)
+        {
+            return new Cities()
+            {
+                Id = model.Id,
+                Name = model.Name,
+            };
+        }
+        public void Update(CityBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = model.Name;
+        }
+        public CityViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+        };
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/Models/Orders.cs

@@ -0,0 +1,66 @@
+using InternetShopOrdersContracts.BindingModels;
+using InternetShopOrdersContracts.ViewModels;
+using InternetShopOrdersDataModels.Models;
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersDatabaseImplement.Models
+{
+    public class Orders : IOrderModel
+    {
+        [Required]
+        public string Fullname { get; set; } = string.Empty;
+
+        // Метки движения заказа (не более 6) 
+        public List<string> OrderStatusHistory { get; set; } = new List<string>();
+
+        public int Id { get; private set; }
+
+        public int DestinationCityId { get; set; }
+        public virtual Cities DestinationCity { get; set; } = new();
+
+        public DateTime ExpectedDeliveryDate { get; set; }
+
+        public static Orders? Create(OrdersDatabase context, OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Orders()
+            {
+                Id = model.Id,
+                Fullname = model.Fullname,
+                DestinationCity = context.Cities.First(x => x.Id == model.Id),
+                ExpectedDeliveryDate = model.ExpectedDeliveryDate
+            };
+        }
+
+        public void Update(OrderBindingModel? model, OrdersDatabase context)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Fullname = model.Fullname;
+            DestinationCity = context.Cities.First(x => x.Id == model.Id);
+            OrderStatusHistory = model.OrderStatusHistory.ToList();
+            ExpectedDeliveryDate = model.ExpectedDeliveryDate;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Fullname = Fullname,
+            DestinationCityId = DestinationCity.Id,
+            DestinationCityName = DestinationCity.Name,
+            OrderStatusHistory = OrderStatusHistory,
+            ExpectedDeliveryDate = ExpectedDeliveryDate,
+        };
+    }
+}

KopLab1/InternetShopOrdersDatabaseImplement/OrdersDatabase.cs

@@ -0,0 +1,20 @@
+using InternetShopOrdersDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Principal;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace InternetShopOrdersDatabaseImplement
+{
+    public class OrdersDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+            => optionsBuilder.UseNpgsql("Host=localhost;Database=InternetShopOrdersDB;Username=postgres;Password=postgres");
+
+        public virtual DbSet<Orders> Orders { set; get; }
+        public virtual DbSet<Cities> Cities { set; get; }
+    }
+}

KopLab1/KopLab1.sln

@@ -3,9 +3,17 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.11.35222.181
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FormLibrary", "FormLibrary\FormLibrary.csproj", "{E840E4D9-B195-449A-AB24-ECAAE2655D58}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FormLibrary", "FormLibrary\FormLibrary.csproj", "{E840E4D9-B195-449A-AB24-ECAAE2655D58}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Forms", "Forms\Forms.csproj", "{83F3C50D-D872-48B6-8932-1D5B7E0A40F0}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Forms", "Forms\Forms.csproj", "{83F3C50D-D872-48B6-8932-1D5B7E0A40F0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InternetShopOrdersDataModels", "InetShopDataModels\InternetShopOrdersDataModels.csproj", "{FC789ABE-4687-4521-871C-72E1130C6BE6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InternetShopOrdersDatabaseImplement", "InternetShopOrdersDatabaseImplement\InternetShopOrdersDatabaseImplement.csproj", "{AE2BEC62-31AA-4043-B1EC-C4B3F674A4AF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InternetShopOrdersContracts", "InternetShopOrdersContracts\InternetShopOrdersContracts.csproj", "{21E46342-A4FE-437D-BE39-9950919DECDC}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InternetShopOrdersBusinessLogic", "InternetShopOrdersBusinessLogic\InternetShopOrdersBusinessLogic.csproj", "{148CAD37-ECDC-4B97-9AD0-1D0990B1B8BE}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -21,6 +29,22 @@ Global
 		{83F3C50D-D872-48B6-8932-1D5B7E0A40F0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{83F3C50D-D872-48B6-8932-1D5B7E0A40F0}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{83F3C50D-D872-48B6-8932-1D5B7E0A40F0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FC789ABE-4687-4521-871C-72E1130C6BE6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FC789ABE-4687-4521-871C-72E1130C6BE6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FC789ABE-4687-4521-871C-72E1130C6BE6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FC789ABE-4687-4521-871C-72E1130C6BE6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AE2BEC62-31AA-4043-B1EC-C4B3F674A4AF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AE2BEC62-31AA-4043-B1EC-C4B3F674A4AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AE2BEC62-31AA-4043-B1EC-C4B3F674A4AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AE2BEC62-31AA-4043-B1EC-C4B3F674A4AF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{21E46342-A4FE-437D-BE39-9950919DECDC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{21E46342-A4FE-437D-BE39-9950919DECDC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{21E46342-A4FE-437D-BE39-9950919DECDC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{21E46342-A4FE-437D-BE39-9950919DECDC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{148CAD37-ECDC-4B97-9AD0-1D0990B1B8BE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{148CAD37-ECDC-4B97-9AD0-1D0990B1B8BE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{148CAD37-ECDC-4B97-9AD0-1D0990B1B8BE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{148CAD37-ECDC-4B97-9AD0-1D0990B1B8BE}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE