Merge branch 'main' of https://git.is.ulstu.ru/mfnefd/PIAPS_CW

BusinessLogic/BusinessLogic/SellLogic.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BusinessLogic.BusinessLogic
+{
+    internal class SellLogic
+    {
+    }
+}

Contracts/BindingModels/PurchaseBindingModel.cs

@@ -12,8 +12,8 @@ namespace Contracts.BindingModels
 	{
 		public Guid Id { get; set; }
 		public DateTime DatePurchase { get; set; }
-		public required IUser User { get; set; }
+		public Guid UserId { get; set; }
-		public required List<IProduct> Products { get; set; }
 		public PurchaseStatus Status { get; set; }
+		public Dictionary<Guid, (IProduct, int)> PurchaseProducts { get; set; } = new();
 	}
 }

Contracts/Converters/PurchaseConverter.cs

@@ -14,16 +14,16 @@ namespace Contracts.Converters
 		{
 			Id = model.Id,
 			DatePurchase = model.DatePurchase,
-			User = model.User,
+			UserId = model.UserId,
-			Products = model.Products,
+			PurchaseProducts = model.PurchaseProducts,
 		};
 
 		public static PurchaseBindingModel ToBinding(PurchaseViewModel model) => new()
 		{
 			Id = model.Id,
 			DatePurchase = model.DatePurchase,
-			User = model.User,
+			UserId = model.UserId,
-			Products = model.Products,
+            PurchaseProducts = model.PurchaseProducts,
 		};
 	}
 }

Contracts/Converters/SellConverter.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Contracts.Converters
+{
+    public class SellConverter
+    {
+
+    }
+}

Contracts/ViewModels/PurchaseViewModel.cs

@@ -12,8 +12,9 @@ namespace Contracts.ViewModels
 	{
 		public Guid Id { get; set; }
 		public DateTime DatePurchase { get; set; }
-		public required IUser User { get; set; }
+		public required Guid UserId { get; set; }
-		public required List<IProduct> Products { get; set; }
 		public PurchaseStatus Status { get; set; }
-	}
+		public Dictionary<Guid, (IProduct, int)> PurchaseProducts { get; set; } = new();
+
+    }
 }

DatabaseImplement/Database.cs

@@ -27,7 +27,8 @@ namespace DatabaseImplement
 		public virtual DbSet<Supply> Supplies { get; set; } = null!;
 		public virtual DbSet<SupplyProduct> SupplyProducts { get; set; } = null!;
 		public virtual DbSet<Supplier> Suppliers { get; set; } = null!;
-        public virtual DbSet<SupplierProduct> SupplierProducts { get; set; } = null!;
+		public virtual DbSet<SupplierProduct> SupplierProducts { get; set; } = null!;
-        public virtual DbSet<MediaFile> MediaFiles { get; set; } = null!;
+		public virtual DbSet<MediaFile> MediaFiles { get; set; } = null!;
+		public virtual DbSet<PurchaseProducts> PurchaseProducts { get; set; } = null!;
 	}
 }

DatabaseImplement/Implements/SellStorage.cs

@@ -13,8 +13,8 @@ namespace DatabaseImplement.Implements
 	{
 		public SellBindingModel? Delete(SellSearchModel model)
 		{
-			return new();
+            throw new NotImplementedException();
-		}
+        }
 
 		public SellBindingModel? GetElement(SellSearchModel model)
 		{

DatabaseImplement/Migrations/20240623130351_many-to-many.Designer.cs

@@ -0,0 +1,395 @@
+// <auto-generated />
+using System;
+using DatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20240623130351_many-to-many")]
+    partial class manytomany
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.6")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DatabaseImplement.Models.MediaFile", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Location")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("MediaFiles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Amount")
+                        .HasColumnType("integer");
+
+                    b.Property<bool>("IsBeingSold")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<double>("Rate")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DatePurchase")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("PurchaseId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Role", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Roles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DateSell")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sells");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Deals")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Suppliers");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("SupplierProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("Supplies");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplyId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplyId");
+
+                    b.ToTable("SupplyProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Birthday")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("OnlyImportantMails")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RoleId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("SecondName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany("PurchaseProducts")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany()
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supply", "Supply")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supply");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Role", "Role")
+                        .WithMany()
+                        .HasForeignKey("RoleId");
+
+                    b.Navigation("Role");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Navigation("Products");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

DatabaseImplement/Migrations/20240623130351_many-to-many.cs

@@ -0,0 +1,90 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class manytomany : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Guid>(
+                name: "UserId",
+                table: "Purchases",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.CreateTable(
+                name: "PurchaseProducts",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    PurchaseId = table.Column<Guid>(type: "uuid", nullable: false),
+                    ProductId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PurchaseProducts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PurchaseProducts_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PurchaseProducts_Purchases_PurchaseId",
+                        column: x => x.PurchaseId,
+                        principalTable: "Purchases",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Purchases_UserId",
+                table: "Purchases",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseProducts_ProductId",
+                table: "PurchaseProducts",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseProducts_PurchaseId",
+                table: "PurchaseProducts",
+                column: "PurchaseId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Purchases_Users_UserId",
+                table: "Purchases",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Purchases_Users_UserId",
+                table: "Purchases");
+
+            migrationBuilder.DropTable(
+                name: "PurchaseProducts");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Purchases_UserId",
+                table: "Purchases");
+
+            migrationBuilder.DropColumn(
+                name: "UserId",
+                table: "Purchases");
+        }
+    }
+}

DatabaseImplement/Migrations/DatabaseModelSnapshot.cs

@@ -83,11 +83,40 @@ namespace DatabaseImplement.Migrations
                     b.Property<int>("Status")
                         .HasColumnType("integer");
 
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
                     b.HasKey("Id");
 
+                    b.HasIndex("UserId");
+
                     b.ToTable("Purchases");
                 });
 
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("PurchaseId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.Role", b =>
                 {
                     b.Property<Guid>("Id")
@@ -250,6 +279,36 @@ namespace DatabaseImplement.Migrations
                     b.ToTable("Users");
                 });
 
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany("PurchaseProducts")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
                 {
                     b.HasOne("DatabaseImplement.Models.Product", "Product")
@@ -308,6 +367,16 @@ namespace DatabaseImplement.Migrations
                     b.Navigation("Role");
                 });
 
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Products");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
                 {
                     b.Navigation("Products");

DatabaseImplement/Models/Product.cs

@@ -4,6 +4,7 @@ using DataModels.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;
@@ -25,7 +26,8 @@ namespace DatabaseImplement.Models
 		public bool IsBeingSold { get; set; }
 		[Required]
 		public int Amount { get; set; }
-
+		[ForeignKey("ProductId")]
+		public virtual List<PurchaseProducts> PurchaseProducts { get; set; } = new();
 		public ProductBindingModel GetBindingModel() => new()
 		{
 			Id = Id,
@@ -83,7 +85,6 @@ namespace DatabaseImplement.Models
 			IsBeingSold = model.IsBeingSold;
 			Amount = model.Amount;
 		}
-
         public ProductViewModel GetViewModel
         {
             get

DatabaseImplement/Models/Purchase.cs

@@ -2,10 +2,13 @@
 using Contracts.ViewModels;
 using DataModels.Enums;
 using DataModels.Models;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 using System.Linq;
+using System.Runtime.Serialization;
 using System.Text;
 using System.Threading.Tasks;
 
@@ -16,27 +19,63 @@ namespace DatabaseImplement.Models
 		public Guid Id { get; set; }
 		[Required]
 		public DateTime DatePurchase { get; set; }
-		[Required]
+        [Required]
-		public PurchaseStatus  Status { get; private set; } = PurchaseStatus.Unknown;
+		public Guid UserId { get; set; }
-		public PurchaseBindingModel GetBindingModel() => new()
+        [Required]
+		public PurchaseStatus Status { get; private set; } = PurchaseStatus.Unknown;
+        private Dictionary<Guid, (IProduct, int)>? _purchaseProducts = null;
+        public virtual User? User { get; set; }
+		[DataMember]
+        [NotMapped]
+        public Dictionary<Guid, (IProduct, int)> PurchaseProducts
+        {
+            get
+            {
+                if (_purchaseProducts == null)
+                {
+                    _purchaseProducts = Products.ToDictionary(e => e.ProductId, e => (e.Product as IProduct, e.Count));
+                }
+                return _purchaseProducts;
+            }
+            set { }
+        }
+		[ForeignKey("PurchaseId")]
+		public virtual List<PurchaseProducts> Products { get; set; } = new();
+        public PurchaseBindingModel GetBindingModel() => new()
 		{
 			Id = Id,
 			DatePurchase = DatePurchase,
-			User = null,
+			UserId = UserId,
-			Products = new(),
+			PurchaseProducts = PurchaseProducts,
+			Status = Status
 		};
 
-		public static Purchase ToPurchaseFromView(PurchaseViewModel model, Purchase purchase) => new()
+        public PurchaseViewModel GetViewModel() => new()
+        {
+            Id = Id,
+            DatePurchase = DatePurchase,
+            UserId = UserId,
+            PurchaseProducts = PurchaseProducts,
+            Status = Status
+        };
+
+        public static Purchase ToPurchaseFromView(PurchaseViewModel model, Purchase purchase) => new()
 		{
 			Id = model.Id,
-			DatePurchase = model.DatePurchase
+			DatePurchase = model.DatePurchase,
-		};
+            UserId = model.UserId,
+            PurchaseProducts = model.PurchaseProducts,
+            Status = model.Status
+        };
 
 		public static Purchase ToPurchaseFromBinding(PurchaseBindingModel model, Purchase purchase) => new()
 		{
 			Id = model.Id,
 			DatePurchase = model.DatePurchase,
-		};
+            UserId = model.UserId,
+            PurchaseProducts = model.PurchaseProducts,
+            Status = model.Status
+        };
 
 		public void Update(PurchaseBindingModel model, Purchase purchase)
 		{

DatabaseImplement/Models/PurchaseProducts.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement.Models
+{
+    public class PurchaseProducts
+    {
+        public Guid Id { get; set; }
+        [Required]
+        public Guid PurchaseId { get; set; }
+        [Required]
+        public Guid ProductId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Product Product { get; set; } = new();
+        public virtual Purchase Purchase { get; set; } = new();
+
+    }
+}

WebApp/Pages/Cart.cshtml

@@ -0,0 +1,4 @@
+@page
+@model WebApp.Pages.CartModel
+@{
+}

WebApp/Pages/Cart.cshtml.cs

@@ -0,0 +1,13 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace WebApp.Pages
+{
+    public class CartModel : PageModel
+    {
+        public void OnGet()
+        {
+
+        }
+    }
+}

WebApp/Pages/Catalog.cshtml

@@ -0,0 +1,4 @@
+@page
+@model WebApp.Pages.CatalogModel
+@{
+}

WebApp/Pages/Catalog.cshtml.cs

@@ -0,0 +1,12 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace WebApp.Pages
+{
+    public class CatalogModel : PageModel
+    {
+        public void OnGet()
+        {
+        }
+    }
+}