Готовая 3 лабораторная (усложненная)

FoodOrders/FoodOrdersDatabaseImplement/FoodOrdersDatabase.cs

@@ -15,7 +15,7 @@ optionsBuilder)
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=.\SQLEXPRESS;Initial Catalog=FoodOrdersDatabaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=.\SQLEXPRESS;Initial Catalog=FoodOrdersDatabaseHard;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -23,5 +23,7 @@ optionsBuilder)
         public virtual DbSet<Dish> Dishs { set; get; }
         public virtual DbSet<DishComponent> DishComponents { set; get; }
         public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<Shop> Shops { set; get; }
+        public virtual DbSet<ShopDish> ShopDishs { set; get; }
     }
 }

FoodOrders/FoodOrdersDatabaseImplement/Implemets/ShopStorage.cs

@@ -0,0 +1,146 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.SearchModels;
+using FoodOrdersContracts.StoragesContracts;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersDatabaseImplement.Models;
+using FoodOrdersDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace FoodOrdersDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new FoodOrdersDatabase();
+            return context.Shops
+                    .Include(x => x.Dishs)
+                    .ThenInclude(x => x.Dish)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            using var context = new FoodOrdersDatabase();
+            return context.Shops
+                    .Include(x => x.Dishs)
+                    .ThenInclude(x => x.Dish)
+                    .Where(x => x.ShopName.Contains(model.ShopName))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new FoodOrdersDatabase();
+            return context.Shops
+                .Include(x => x.Dishs)
+                .ThenInclude(x => x.Dish)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
+                                (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new FoodOrdersDatabase();
+            var newShop = Shop.Create(context, model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            context.Shops.Add(newShop);
+            context.SaveChanges();
+            return newShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new FoodOrdersDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var shop = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
+                if (shop == null)
+                {
+                    return null;
+                }
+                shop.Update(model);
+                context.SaveChanges();
+                shop.UpdateDishs(context, model);
+                transaction.Commit();
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new FoodOrdersDatabase();
+            var element = context.Shops
+                .Include(x => x.Dishs)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public bool SellDish(IDishModel model, int count)
+        {
+            using var context = new FoodOrdersDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                foreach (var shop in context.Shops.Include(x => x.Dishs).ThenInclude(x => x.Dish)
+                    .Where(x => x.Dishs.Any(x => x.DishId == model.Id))
+                    .ToList())
+                {
+                    var iceCream = shop.ShopDishs[model.Id];
+                    int min = Math.Min(iceCream.Item2, count);
+                    if (min == iceCream.Item2)
+                    {
+                        shop.ShopDishs.Remove(model.Id);
+                    }
+                    else
+                    {
+                        shop.ShopDishs[model.Id] = (iceCream.Item1, iceCream.Item2 - min);
+                    }
+                    shop.UpdateDishs(context, new() { Id = shop.Id, ShopDishs = shop.ShopDishs });
+                    count -= min;
+                    if (count == 0)
+                    {
+                        context.SaveChanges();
+                        transaction.Commit();
+                        return true;
+                    }
+                }
+                transaction.Rollback();
+                return false;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+    }
+}

FoodOrders/FoodOrdersDatabaseImplement/Migrations/20240416140734_Hard.Designer.cs

@@ -0,0 +1,250 @@
+// <auto-generated />
+using System;
+using FoodOrdersDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FoodOrdersDatabaseImplement.Migrations
+{
+    [DbContext(typeof(FoodOrdersDatabase))]
+    [Migration("20240416140734_Hard")]
+    partial class Hard
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.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("FoodOrdersDatabaseImplement.Models.Dish", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("DishName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Dishs");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.DishComponent", 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>("DishId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("DishId");
+
+                    b.ToTable("DishComponents");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.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>("DishId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DishId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpening")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountDishs")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.ShopDish", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DishId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DishId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopDishs");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.DishComponent", b =>
+                {
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Component", "Component")
+                        .WithMany("DishComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Dish", "Dish")
+                        .WithMany("Components")
+                        .HasForeignKey("DishId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Dish");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Dish", "Dish")
+                        .WithMany("Orders")
+                        .HasForeignKey("DishId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Dish");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.ShopDish", b =>
+                {
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Dish", "Dish")
+                        .WithMany("ShopDishs")
+                        .HasForeignKey("DishId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Dishs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Dish");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("DishComponents");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Dish", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+
+                    b.Navigation("ShopDishs");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Dishs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FoodOrders/FoodOrdersDatabaseImplement/Migrations/20240416140734_Hard.cs

@@ -0,0 +1,78 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FoodOrdersDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Hard : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Address = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    DateOpening = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    MaxCountDishs = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopDishs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    DishId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopDishs", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopDishs_Dishs_DishId",
+                        column: x => x.DishId,
+                        principalTable: "Dishs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopDishs_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopDishs_DishId",
+                table: "ShopDishs",
+                column: "DishId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopDishs_ShopId",
+                table: "ShopDishs",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ShopDishs");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

FoodOrders/FoodOrdersDatabaseImplement/Migrations/FoodOrdersDatabaseModelSnapshot.cs

@@ -121,6 +121,59 @@ namespace FoodOrdersDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpening")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountDishs")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.ShopDish", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DishId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DishId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopDishs");
+                });
+
             modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.DishComponent", b =>
                 {
                     b.HasOne("FoodOrdersDatabaseImplement.Models.Component", "Component")
@@ -151,6 +204,25 @@ namespace FoodOrdersDatabaseImplement.Migrations
                     b.Navigation("Dish");
                 });
 
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.ShopDish", b =>
+                {
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Dish", "Dish")
+                        .WithMany("ShopDishs")
+                        .HasForeignKey("DishId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FoodOrdersDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Dishs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Dish");
+
+                    b.Navigation("Shop");
+                });
+
             modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Component", b =>
                 {
                     b.Navigation("DishComponents");
@@ -161,6 +233,13 @@ namespace FoodOrdersDatabaseImplement.Migrations
                     b.Navigation("Components");
 
                     b.Navigation("Orders");
+
+                    b.Navigation("ShopDishs");
+                });
+
+            modelBuilder.Entity("FoodOrdersDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Dishs");
                 });
 #pragma warning restore 612, 618
         }

FoodOrders/FoodOrdersDatabaseImplement/Models/Dish.cs

@@ -38,6 +38,8 @@ namespace FoodOrdersDatabaseImplement.Models
         public virtual List<DishComponent> Components { get; set; } = new();
         [ForeignKey("DishId")]
         public virtual List<Order> Orders { get; set; } = new();
+        [ForeignKey("DishId")]
+        public virtual List<ShopDish> ShopDishs { get; set; } = new();
 
         public static Dish? Create(FoodOrdersDatabase context, DishBindingModel model)
         {

FoodOrders/FoodOrdersDatabaseImplement/Models/Shop.cs

@@ -0,0 +1,110 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FoodOrdersDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string ShopName { get; set; } = string.Empty;
+
+        [Required]
+        public string Address { get; set; } = string.Empty;
+
+        [Required]
+        public DateTime DateOpening { get; set; }
+
+        [Required]
+        public int MaxCountDishs { get; set; }
+
+        private Dictionary<int, (IDishModel, int)>? _shopDishs = null;
+
+        [NotMapped]
+        public Dictionary<int, (IDishModel, int)> ShopDishs
+        {
+            get
+            {
+                if (_shopDishs == null)
+                {
+                    _shopDishs = Dishs
+                            .ToDictionary(x => x.DishId, x => (x.Dish as IDishModel, x.Count));
+                }
+                return _shopDishs;
+            }
+        }
+
+        [ForeignKey("ShopId")]
+        public virtual List<ShopDish> Dishs { get; set; } = new();
+
+        public static Shop Create(FoodOrdersDatabase context, ShopBindingModel model)
+        {
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpening = model.DateOpening,
+                MaxCountDishs = model.MaxCountDishs,
+                Dishs = model.ShopDishs.Select(x => new ShopDish
+                {
+                    Dish = context.Dishs.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(ShopBindingModel model)
+        {
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpening = model.DateOpening;
+            MaxCountDishs = model.MaxCountDishs;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpening = DateOpening,
+            MaxCountDishs = MaxCountDishs,
+            ShopDishs = ShopDishs
+        };
+
+        public void UpdateDishs(FoodOrdersDatabase context, ShopBindingModel model)
+        {
+            var shopDishs = context.ShopDishs.Where(rec => rec.ShopId == model.Id).ToList();
+            if (shopDishs != null && shopDishs.Count > 0)
+            {
+                context.ShopDishs.RemoveRange(shopDishs.Where(rec => !model.ShopDishs.ContainsKey(rec.DishId)));
+                context.SaveChanges();
+                foreach (var updateDish in shopDishs)
+                {
+                    if (model.ShopDishs.ContainsKey(updateDish.DishId))
+                    {
+                        updateDish.Count = model.ShopDishs[updateDish.DishId].Item2;
+                        model.ShopDishs.Remove(updateDish.DishId);
+                    }
+                }
+                context.SaveChanges();
+            }
+            var shop = context.Shops.First(x => x.Id == Id);
+            foreach (var ic in model.ShopDishs)
+            {
+                context.ShopDishs.Add(new ShopDish
+                {
+                    Shop = shop,
+                    Dish = context.Dishs.First(x => x.Id == ic.Key),
+                    Count = ic.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _shopDishs = null;
+        }
+    }
+}

FoodOrders/FoodOrdersDatabaseImplement/Models/ShopDish.cs

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