Третья усложнённая лабораторная работа. Релизовано сохранение в БД, попленение и списание требует фикса.

.gitignore

@@ -398,3 +398,4 @@ FodyWeavers.xsd
 # JetBrains Rider
 *.sln.iml
 
+/Confectionery/ImplementationExtensions

Confectionery/ConfectioneryDataBaseImplement/ConfectioneryDatabase.cs

@@ -15,7 +15,7 @@ namespace ConfectioneryDataBaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=ConfectioneryDatabaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=ConfectioneryDatabaseHardLab;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -23,5 +23,7 @@ namespace ConfectioneryDataBaseImplement
         public virtual DbSet<Pastry> Pastrys { set; get; }
         public virtual DbSet<PastryIngredient> PastryIngredients { set; get; }
         public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<Shop> Shops { set; get; }
+        public virtual DbSet<ShopPastry> ShopPastries { set; get; }
     }
 }

Confectionery/ConfectioneryDataBaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,185 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataBaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new ConfectioneryDatabase();
+            return context.Shops
+            .Include(x => x.Pastries)
+            .ThenInclude(x => x.Pastry)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.Shops
+            .Include(x => x.Pastries)
+            .ThenInclude(x => x.Pastry)
+            .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 ConfectioneryDatabase();
+            return context.Shops
+            .Include(x => x.Pastries)
+            .ThenInclude(x => x.Pastry)
+            .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 ConfectioneryDatabase();
+            var newShop = Shop.Create(model, context);
+            if (newShop == null)
+            {
+                return null;
+            }
+            context.Shops.Add(newShop);
+            context.SaveChanges();
+            return newShop.GetViewModel;
+        }
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var product = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
+                if (product == null)
+                {
+                    return null;
+                }
+                product.Update(model);
+                context.SaveChanges();
+                product.UpdatePastries(context, model);
+                transaction.Commit();
+                return product.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var element = context.Shops
+            .Include(x => x.Pastries)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public bool Supply(int pastryId, int count)
+        {
+            using ConfectioneryDatabase context = new ConfectioneryDatabase();
+            var transaction = context.Database.BeginTransaction();
+            foreach (Shop shop in context.Shops)
+            {
+                int freeShopSpace = shop.PastryCapacity - shop.ShopPastries.Select(y => y.Value.Item2).Sum();
+                if (freeShopSpace > 0)
+                {
+                    if (freeShopSpace >= count)
+                    {
+                        if (shop.ShopPastries.ContainsKey(pastryId))
+                        {
+                            var shopPastry = shop.ShopPastries[pastryId];
+                            shopPastry.Item2 += count;
+                            shop.ShopPastries[pastryId] = shopPastry;
+                        }
+                        else
+                        {
+                            Pastry pastry = context.Pastrys.First(x => x.Id == pastryId);
+                            shop.ShopPastries.Add(pastryId, (pastry, count));
+                        }
+                        shop.RemapPastries(context);
+                        transaction.Commit();
+                        return true;
+                    }
+                    else
+                    {
+                        int dif = count - freeShopSpace;
+                        count -= freeShopSpace;
+                        if (shop.ShopPastries.TryGetValue(pastryId, out var pastryCount))
+                        {
+                            var shopPastry = shop.ShopPastries[pastryId];
+                            shopPastry.Item2 = pastryCount.Item2 + count;
+                            shop.ShopPastries[pastryId] = shopPastry;
+                        }
+                        else
+                        {
+                            Pastry pastry = context.Pastrys.First(x => x.Id == pastryId);
+                            shop.ShopPastries.Add(pastryId, (pastry, count));
+                        }
+                        shop.RemapPastries(context);
+                    }
+                }
+            }
+            transaction.Rollback();
+            return false;
+        }
+
+        public bool Sell(int pastryId, int count)
+        {
+            using ConfectioneryDatabase context = new ConfectioneryDatabase();
+            var transaction = context.Database.BeginTransaction();
+            foreach (Shop shop in context.Shops)
+            {
+                int shopPastryCount = shop.ShopPastries.Select(x => x.Value).Where(x => x.Item1.Id == pastryId).Sum(x => x.Item2);
+                if (count - shopPastryCount >= 0)
+                {
+                    count -= shopPastryCount;
+                    shop.ShopPastries.Remove(pastryId);
+                }
+                else
+                {
+                    var shopPastry = shop.ShopPastries[pastryId];
+                    shopPastry.Item2 -= count;
+                    count = 0;
+                    shop.ShopPastries[pastryId] = shopPastry;
+                }
+                shop.RemapPastries(context);
+                if (count == 0)
+                {
+                    transaction.Commit();
+                    return true;
+                }
+            }
+            transaction.Rollback();
+            return false;
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/20230515043657_HardInitialCreate.Designer.cs

@@ -0,0 +1,246 @@
+// <auto-generated />
+using System;
+using ConfectioneryDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace ConfectioneryDataBaseImplement.Migrations
+{
+    [DbContext(typeof(ConfectioneryDatabase))]
+    [Migration("20230515043657_HardInitialCreate")]
+    partial class HardInitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Ingredient", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("IngredientName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Ingredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.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>("PastryId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Pastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PastryName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pastrys");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.PastryIngredient", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("IngredientId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("IngredientId");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("PastryIngredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("PastryCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopAdress")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.ShopPastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PastryId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopPastries");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.PastryIngredient", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Ingredient", "Ingredient")
+                        .WithMany("PastryIgredients")
+                        .HasForeignKey("IngredientId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", "Pastry")
+                        .WithMany("Ingredients")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ingredient");
+
+                    b.Navigation("Pastry");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.ShopPastry", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", "Pastry")
+                        .WithMany()
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Shop", "Shop")
+                        .WithMany("Pastries")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pastry");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Ingredient", b =>
+                {
+                    b.Navigation("PastryIgredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Pastry", b =>
+                {
+                    b.Navigation("Ingredients");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Pastries");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/20230515043657_HardInitialCreate.cs

@@ -0,0 +1,78 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ConfectioneryDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class HardInitialCreate : 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),
+                    ShopAdress = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    OpeningDate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    PastryCapacity = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopPastries",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    PastryId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopPastries", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopPastries_Pastrys_PastryId",
+                        column: x => x.PastryId,
+                        principalTable: "Pastrys",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopPastries_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopPastries_PastryId",
+                table: "ShopPastries",
+                column: "PastryId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopPastries_ShopId",
+                table: "ShopPastries",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ShopPastries");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/ConfectioneryDatabaseModelSnapshot.cs

@@ -121,6 +121,59 @@ namespace ConfectioneryDataBaseImplement.Migrations
                     b.ToTable("PastryIngredients");
                 });
 
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("PastryCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopAdress")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.ShopPastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PastryId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopPastries");
+                });
+
             modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Order", b =>
                 {
                     b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", null)
@@ -149,6 +202,25 @@ namespace ConfectioneryDataBaseImplement.Migrations
                     b.Navigation("Pastry");
                 });
 
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.ShopPastry", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", "Pastry")
+                        .WithMany()
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Shop", "Shop")
+                        .WithMany("Pastries")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pastry");
+
+                    b.Navigation("Shop");
+                });
+
             modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Ingredient", b =>
                 {
                     b.Navigation("PastryIgredients");
@@ -160,6 +232,11 @@ namespace ConfectioneryDataBaseImplement.Migrations
 
                     b.Navigation("Orders");
                 });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Pastries");
+                });
 #pragma warning restore 612, 618
         }
     }

Confectionery/ConfectioneryDataBaseImplement/Models/Shop.cs

@@ -0,0 +1,112 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataBaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id {  get; private set; }
+        [Required]
+        public string ShopName {  get; private set; } = string.Empty;
+        [Required]
+        public string ShopAdress {  get; private set; } = string.Empty;
+        [Required]
+        public DateTime OpeningDate { get; private set; }
+        [Required]
+        public int PastryCapacity { get; private set; }
+        private Dictionary<int, (IPastryModel, int)>? _shopPastries = null;
+        [NotMapped]
+        public Dictionary<int, (IPastryModel, int)> ShopPastries
+        {
+            get
+            {
+                if (_shopPastries == null)
+                {
+                    _shopPastries = Pastries
+                    .ToDictionary(recSP => recSP.PastryId, recPI => (recPI.Pastry as IPastryModel, recPI.Count));
+                }
+                return _shopPastries;
+            }
+        }
+        [ForeignKey("ShopId")]
+        public virtual List<ShopPastry> Pastries { get; set; } = new();
+
+        public static Shop Create(ShopBindingModel model, ConfectioneryDatabase context)
+        {
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopAdress = model.ShopAdress,
+                ShopName = model.ShopName,
+                OpeningDate = model.OpeningDate,
+                PastryCapacity = model.PastryCapacity,
+                Pastries = model.ShopPastries.Select(x => new ShopPastry {
+                    Pastry = context.Pastrys.First(y => y.Id == x.Key), Count = x.Value.Item2 }).ToList()
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            ShopAdress = model.ShopAdress;
+            OpeningDate = model.OpeningDate;
+            PastryCapacity = model.PastryCapacity;
+        }
+
+        public void UpdatePastries(ConfectioneryDatabase context, ShopBindingModel model)
+        {
+            var shopPastries = context.ShopPastries.Where(rec => rec.ShopId == model.Id).ToList();
+            if (shopPastries != null && shopPastries.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.ShopPastries.RemoveRange(shopPastries.Where(rec => !model.ShopPastries.ContainsKey(rec.PastryId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateIngredient in shopPastries)
+                {
+                    updateIngredient.Count = model.ShopPastries[updateIngredient.PastryId].Item2;
+                    model.ShopPastries.Remove(updateIngredient.PastryId);
+                }
+                var shop = context.Shops.First(x => x.Id == Id);
+                foreach (var sp in model.ShopPastries)
+                {
+                    context.ShopPastries.Add(new ShopPastry
+                    {
+                        Shop = shop,
+                        Pastry = context.Pastrys.First(x => x.Id == sp.Key),
+                        Count = sp.Value.Item2
+                    });
+                    context.SaveChanges();
+                }
+                _shopPastries = null;
+            }
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            ShopAdress = ShopAdress,
+            ShopPastries = ShopPastries,
+            OpeningDate = OpeningDate,
+            PastryCapacity = PastryCapacity,
+        };
+
+        public void RemapPastries(ConfectioneryDatabase context)
+        {
+            UpdatePastries(context, new ShopBindingModel { Id = Id, ShopPastries = ShopPastries });
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Models/ShopPastry.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataBaseImplement.Models
+{
+    public class ShopPastry
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ShopId { get; set; }
+        [Required]
+        public int PastryId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Shop Shop { get; set; } = new(); 
+        public virtual Pastry Pastry { get; set; } = new(); 
+    }
+}