всё

FlowerShopDatabaseImplement/Flower.cs

@@ -39,6 +39,8 @@ namespace FlowerShopDatabaseImplement.Models
         public virtual List<FlowerComponent> Components { get; set; } = new();
         [ForeignKey("FlowerId")]
         public virtual List<Order> Orders { get; set; } = new();
+        [ForeignKey("FlowerId")]
+        public virtual List<ShopFlower> ShopFlowers { get; set; } = new();
         public static Flower Create(FlowerShopDataBase context, FlowerBindingModel model)
         {
             return new Flower()
@@ -68,7 +70,7 @@ namespace FlowerShopDatabaseImplement.Models
         public void UpdateComponents(FlowerShopDataBase context, FlowerBindingModel model)
         {
             var flowerComponents = context.FlowerComponents.Where(rec =>rec.FlowerId == model.Id).ToList();
-            if (flowerComponents != null && FlowerComponents.Count > 0)
+            if (flowerComponents != null && flowerComponents.Count > 0)
             {
                 context.FlowerComponents.RemoveRange(flowerComponents.Where(rec => !model.FlowerComponents.ContainsKey(rec.ComponentId)));
                 context.SaveChanges();

FlowerShopDatabaseImplement/FlowerShopDataBase.cs

@@ -14,7 +14,7 @@ namespace FlowerShopDatabaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=FlowerShopDatabaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=FlowerShopHardDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -22,5 +22,7 @@ namespace FlowerShopDatabaseImplement
         public virtual DbSet<Flower> Flowers { set; get; }
         public virtual DbSet<FlowerComponent> FlowerComponents { set; get; }
         public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<Shop> Shops { set; get; }
+        public virtual DbSet<ShopFlower> ShopFlowers { set; get; }
     }
 }

FlowerShopDatabaseImplement/Migrations/20240324171319_InitialCreate.Designer.cs

@@ -12,7 +12,7 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 namespace FlowerShopDatabaseImplement.Migrations
 {
     [DbContext(typeof(FlowerShopDataBase))]
-    [Migration("20240312171524_InitialCreate")]
+    [Migration("20240324171319_InitialCreate")]
     partial class InitialCreate
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -90,7 +90,7 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.ToTable("FlowerComponents");
                 });
 
-            modelBuilder.Entity("FlowerShopDatabaseImplement.Order", b =>
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Order", b =>
                 {
                     b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
@@ -123,6 +123,59 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.ShopFlower", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FlowerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FlowerId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopFlowers");
+                });
+
             modelBuilder.Entity("FlowerShopDatabaseImplement.Models.FlowerComponent", b =>
                 {
                     b.HasOne("FlowerShopDatabaseImplement.Models.Component", "Component")
@@ -142,13 +195,34 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.Navigation("Flower");
                 });
 
-            modelBuilder.Entity("FlowerShopDatabaseImplement.Order", b =>
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Order", b =>
                 {
-                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", null)
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", "Flower")
                         .WithMany("Orders")
                         .HasForeignKey("FlowerId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
+
+                    b.Navigation("Flower");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.ShopFlower", b =>
+                {
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", "Flower")
+                        .WithMany("ShopFlowers")
+                        .HasForeignKey("FlowerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Flowers")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Flower");
+
+                    b.Navigation("Shop");
                 });
 
             modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Component", b =>
@@ -161,6 +235,13 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.Navigation("Components");
 
                     b.Navigation("Orders");
+
+                    b.Navigation("ShopFlowers");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Flowers");
                 });
 #pragma warning restore 612, 618
         }

FlowerShopDatabaseImplement/Migrations/20240324171319_InitialCreate.cs

@@ -37,6 +37,22 @@ namespace FlowerShopDatabaseImplement.Migrations
                     table.PrimaryKey("PK_Flowers", x => x.Id);
                 });
 
+            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),
+                    DateOpen = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    MaxCapacity = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
             migrationBuilder.CreateTable(
                 name: "FlowerComponents",
                 columns: table => new
@@ -88,6 +104,33 @@ namespace FlowerShopDatabaseImplement.Migrations
                         onDelete: ReferentialAction.Cascade);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "ShopFlowers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    FlowerId = table.Column<int>(type: "int", nullable: false),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopFlowers", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopFlowers_Flowers_FlowerId",
+                        column: x => x.FlowerId,
+                        principalTable: "Flowers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopFlowers_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
             migrationBuilder.CreateIndex(
                 name: "IX_FlowerComponents_ComponentId",
                 table: "FlowerComponents",
@@ -102,6 +145,16 @@ namespace FlowerShopDatabaseImplement.Migrations
                 name: "IX_Orders_FlowerId",
                 table: "Orders",
                 column: "FlowerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopFlowers_FlowerId",
+                table: "ShopFlowers",
+                column: "FlowerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopFlowers_ShopId",
+                table: "ShopFlowers",
+                column: "ShopId");
         }
 
         protected override void Down(MigrationBuilder migrationBuilder)
@@ -112,11 +165,17 @@ namespace FlowerShopDatabaseImplement.Migrations
             migrationBuilder.DropTable(
                 name: "Orders");
 
+            migrationBuilder.DropTable(
+                name: "ShopFlowers");
+
             migrationBuilder.DropTable(
                 name: "Components");
 
             migrationBuilder.DropTable(
                 name: "Flowers");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
         }
     }
 }

FlowerShopDatabaseImplement/Migrations/FlowerShopDataBaseModelSnapshot.cs

@@ -88,7 +88,7 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.ToTable("FlowerComponents");
                 });
 
-            modelBuilder.Entity("FlowerShopDatabaseImplement.Order", b =>
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Order", b =>
                 {
                     b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
@@ -121,6 +121,59 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.ShopFlower", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FlowerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FlowerId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopFlowers");
+                });
+
             modelBuilder.Entity("FlowerShopDatabaseImplement.Models.FlowerComponent", b =>
                 {
                     b.HasOne("FlowerShopDatabaseImplement.Models.Component", "Component")
@@ -140,13 +193,34 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.Navigation("Flower");
                 });
 
-            modelBuilder.Entity("FlowerShopDatabaseImplement.Order", b =>
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Order", b =>
                 {
-                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", null)
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", "Flower")
                         .WithMany("Orders")
                         .HasForeignKey("FlowerId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
+
+                    b.Navigation("Flower");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.ShopFlower", b =>
+                {
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Flower", "Flower")
+                        .WithMany("ShopFlowers")
+                        .HasForeignKey("FlowerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FlowerShopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Flowers")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Flower");
+
+                    b.Navigation("Shop");
                 });
 
             modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Component", b =>
@@ -159,6 +233,13 @@ namespace FlowerShopDatabaseImplement.Migrations
                     b.Navigation("Components");
 
                     b.Navigation("Orders");
+
+                    b.Navigation("ShopFlowers");
+                });
+
+            modelBuilder.Entity("FlowerShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Flowers");
                 });
 #pragma warning restore 612, 618
         }

FlowerShopDatabaseImplement/OrderStorage.cs

@@ -18,7 +18,7 @@ namespace FlowerShopDatabaseImplement.Implements
         public List<OrderViewModel> GetFullList()
         {
             using var context = new FlowerShopDataBase();
-            return context.Orders
+            return context.Orders.Include(x => x.Flower)
             .Select(x => AccessFlowerStorage(x.GetViewModel))
            .ToList();
         }
@@ -29,7 +29,7 @@ namespace FlowerShopDatabaseImplement.Implements
                 return new();
             }
             using var context = new FlowerShopDataBase();
-            return context.Orders
+            return context.Orders.Include(x => x.Flower)
             .Where(x => x.Id == model.Id)
            .Select(x => AccessFlowerStorage(x.GetViewModel))
            .ToList();
@@ -41,16 +41,16 @@ namespace FlowerShopDatabaseImplement.Implements
                 return null;
             }
             using var context = new FlowerShopDataBase();
-            return AccessFlowerStorage(context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel);
+            return AccessFlowerStorage(context.Orders.Include(x => x.Flower).FirstOrDefault(x => x.Id == model.Id)?.GetViewModel);
         }
         public OrderViewModel? Insert(OrderBindingModel model)
         {
-            var newOrder = Order.Create(model);
+            using var context = new FlowerShopDataBase();
+            var newOrder = Order.Create(context, model);
             if (newOrder == null)
             {
                 return null;
             }  
-            using var context = new FlowerShopDataBase();
             context.Orders.Add(newOrder);
             context.SaveChanges();
             return AccessFlowerStorage(newOrder.GetViewModel);
@@ -58,8 +58,7 @@ namespace FlowerShopDatabaseImplement.Implements
         public OrderViewModel? Update(OrderBindingModel model)
         {
             using var context = new FlowerShopDataBase();
-            var order = context.Orders.FirstOrDefault(x => x.Id ==
+            var order = context.Orders.Include(x => x.Flower).FirstOrDefault(x => x.Id == model.Id);
-           model.Id);
             if (order == null)
             {
                 return null;
@@ -71,7 +70,7 @@ namespace FlowerShopDatabaseImplement.Implements
         public OrderViewModel? Delete(OrderBindingModel model)
         {
             using var context = new FlowerShopDataBase();
-            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
+            var element = context.Orders.Include(x => x.Flower).FirstOrDefault(rec => rec.Id ==
            model.Id);
             if (element != null)
             {

FlowerShopDatabaseImplement/Shop.cs

@@ -0,0 +1,116 @@
+using FlowerShopContracts.BindingModels;
+using FlowerShopContracts.ViewModels;
+using FlowerShopDataModels.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 FlowerShopDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ShopName { get; private set; }
+        [Required]
+        public string Address { get; private set; }
+        [Required]
+        public DateTime DateOpen { get; private set; }
+        [Required]
+        public int MaxCapacity { get; private set; }
+        private Dictionary<int, (IFlowerModel, int)>? _shopFlowers =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IFlowerModel, int)> ShopFlowers
+        {
+            get
+            {
+                if (_shopFlowers == null)
+                {
+                    _shopFlowers = Flowers
+                    .ToDictionary(x => x.FlowerId, x =>
+                   (x.Flower as IFlowerModel, x.Count));
+                }
+                return _shopFlowers;
+            }
+        }
+        [ForeignKey("ShopId")]
+        public virtual List<ShopFlower> Flowers { get; set; } = new();
+        public static Shop? Create(FlowerShopDataBase context, ShopBindingModel model)
+        {
+            if (model == null)
+                return null;
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpen = model.DateOpen,
+                MaxCapacity = model.MaxCapacity,
+                Flowers = model.ShopFlowers.Select(x => new
+               ShopFlower
+                {
+                    Flower = context.Flowers.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpen = model.DateOpen;
+            MaxCapacity = model.MaxCapacity;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            ShopFlowers = ShopFlowers,
+            MaxCapacity = MaxCapacity
+        };
+
+        public void UpdateFlowers(FlowerShopDataBase context, ShopBindingModel model)
+        {
+            var shopFlowers = context.ShopFlowers.Where(rec =>
+           rec.ShopId == model.Id).ToList();
+            if (shopFlowers != null && shopFlowers.Count > 0)
+            {
+                context.ShopFlowers.RemoveRange(shopFlowers.Where(rec => !model.ShopFlowers.ContainsKey(rec.ShopId)));
+
+                context.SaveChanges();
+                foreach (var updateFlower in shopFlowers)
+                {
+                    updateFlower.Count =
+                   model.ShopFlowers[updateFlower.FlowerId].Item2;
+                    model.ShopFlowers.Remove(updateFlower.FlowerId);
+                }
+                context.SaveChanges();
+            }
+            var shop = context.Shops.First(x => x.Id == Id);
+            foreach (var pc in model.ShopFlowers)
+            {
+                context.ShopFlowers.Add(new ShopFlower
+                {
+                    Shop = shop,
+                    Flower = context.Flowers.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _shopFlowers = null;
+        }
+    }
+}

FlowerShopDatabaseImplement/ShopFlower.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 FlowerShopDatabaseImplement.Models
+{
+    public class ShopFlower
+    {
+        public int Id { get; set; }
+        [Required]
+        public int FlowerId { get; set; }
+        [Required]
+        public int ShopId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Shop Shop { get; set; } = new();
+        public virtual Flower Flower { get; set; } = new();
+    }
+}

FlowerShopDatabaseImplement/ShopStorage.cs

@@ -0,0 +1,153 @@
+using FlowerShopContracts.BindingModels;
+using FlowerShopContracts.SearchModels;
+using FlowerShopContracts.StoragesContracts;
+using FlowerShopContracts.ViewModels;
+using FlowerShopDatabaseImplement.Models;
+using FlowerShopDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FlowerShopDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new FlowerShopDataBase();
+            var element = context.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new FlowerShopDataBase();
+            return context.Shops
+                .Include(x => x.Flowers)
+                .ThenInclude(x => x.Flower)
+                .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new FlowerShopDataBase();
+            return context.Shops
+                .Include(x => x.Flowers)
+                .ThenInclude(x => x.Flower)
+                .Select(x => x.GetViewModel)
+                .Where(x => x.ShopName.Contains(model.Name ?? string.Empty))
+                .ToList();
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new FlowerShopDataBase();
+            return context.Shops
+            .Include(x => x.Flowers)
+                .ThenInclude(x => x.Flower)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new FlowerShopDataBase();
+            try
+            {
+                var newShop = Shop.Create(context, model);
+                if (newShop == null)
+                {
+                    return null;
+                }
+                if (context.Shops.Any(x => x.ShopName == newShop.ShopName))
+                {
+                    throw new Exception("Не должно быть два магазина с одним названием");
+                }
+                context.Shops.Add(newShop);
+                context.SaveChanges();
+                return newShop.GetViewModel;
+            }
+            catch
+            {
+                throw;
+            }
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new FlowerShopDataBase();
+            var shop = context.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            try
+            {
+                if (context.Shops.Any(x => (x.ShopName == model.ShopName && x.Id != model.Id)))
+                {
+                    throw new Exception("Не должно быть два магазина с одним названием");
+                }
+                shop.Update(model);
+                shop.UpdateFlowers(context, model);
+                context.SaveChanges();
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                throw;
+            }
+        }
+        public bool SellFlowers(IFlowerModel model, int count)
+        {
+            if (model == null)
+                return false;
+            using var context = new FlowerShopDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            List<ShopFlower> lst = new List<ShopFlower>();
+            foreach (var el in context.ShopFlowers.Where(x => x.FlowerId == model.Id))
+            {
+                int dif = count;
+                if (el.Count < dif)
+                    dif = el.Count;
+                el.Count -= dif;
+                count -= dif;
+                if (el.Count == 0)
+                {
+                    lst.Add(el);
+                }
+                if (count == 0)
+                    break;
+            }
+            if (count > 0)
+            {
+                transaction.Rollback();
+                return false;
+            }
+            foreach (var el in lst)
+            {
+                context.ShopFlowers.Remove(el);
+            }
+            context.SaveChanges();
+            transaction.Commit();
+            return true;
+        }
+    }
+}