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Confectionery/Confectionery.sln

@@ -9,9 +9,13 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryContracts", "C
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryView", "ConfectioneryView\ConfectioneryView.csproj", "{B222E04E-D0E7-49F4-8747-426125645B93}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConfectioneryBusinessLogic", "ConfectioneryBusinessLogic\ConfectioneryBusinessLogic.csproj", "{40859695-0BD6-49A8-8997-AD76F6984144}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryBusinessLogic", "ConfectioneryBusinessLogic\ConfectioneryBusinessLogic.csproj", "{40859695-0BD6-49A8-8997-AD76F6984144}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConfectioneryListImplement", "ConfectioneryListImplement\ConfectioneryListImplement.csproj", "{8B6BFE3A-CA63-4FCB-B7AC-DB3F28E0F7A7}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryListImplement", "ConfectioneryListImplement\ConfectioneryListImplement.csproj", "{8B6BFE3A-CA63-4FCB-B7AC-DB3F28E0F7A7}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConfectioneryFileImplement", "ConfectioneryFileImplement\ConfectioneryFileImplement.csproj", "{2DA79E40-423F-4DEA-9FF1-F99F3A2A4DC9}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConfectioneryDatabaseImplement", "ConfectioneryDatabaseImplement\ConfectioneryDatabaseImplement.csproj", "{ECED35DF-7E6A-48F5-B0EB-3D01D772C7FD}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -39,6 +43,14 @@ Global
 		{8B6BFE3A-CA63-4FCB-B7AC-DB3F28E0F7A7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{8B6BFE3A-CA63-4FCB-B7AC-DB3F28E0F7A7}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{8B6BFE3A-CA63-4FCB-B7AC-DB3F28E0F7A7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2DA79E40-423F-4DEA-9FF1-F99F3A2A4DC9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2DA79E40-423F-4DEA-9FF1-F99F3A2A4DC9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2DA79E40-423F-4DEA-9FF1-F99F3A2A4DC9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2DA79E40-423F-4DEA-9FF1-F99F3A2A4DC9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{ECED35DF-7E6A-48F5-B0EB-3D01D772C7FD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{ECED35DF-7E6A-48F5-B0EB-3D01D772C7FD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{ECED35DF-7E6A-48F5-B0EB-3D01D772C7FD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{ECED35DF-7E6A-48F5-B0EB-3D01D772C7FD}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -56,7 +56,7 @@ namespace ConfectioneryBusinessLogic.BusinessLogics
                 return false;
             }
             model.Status = newStatus;
-            if (model.Status == OrderStatus.Готов) model.DateImplement = DateTime.Now;
+            if (model.Status == OrderStatus.Готов) model.DateImplement = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
             else
             {
                 model.DateImplement = viewModel.DateImplement;

Confectionery/ConfectioneryContracts/BindingModels/OrderBindingModel.cs

@@ -20,7 +20,7 @@ namespace ConfectioneryContracts.BindingModels
 
         public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
 
-        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
 
         public DateTime? DateImplement { get; set; }
     }

Confectionery/ConfectioneryDatabaseImplement/ConfectioneryDatabase.cs

@@ -0,0 +1,32 @@
+using ConfectioneryDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDatabaseImplement
+{
+    public class ConfectioneryDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"
+                    Host=localhost;
+                    Port=5432;
+                    Database=ConfectioneryDatabase;
+                    Username=postgres;
+                    Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Pastry> Pastries { set; get; }
+        public virtual DbSet<PastryComponent> PastryComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/ConfectioneryDatabaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+    <ProjectReference Include="..\ConfectioneryDataModels\ConfectioneryDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/ConfectioneryDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,86 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDatabaseImplement.Implements
+{
+	public class ComponentStorage : IComponentStorage
+	{
+		public List<ComponentViewModel> GetFullList()
+		{
+			using var context = new ConfectioneryDatabase();
+			return context.Components.Select(x => x.GetViewModel).ToList();
+		}
+
+		public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.ComponentName))
+			{
+				return new();
+			}
+			using var context = new ConfectioneryDatabase();
+			return context.Components
+				.Where(x => x.ComponentName.Contains(model.ComponentName))
+				.Select(x => x.GetViewModel)
+				.ToList();
+		}
+
+		public ComponentViewModel? GetElement(ComponentSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+			{
+				return null;
+			}
+			using var context = new ConfectioneryDatabase();
+			return context.Components
+				.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName)
+				|| (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+		}
+
+		public ComponentViewModel? Insert(ComponentBindingModel model)
+		{
+			var newComponent = Component.Create(model);
+			if (newComponent == null)
+			{
+				return null;
+			}
+			using var context = new ConfectioneryDatabase();
+			context.Components.Add(newComponent);
+			context.SaveChanges();
+			return newComponent.GetViewModel;
+		}
+
+		public ComponentViewModel? Update(ComponentBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+			var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+			if (component == null)
+			{
+				return null;
+			}
+			component.Update(model);
+			context.SaveChanges();
+			return component.GetViewModel;
+		}
+
+		public ComponentViewModel? Delete(ComponentBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+			var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+			if (element != null)
+			{
+				context.Components.Remove(element);
+				context.SaveChanges();
+				return element.GetViewModel;
+			}
+			return null;
+		}
+	}
+}

Confectionery/ConfectioneryDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,105 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDatabaseImplement.Implements
+{
+	public class OrderStorage : IOrderStorage
+	{
+		public OrderViewModel? Delete(OrderBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+
+			var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+
+			if (element != null)
+			{
+				context.Orders.Remove(element);
+				context.SaveChanges();
+
+				return GetViewModel(element);
+			}
+
+			return null;
+		}
+
+		public OrderViewModel? GetElement(OrderSearchModel model)
+		{
+			if (!model.Id.HasValue)
+			{
+				return null;
+			}
+
+			using var context = new ConfectioneryDatabase();
+
+			return GetViewModel(context.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id)));
+		}
+
+		public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+		{
+			if (!model.Id.HasValue)
+			{
+				return new();
+			}
+
+			using var context = new ConfectioneryDatabase();
+
+			return context.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+		}
+
+		public List<OrderViewModel> GetFullList()
+		{
+			using var context = new ConfectioneryDatabase();
+
+			return context.Orders.Select(x => GetViewModel(x)).ToList();
+		}
+
+		public OrderViewModel? Insert(OrderBindingModel model)
+		{
+			var newOrder = Order.Create(model);
+			if (newOrder == null)
+			{
+				return null;
+			}
+
+			using var context = new ConfectioneryDatabase();
+
+			context.Orders.Add(newOrder);
+			context.SaveChanges();
+			return GetViewModel(newOrder);
+		}
+
+		public OrderViewModel? Update(OrderBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+
+			var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+			if (order == null)
+			{
+				return null;
+			}
+
+			order.Update(model);
+			context.SaveChanges();
+
+			return GetViewModel(order);
+		}
+
+		private static OrderViewModel GetViewModel(Order order)
+		{
+			var viewModel = order.GetViewModel;
+			using var context = new ConfectioneryDatabase();
+			var element = context.Pastries.FirstOrDefault(x => x.Id == order.PastryId);
+			viewModel.PastryName = element.PastryName;
+			return viewModel;
+		}
+	}
+}

Confectionery/ConfectioneryDatabaseImplement/Implements/PastryStorage.cs

@@ -0,0 +1,111 @@
+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 PastryStorage : IPastryStorage
+	{
+		public List<PastryViewModel> GetFullList()
+		{
+			using var context = new ConfectioneryDatabase();
+			return context.Pastries
+			 .Include(x => x.Components)
+			.ThenInclude(x => x.Component)
+			.ToList()
+			.Select(x => x.GetViewModel)
+			.ToList();
+		}
+		public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.PastryName))
+			{
+				return new();
+			}
+			using var context = new ConfectioneryDatabase();
+			return context.Pastries
+			 .Include(x => x.Components)
+			.ThenInclude(x => x.Component)
+			.Where(x => x.PastryName.Contains(model.PastryName))
+			.ToList()
+			.Select(x => x.GetViewModel)
+			.ToList();
+		}
+		public PastryViewModel? GetElement(PastrySearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.PastryName) &&
+			!model.Id.HasValue)
+			{
+				return null;
+			}
+			using var context = new ConfectioneryDatabase();
+			return context.Pastries
+			 .Include(x => x.Components)
+			 .ThenInclude(x => x.Component)
+			 .FirstOrDefault(x => (!string.IsNullOrEmpty(model.PastryName) &&
+			x.PastryName == model.PastryName) ||
+			(model.Id.HasValue && x.Id ==
+			model.Id))
+			?.GetViewModel;
+		}
+		public PastryViewModel? Insert(PastryBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+			var newPastry = Pastry.Create(context, model);
+			if (newPastry == null)
+			{
+				return null;
+			}
+			context.Pastries.Add(newPastry);
+			context.SaveChanges();
+			return newPastry.GetViewModel;
+		}
+		public PastryViewModel? Update(PastryBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+			using var transaction = context.Database.BeginTransaction();
+			try
+			{
+				var pastry = context.Pastries.FirstOrDefault(rec =>
+				rec.Id == model.Id);
+				if (pastry == null)
+				{
+					return null;
+				}
+				pastry.Update(model);
+				context.SaveChanges();
+				pastry.UpdateComponents(context, model);
+				transaction.Commit();
+				return pastry.GetViewModel;
+			}
+			catch
+			{
+				transaction.Rollback();
+				throw;
+			}
+		}
+		public PastryViewModel? Delete(PastryBindingModel model)
+		{
+			using var context = new ConfectioneryDatabase();
+			var element = context.Pastries
+			.Include(x => x.Components)
+			.FirstOrDefault(rec => rec.Id == model.Id);
+			if (element != null)
+			{
+				context.Pastries.Remove(element);
+				context.SaveChanges();
+				return element.GetViewModel;
+			}
+			return null;
+		}
+
+	}
+}

Confectionery/ConfectioneryDatabaseImplement/Migrations/20230314061048_InitMigrate.Designer.cs

@@ -0,0 +1,156 @@
+// <auto-generated />
+using System;
+using ConfectioneryDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ConfectioneryDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ConfectioneryDatabase))]
+    [Migration("20230314061048_InitMigrate")]
+    partial class InitMigrate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Pastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PastryName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pastries");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.PastryComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("PastryComponents");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.PastryComponent", b =>
+                {
+                    b.HasOne("ConfectioneryDatabaseImplement.Models.Component", "Component")
+                        .WithMany("PastryComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDatabaseImplement.Models.Pastry", "Pastry")
+                        .WithMany("Components")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pastry");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("PastryComponents");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Pastry", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Migrations/20230314061048_InitMigrate.cs

@@ -0,0 +1,115 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ConfectioneryDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitMigrate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ComponentName = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PastryId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp with time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Pastries",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PastryName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Pastries", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PastryComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PastryId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PastryComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PastryComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PastryComponents_Pastries_PastryId",
+                        column: x => x.PastryId,
+                        principalTable: "Pastries",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PastryComponents_ComponentId",
+                table: "PastryComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PastryComponents_PastryId",
+                table: "PastryComponents",
+                column: "PastryId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "PastryComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Pastries");
+        }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Migrations/ConfectioneryDatabaseModelSnapshot.cs

@@ -0,0 +1,153 @@
+// <auto-generated />
+using System;
+using ConfectioneryDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ConfectioneryDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ConfectioneryDatabase))]
+    partial class ConfectioneryDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Pastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PastryName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pastries");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.PastryComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("PastryComponents");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.PastryComponent", b =>
+                {
+                    b.HasOne("ConfectioneryDatabaseImplement.Models.Component", "Component")
+                        .WithMany("PastryComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDatabaseImplement.Models.Pastry", "Pastry")
+                        .WithMany("Components")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pastry");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("PastryComponents");
+                });
+
+            modelBuilder.Entity("ConfectioneryDatabaseImplement.Models.Pastry", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Models/Component.cs

@@ -0,0 +1,61 @@
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+
+namespace ConfectioneryDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<PastryComponent> PastryComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Models/Order.cs

@@ -0,0 +1,70 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+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 Order : IOrderModel
+    {
+        [Required]
+        public int PastryId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        [Required]
+        public double Sum { get; set; }
+        [Required]
+        public OrderStatus Status { get; set; }
+        [Required]
+        public DateTime DateCreate { get; set; }
+
+        public DateTime? DateImplement { get; set; }
+
+        public int Id { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                PastryId = model.PastryId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryId = PastryId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Models/Pastry.cs

@@ -0,0 +1,107 @@
+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.Net;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryDatabaseImplement.Models
+{
+    public class Pastry : IPastryModel
+    {
+        public int Id { get; private set; }
+
+        [Required]
+        public string PastryName { get; private set; } = string.Empty;
+
+        [Required]
+        public double Price { get; private set; }
+
+        private Dictionary<int, (IComponentModel, int)>? _pastryComponents = null;
+
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get
+            {
+                if (_pastryComponents == null)
+                {
+                    _pastryComponents = Components.ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _pastryComponents;
+            }
+        }
+
+        [ForeignKey("PastryId")]
+        public virtual List<PastryComponent> Components { get; set; } = new();
+
+        public static Pastry? Create(ConfectioneryDatabase context ,PastryBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = model.Id,
+                PastryName = model.PastryName,
+                Price = model.Price,
+                Components = model.PastryComponents.Select(x => new PastryComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(PastryBindingModel? model)
+        {
+            PastryName = model.PastryName;
+            Price = model.Price;
+        }
+
+        public PastryViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryName = PastryName,
+            Price = Price,
+            PastryComponents = PastryComponents
+        };
+
+        public void UpdateComponents(ConfectioneryDatabase context, PastryBindingModel model)
+        {
+            var PastryComponents = context.PastryComponents.Where(rec => rec.PastryId == model.Id).ToList();
+            if (PastryComponents != null && PastryComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.PastryComponents.RemoveRange(PastryComponents.Where(rec => !model.PastryComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in PastryComponents)
+                {
+                    updateComponent.Count = model.PastryComponents[updateComponent.ComponentId].Item2;
+                    model.PastryComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var Pastry = context.Pastries.First(x => x.Id == Id);
+            foreach (var pc in model.PastryComponents)
+            {
+                context.PastryComponents.Add(new PastryComponent
+                {
+                    Pastry = Pastry,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _pastryComponents = null;
+        }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Models/PastryComponent.cs

@@ -0,0 +1,27 @@
+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 PastryComponent
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int PastryId { get; set; }
+
+        [Required]
+        public int ComponentId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Component Component { get; set; } = new();
+
+        public virtual Pastry Pastry { get; set; } = new();
+    }
+}

Confectionery/ConfectioneryFileImplement/ConfectioneryFileImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+    <ProjectReference Include="..\ConfectioneryDataModels\ConfectioneryDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/ConfectioneryFileImplement/DataFileSingleton.cs

@@ -0,0 +1,54 @@
+using ConfectioneryFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string PastryFileName = "Pastry.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Pastry> Pastries { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
+        public void SavePastries() => SaveData(Pastries, PastryFileName, "Pastries", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Pastries = LoadData(PastryFileName, "Pastry", x => Pastry.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,78 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.Components.Where(x => x.ComponentName.Contains(model.ComponentName)).Select(x => x.GetViewModel).ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Components.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,96 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return GetViewModel(source.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id));
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            foreach (var comp in source.Pastries)
+            {
+                if (comp.Id == order.PastryId)
+                {
+                    viewModel.PastryName = comp.PastryName;
+                    break;
+                }
+            }
+            return viewModel;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/PastryStorage.cs

@@ -0,0 +1,83 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement.Implements
+{
+    public class PastryStorage : IPastryStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public PastryStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public PastryViewModel? GetElement(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Pastries.FirstOrDefault(x => (!string.IsNullOrEmpty(model.PastryName) && x.PastryName == model.PastryName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                return new();
+            }
+            return source.Pastries.Where(x => x.PastryName.Contains(model.PastryName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<PastryViewModel> GetFullList()
+        {
+            return source.Pastries.Select(x => x.GetViewModel).ToList();
+        }
+
+        public PastryViewModel? Insert(PastryBindingModel model)
+        {
+            model.Id = source.Pastries.Count > 0 ? source.Pastries.Max(x => x.Id) + 1 : 1;
+            var newDoc = Pastry.Create(model);
+            if (newDoc == null)
+            {
+                return null;
+            }
+            source.Pastries.Add(newDoc);
+            source.SavePastries();
+            return newDoc.GetViewModel;
+        }
+
+        public PastryViewModel? Update(PastryBindingModel model)
+        {
+            var document = source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (document == null)
+            {
+                return null;
+            }
+            document.Update(model);
+            source.SavePastries();
+            return document.GetViewModel;
+        }
+        public PastryViewModel? Delete(PastryBindingModel model)
+        {
+            var document = source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (document == null)
+            {
+                return null;
+            }
+            document.Update(model);
+            source.SavePastries();
+            return document.GetViewModel;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Component.cs

@@ -0,0 +1,69 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement.Models
+{
+    internal class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+
+        public static Component? Create(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost,
+            };
+        }
+
+        public static Component? Create(XElement model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(model.Attribute("Id")!.Value),
+                ComponentName = model.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(model.Element("Cost")!.Value),
+            };
+        }
+
+        public void Update(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost,
+        };
+
+        public XElement GetXElement => new("Component", 
+            new XAttribute("Id", Id),
+            new XElement("ComponentName", ComponentName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Order.cs

@@ -0,0 +1,110 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int PastryId { get; private set; }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                PastryId = model.PastryId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            var order = new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PastryId = Convert.ToInt32(element.Element("PastryId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                DateCreate = DateTime.ParseExact(element.Element("DateCreate")!.Value, "G", null),
+            };
+            DateTime.TryParse(element.Element("DateImplement")!.Value, out DateTime dateImpl);
+
+            order.DateImplement = dateImpl;
+
+            if (!Enum.TryParse(element.Element("Status")!.Value, out OrderStatus status))
+            {
+                return null;
+            }
+            order.Status = status;
+            return order;
+        }
+
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            PastryId = model.PastryId;
+            Count = model.Count;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryId = PastryId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+        public XElement GetXElement => new("Order",
+          new XAttribute("Id", Id),
+          new XElement("PastryId", PastryId),
+          new XElement("Count", Count.ToString()),
+          new XElement("Sum", Sum.ToString()),
+          new XElement("Status", Status.ToString()),
+          new XElement("DateCreate", DateCreate.ToString()),
+          new XElement("DateImplement", DateImplement.ToString()));
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Pastry.cs

@@ -0,0 +1,98 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement.Models
+{
+    public class Pastry : IPastryModel
+    {
+        public int Id { get; private set; }
+
+        public string PastryName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public Dictionary<int, int> Components { get; private set; } = new();
+
+        private Dictionary<int, (IComponentModel, int)>? _pastryComponents = null;
+
+
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get
+            {
+                if (_pastryComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _pastryComponents = Components.ToDictionary(x => x.Key, y => ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!, y.Value));
+                }
+                return _pastryComponents;
+            }
+        }
+
+        public static Pastry? Create(PastryBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = model.Id,
+                PastryName = model.PastryName,
+                Price = model.Price,
+                Components = model.PastryComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Pastry? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PastryName = element.Element("PastryName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("PastryComponents")!.Elements("PastryComponent").ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(PastryBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PastryName = model.PastryName;
+            Price = model.Price;
+            Components = model.PastryComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _pastryComponents = null;
+        }
+
+        public PastryViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryName = PastryName,
+            Price = Price,
+            PastryComponents = PastryComponents
+        };
+
+        public XElement GetXElement => new("Pastry",
+             new XAttribute("Id", Id),
+             new XElement("PastryName", PastryName),
+             new XElement("Price", Price.ToString()),
+             new XElement("PastryComponents", Components.Select(x =>
+                 new XElement("PastryComponent",
+                 new XElement("Key", x.Key),
+                 new XElement("Value", x.Value))).ToArray()));
+    }
+}

Confectionery/ConfectioneryView/ConfectioneryView.csproj

@@ -9,6 +9,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
     <PackageReference Include="NLog" Version="5.1.2" />
     <PackageReference Include="NLog.Extensions.Logging" Version="5.2.2" />
@@ -17,6 +21,8 @@
   <ItemGroup>
     <ProjectReference Include="..\ConfectioneryBusinessLogic\ConfectioneryBusinessLogic.csproj" />
     <ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+    <ProjectReference Include="..\ConfectioneryDatabaseImplement\ConfectioneryDatabaseImplement.csproj" />
+    <ProjectReference Include="..\ConfectioneryFileImplement\ConfectioneryFileImplement.csproj" />
     <ProjectReference Include="..\ConfectioneryListImplement\ConfectioneryListImplement.csproj" />
   </ItemGroup>
 

Confectionery/ConfectioneryView/FormMain.Designer.cs

@@ -149,6 +149,7 @@
             this.MainMenuStrip = this.menuStrip1;
             this.Name = "FormMain";
             this.Text = "Кондитерская";
+            this.Load += new System.EventHandler(this.FormMain_Load);
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
             this.menuStrip1.ResumeLayout(false);
             this.menuStrip1.PerformLayout();

Confectionery/ConfectioneryView/FormPastries.Designer.cs

@@ -97,6 +97,7 @@
             this.Controls.Add(this.dataGridView);
             this.Name = "FormPastries";
             this.Text = "Кондитерские изделия";
+            this.Load += new System.EventHandler(this.FormPastries_Load);
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
             this.ResumeLayout(false);
 

Confectionery/ConfectioneryView/FormPastries.cs

@@ -26,6 +26,11 @@ namespace ConfectioneryView
             _logic = logic;
         }
 
+        private void FormPastries_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
         private void LoadData()
         {
             try

Confectionery/ConfectioneryView/Program.cs

@@ -1,7 +1,7 @@
 using ConfectioneryBusinessLogic.BusinessLogics;
 using ConfectioneryContracts.BusinessLogicsContracts;
 using ConfectioneryContracts.StoragesContracts;
-using ConfectioneryListImplement.Implements;
+using ConfectioneryDatabaseImplement.Implements;
 using ConfectioneryView;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;