3 работа финаль

добавлено отображение SushiName в OrderViewModel

SushiBar/SushiBar.sln

@@ -13,6 +13,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SushiBarDataModels", "Sushi
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SushiBarListImplement", "SushiBarListImplement\SushiBarListImplement.csproj", "{FE2BCA7B-A6E4-4628-9DCE-2F04F258BE1F}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SushiBarFileImplement", "SushiBarFileImplement\SushiBarFileImplement.csproj", "{4F721F76-EF7A-4FF3-80B0-77A459D091D7}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SushiBarDatabaseImplement", "SushiBarDatabaseImplement\SushiBarDatabaseImplement.csproj", "{C9C66AFC-1246-4A0C-AB70-8D5C0CF311D9}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +43,14 @@ Global
 		{FE2BCA7B-A6E4-4628-9DCE-2F04F258BE1F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FE2BCA7B-A6E4-4628-9DCE-2F04F258BE1F}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FE2BCA7B-A6E4-4628-9DCE-2F04F258BE1F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4F721F76-EF7A-4FF3-80B0-77A459D091D7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4F721F76-EF7A-4FF3-80B0-77A459D091D7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4F721F76-EF7A-4FF3-80B0-77A459D091D7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4F721F76-EF7A-4FF3-80B0-77A459D091D7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C9C66AFC-1246-4A0C-AB70-8D5C0CF311D9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C9C66AFC-1246-4A0C-AB70-8D5C0CF311D9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C9C66AFC-1246-4A0C-AB70-8D5C0CF311D9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C9C66AFC-1246-4A0C-AB70-8D5C0CF311D9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

SushiBar/SushiBar/Program.cs

@@ -5,7 +5,7 @@ using SushiBar.Forms;
 using SushiBarBusinessLogic.BusinessLogics;
 using SushiBarContracts.BusinessLogicsContracts;
 using SushiBarContracts.StoragesContracts;
-using SushiBarListImplement.Implements;
+using SushiBarDatabaseImplement.Implements;
 
 namespace SushiBar
 {

SushiBar/SushiBar/nlog.config

@@ -1,10 +1,10 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8" ?>
 <configuration>
 	<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  autoReload="true" internalLogLevel="Info">
 		<targets>
-			<target xsi:type="File" name="tofile" fileName="carlog-${shortdate}.log" />
+			<target xsi:type="File" name="tofile" fileName="sushibar-${shortdate}.log" />
 		</targets>
 		<rules>
 			<logger name="*" minlevel="Debug" writeTo="tofile" />

SushiBar/SushiBarDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,82 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarDatabaseImplement.Models;
+
+namespace SushiBarDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new SushiBarDatabase();
+            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 SushiBarDatabase();
+            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 SushiBarDatabase();
+            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 SushiBarDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            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 SushiBarDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,90 @@
+using Microsoft.EntityFrameworkCore;
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarDatabaseImplement.Models;
+using System.Collections.Generic;
+
+namespace SushiBarDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new SushiBarDatabase();
+            return context.Orders
+                .ToList()
+                    .Select(x => x.GetViewModel(context))
+                    .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            var element = GetElement(model);
+            if (element != null)
+            {
+                result.Add(element);
+            }
+            return new();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new SushiBarDatabase();
+            return context.Orders
+                .FirstOrDefault(x => x.Id == model.Id)?.GetViewModel(context);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var newOrder = Order.Create(context, model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel(context);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var order = context.Orders.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (order == null)
+                {
+                    return null;
+                }
+                order.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return order.GetViewModel(context);
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var element = context.Orders
+                .FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel(context);
+            }
+            return null;
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Implements/SushiStorage.cs

@@ -0,0 +1,105 @@
+using Microsoft.EntityFrameworkCore;
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarDatabaseImplement.Models;
+
+namespace SushiBarDatabaseImplement.Implements
+{
+    public class SushiStorage : ISushiStorage
+    {
+        public List<SushiViewModel> GetFullList()
+        {
+            using var context = new SushiBarDatabase();
+            return context.Sushis
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+
+        }
+        public List<SushiViewModel> GetFilteredList(SushiSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SushiName))
+            {
+                return new();
+            }
+            using var context = new SushiBarDatabase();
+            return context.Sushis
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .Where(x => x.SushiName.Contains(model.SushiName))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+        public SushiViewModel? GetElement(SushiSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SushiName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new SushiBarDatabase();
+            return context.Sushis
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.SushiName)
+                && x.SushiName == model.SushiName) 
+                || (model.Id.HasValue && x.Id == model.Id))
+                    ?.GetViewModel;
+        }
+        public SushiViewModel? Insert(SushiBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var newSushi = Sushi.Create(context, model);
+            if (newSushi == null)
+            {
+                return null;
+            }
+            context.Sushis.Add(newSushi);
+            context.SaveChanges();
+            return newSushi.GetViewModel;
+        }
+        public SushiViewModel? Update(SushiBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var sushi = context.Sushis.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (sushi == null)
+                {
+                    return null;
+                }
+                sushi.Update(model);
+                context.SaveChanges();
+                sushi.UpdateComponents(context, model);
+                transaction.Commit();
+                return sushi.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+
+        }
+        public SushiViewModel? Delete(SushiBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var element = context.Sushis
+                .Include(x => x.Components)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Sushis.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Migrations/20240313061851_InitialCreate2.Designer.cs

@@ -0,0 +1,169 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using SushiBarDatabaseImplement;
+
+#nullable disable
+
+namespace SushiBarDatabaseImplement.Migrations
+{
+    [DbContext(typeof(SushiBarDatabase))]
+    [Migration("20240313061851_InitialCreate2")]
+    partial class InitialCreate2
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.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("SushiBarDatabaseImplement.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>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("SushiName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sushis");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", 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>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Component", "Component")
+                        .WithMany("SushiComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", "Sushi")
+                        .WithMany("Components")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Sushi");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Migrations/20240313061851_InitialCreate2.cs

@@ -0,0 +1,126 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace SushiBarDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate2 : 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: "Sushis",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    SushiName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Sushis", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    SushiId = 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);
+                    table.ForeignKey(
+                        name: "FK_Orders_Sushis_SushiId",
+                        column: x => x.SushiId,
+                        principalTable: "Sushis",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SushiComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    SushiId = 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_SushiComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_SushiComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_SushiComponents_Sushis_SushiId",
+                        column: x => x.SushiId,
+                        principalTable: "Sushis",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_SushiId",
+                table: "Orders",
+                column: "SushiId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SushiComponents_ComponentId",
+                table: "SushiComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SushiComponents_SushiId",
+                table: "SushiComponents",
+                column: "SushiId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "SushiComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Sushis");
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Migrations/20240313064708_InitialCreate3.Designer.cs

@@ -0,0 +1,169 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using SushiBarDatabaseImplement;
+
+#nullable disable
+
+namespace SushiBarDatabaseImplement.Migrations
+{
+    [DbContext(typeof(SushiBarDatabase))]
+    [Migration("20240313064708_InitialCreate3")]
+    partial class InitialCreate3
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.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("SushiBarDatabaseImplement.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>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("SushiName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sushis");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", 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>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Component", "Component")
+                        .WithMany("SushiComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", "Sushi")
+                        .WithMany("Components")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Sushi");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Migrations/20240313064708_InitialCreate3.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SushiBarDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate3 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Migrations/SushiBarDatabaseModelSnapshot.cs

@@ -0,0 +1,166 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using SushiBarDatabaseImplement;
+
+#nullable disable
+
+namespace SushiBarDatabaseImplement.Migrations
+{
+    [DbContext(typeof(SushiBarDatabase))]
+    partial class SushiBarDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.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("SushiBarDatabaseImplement.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>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("SushiName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sushis");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", 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>("SushiId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Component", "Component")
+                        .WithMany("SushiComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", "Sushi")
+                        .WithMany("Components")
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Sushi");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("SushiComponents");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Models/Component.cs

@@ -0,0 +1,48 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SushiBarDatabaseImplement.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<SushiComponent> SushiComponents { 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 void Update (ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

SushiBar/SushiBarDatabaseImplement/Models/Order.cs

@@ -0,0 +1,63 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Enums;
+using SushiBarDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace SushiBarDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int SushiId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        [Required]
+        public double Sum { get; set; }
+        [Required]
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        [Required]
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; }
+        public static Order Create(SushiBarDatabase context, OrderBindingModel model)
+        {
+            return new Order()
+            {
+                Id = model.Id,
+                SushiId = model.SushiId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            Id = model.Id;
+            SushiId = model.SushiId;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel(SushiBarDatabase context)
+        {
+            return new()
+            {
+                Id = Id,
+                SushiId = SushiId,
+                Count = Count,
+                Sum = Sum,
+                Status = Status,
+                DateCreate = DateCreate,
+                DateImplement = DateImplement,
+                SushiName = context.Sushis
+                .Where(s => s.Id == SushiId)
+                .Select(s => s.SushiName)
+                .First(),
+            };
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Models/Sushi.cs

@@ -0,0 +1,94 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SushiBarDatabaseImplement.Models
+{
+    public class Sushi : ISushiModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string SushiName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _sushiComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> SushiComponents
+        {
+            get
+            {
+                if (_sushiComponents == null)
+                {
+                    _sushiComponents = Components
+                        .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                        (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _sushiComponents;
+            }
+        }
+        [ForeignKey("SushiId")]
+        public virtual List<SushiComponent> Components { get; set; } = new();
+        [ForeignKey("SushiId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Sushi Create(SushiBarDatabase context, SushiBindingModel model)
+        {
+            return new Sushi()
+            {
+                Id = model.Id,
+                SushiName = model.SushiName,
+                Price = model.Price,
+                Components = model.SushiComponents.Select(x =>
+                new SushiComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(SushiBindingModel model)
+        {
+            SushiName = model.SushiName;
+            Price = model.Price;
+        }
+        public SushiViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SushiName = SushiName,
+            Price = Price,
+            SushiComponents = SushiComponents
+        };
+        public void UpdateComponents(SushiBarDatabase context, SushiBindingModel model)
+        {
+            var sushiComponents = context.SushiComponents.Where(rec =>
+            rec.SushiId == model.Id).ToList();
+            if (sushiComponents !=  null && sushiComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.SushiComponents.RemoveRange(sushiComponents.Where(rec =>
+                !model.SushiComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in sushiComponents)
+                {
+                    updateComponent.Count = model.SushiComponents[updateComponent.ComponentId].Item2;
+                    model.SushiComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var sushi = context.Sushis.First(x => x.Id == Id);
+            foreach (var pc in model.SushiComponents)
+            {
+                context.SushiComponents.Add(new SushiComponent
+                {
+                    Sushi = sushi,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _sushiComponents = null;
+
+        }
+    }
+}

SushiBar/SushiBarDatabaseImplement/Models/SushiComponent.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace SushiBarDatabaseImplement.Models
+{
+    public class SushiComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int SushiId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Sushi Sushi { get; set; } = new();
+
+    }
+}

SushiBar/SushiBarDatabaseImplement/SushiBarDatabase.cs

@@ -0,0 +1,23 @@
+using Microsoft.EntityFrameworkCore;
+using SushiBarDatabaseImplement.Models;
+
+namespace SushiBarDatabaseImplement
+{
+    public class SushiBarDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"Host=localhost;Database=SushiBar_db;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Sushi> Sushis { set; get; }
+        public virtual DbSet<SushiComponent> SushiComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

SushiBar/SushiBarFileImplement/DataFileSingleton.cs

@@ -0,0 +1,49 @@
+using SushiBarFileImplement.Models;
+using System.Linq;
+using System.Xml.Linq;
+
+namespace SushiBarFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string SushiFileName = "Sushi.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Sushi> Sushis { 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 SaveSushis() => SaveData(Sushis, SushiFileName, "Sushis", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Sushis = LoadData(SushiFileName, "Sushi", x => Sushi.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);
+            }
+        }
+    }
+}

SushiBar/SushiBarFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,76 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarFileImplement.Models;
+
+namespace SushiBarFileImplement.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;
+        }
+    }
+}

SushiBar/SushiBarFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,80 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarFileImplement.Models;
+
+namespace SushiBarFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => AttachSushiName(x.GetViewModel)).ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders.Where(x =>
+            x.Id == model.Id).Select(x =>
+            AttachSushiName(x.GetViewModel)).ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return AttachSushiName(source.Orders.FirstOrDefault(x =>
+            (x.Id == model.Id))?.GetViewModel);
+        }
+        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 AttachSushiName(newOrder.GetViewModel);
+        }
+        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 AttachSushiName(order.GetViewModel);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+                return AttachSushiName(element.GetViewModel);
+            }
+            return null;
+        }
+        private OrderViewModel AttachSushiName(OrderViewModel ?model)
+        {
+            if (model == null) { return null; }
+            model.SushiName = source.Sushis.First(x => x.Id == model.SushiId).SushiName;
+            return model;
+        }
+    }
+}

SushiBar/SushiBarFileImplement/Implements/SushiStorage.cs

@@ -0,0 +1,81 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.SearchModels;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarFileImplement.Models;
+
+namespace SushiBarFileImplement.Implements
+{
+    public class SushiStorage : ISushiStorage
+    {
+        private readonly DataFileSingleton source;
+        public SushiStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<SushiViewModel> GetFullList()
+        {
+            return source.Sushis.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<SushiViewModel> GetFilteredList(SushiSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SushiName))
+            {
+                return new();
+            }
+            return source.Sushis.Where(x => 
+            x.SushiName.Contains(model.SushiName)).Select(x => 
+            x.GetViewModel).ToList();
+        }
+
+        public SushiViewModel? GetElement(SushiSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SushiName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Sushis.FirstOrDefault(x => 
+            (!string.IsNullOrEmpty(model.SushiName) &&
+            x.SushiName == model.SushiName) || 
+            (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public SushiViewModel? Insert(SushiBindingModel model)
+        {
+            model.Id = source.Sushis.Count > 0 ? source.Sushis.Max(x => x.Id) + 1 : 1;
+            var newSushi = Sushi.Create(model);
+            if (newSushi == null)
+            {
+                return null;
+            }
+            source.Sushis.Add(newSushi);
+            source.SaveSushis();
+            return newSushi.GetViewModel;
+        }
+
+        public SushiViewModel? Update(SushiBindingModel model)
+        {
+            var sushi = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
+            if (sushi == null)
+            {
+                return null;
+            }
+            sushi.Update(model);
+            source.SaveSushis();
+            return sushi.GetViewModel;
+        }
+
+        public SushiViewModel? Delete(SushiBindingModel model)
+        {
+            var element = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Sushis.Remove(element);
+                source.SaveSushis();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

SushiBar/SushiBarFileImplement/Models/Component.cs

@@ -0,0 +1,59 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Models;
+using System.Xml.Linq;
+
+namespace SushiBarFileImplement.Models
+{
+    public 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 element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.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()));
+    }
+}

SushiBar/SushiBarFileImplement/Models/Order.cs

@@ -0,0 +1,87 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Enums;
+using SushiBarDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace SushiBarFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int SushiId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                SushiId = model.SushiId,
+                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;
+            }
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                SushiId = Convert.ToInt32(element.Element("SushiId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value.ToString()),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
+                Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SushiId = SushiId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("SushiId", SushiId),
+            new XElement("Count", Count),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString())
+        );
+    }
+}

SushiBar/SushiBarFileImplement/Models/Sushi.cs

@@ -0,0 +1,87 @@
+using SushiBarContracts.BindingModels;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Models;
+using System.Xml.Linq;
+
+namespace SushiBarFileImplement.Models
+{
+    public class Sushi : ISushiModel
+    {
+        public int Id { get; private set; }
+        public string SushiName { 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)>? _sushiComponents = null;
+        public Dictionary<int, (IComponentModel, int)> SushiComponents
+        {
+            get
+            {
+                if (_sushiComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _sushiComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _sushiComponents;
+            }
+        }
+        public static Sushi? Create(SushiBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Sushi()
+            {
+                Id = model.Id,
+                SushiName = model.SushiName,
+                Price = model.Price,
+                Components = model.SushiComponents.ToDictionary(x => x.Key, x
+               => x.Value.Item2)
+            };
+        }
+        public static Sushi? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Sushi()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                SushiName = element.Element("SushiName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("SushiComponents")!.Elements("SushiComponent").ToDictionary(x =>
+                Convert.ToInt32(x.Element("Key")?.Value), x =>
+                Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(SushiBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            SushiName = model.SushiName;
+            Price = model.Price;
+            Components = model.SushiComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _sushiComponents = null;
+        }
+        public SushiViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SushiName = SushiName,
+            Price = Price,
+            SushiComponents = SushiComponents
+        };
+        public XElement GetXElement => new("Sushi",
+            new XAttribute("Id", Id),
+            new XElement("SushiName", SushiName),
+            new XElement("Price", Price.ToString()),
+            new XElement("SushiComponents", Components.Select(x =>
+            new XElement("SushiComponent",
+                new XElement("Key", x.Key),
+                new XElement("Value", x.Value))).ToArray()));
+    }
+}