Лабораторная работа 3.

TravelCompany/TravelCompany.sln

@@ -13,7 +13,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyBusinessLogic"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyListImplement", "TravelCompanyListImplement\TravelCompanyListImplement.csproj", "{0FF615FA-A053-4DF6-99E6-CFC50A1D88C9}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelCompanyFileImplement", "TravelCompanyFileImplement\TravelCompanyFileImplement.csproj", "{388A7F25-BA80-436B-85C2-479FFD9CD6F2}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelCompanyFileImplement", "TravelCompanyFileImplement\TravelCompanyFileImplement.csproj", "{388A7F25-BA80-436B-85C2-479FFD9CD6F2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelCompanyDatabaseImplement", "TravelCompanyDatabaseImplement\TravelCompanyDatabaseImplement.csproj", "{FD10A23B-E974-4B1B-A41D-B7F9343CE1A9}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -45,6 +47,10 @@ Global
 		{388A7F25-BA80-436B-85C2-479FFD9CD6F2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{388A7F25-BA80-436B-85C2-479FFD9CD6F2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{388A7F25-BA80-436B-85C2-479FFD9CD6F2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FD10A23B-E974-4B1B-A41D-B7F9343CE1A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FD10A23B-E974-4B1B-A41D-B7F9343CE1A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FD10A23B-E974-4B1B-A41D-B7F9343CE1A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FD10A23B-E974-4B1B-A41D-B7F9343CE1A9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

TravelCompany/TravelCompany/Program.cs

@@ -3,7 +3,7 @@ using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
 using TravelCompanyContracts.BusinessLogicsContracts;
 using TravelCompanyContracts.StoragesContracts;
-using TravelCompanyFileImplement.Implements;
+using TravelCompanyDatabaseImplement.Implements;
 using TravelCompanyBusinessLogic.BusinessLogic;
 
 namespace TravelCompany

TravelCompany/TravelCompany/TravelCompany.csproj

@@ -19,6 +19,10 @@
   </ItemGroup>
 
   <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.DependencyInjection" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
@@ -28,6 +32,7 @@
   <ItemGroup>
     <ProjectReference Include="..\TravelCompanyBusinessLogic\TravelCompanyBusinessLogic.csproj" />
     <ProjectReference Include="..\TravelCompanyContracts\TravelCompanyContracts.csproj" />
+    <ProjectReference Include="..\TravelCompanyDatabaseImplement\TravelCompanyDatabaseImplement.csproj" />
     <ProjectReference Include="..\TravelCompanyDataModels\TravelCompanyDataModels.csproj" />
     <ProjectReference Include="..\TravelCompanyFileImplement\TravelCompanyFileImplement.csproj" />
     <ProjectReference Include="..\TravelCompanyListImplement\TravelCompanyListImplement.csproj" />

TravelCompany/TravelCompanyDatabaseImplement/Implements/ConditionStorage.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class ConditionStorage : IConditionStorage
+    {
+            public List<ConditionViewModel> GetFullList()
+            {
+                using var context = new TravelCompanyDatabase();
+                return context.Conditions
+                        .Select(x => x.GetViewModel)
+                        .ToList();
+            }
+
+            public List<ConditionViewModel> GetFilteredList(ConditionSearchModel model)
+            {
+                if (string.IsNullOrEmpty(model.ConditionName))
+                {
+                    return new();
+                }
+                using var context = new TravelCompanyDatabase();
+                return context.Conditions
+                        .Where(x => x.ConditionName.Contains(model.ConditionName))
+                        .Select(x => x.GetViewModel)
+                        .ToList();
+            }
+
+            public ConditionViewModel? GetElement(ConditionSearchModel model)
+            {
+                if (string.IsNullOrEmpty(model.ConditionName) && !model.Id.HasValue)
+                {
+                    return null;
+                }
+                using var context = new TravelCompanyDatabase();
+                return context.Conditions
+                        .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ConditionName) && x.ConditionName == model.ConditionName) ||
+                                            (model.Id.HasValue && x.Id == model.Id))
+                        ?.GetViewModel;
+            }
+
+            public ConditionViewModel? Insert(ConditionBindingModel model)
+            {
+                var newCondition = Condition.Create(model);
+                if (newCondition == null)
+                {
+                    return null;
+                }
+                using var context = new TravelCompanyDatabase();
+                context.Conditions.Add(newCondition);
+                context.SaveChanges();
+                return newCondition.GetViewModel;
+            }
+
+            public ConditionViewModel? Update(ConditionBindingModel model)
+            {
+                using var context = new TravelCompanyDatabase();
+                var condition = context.Conditions.FirstOrDefault(x => x.Id == model.Id);
+                if (condition == null)
+                {
+                    return null;
+                }
+                condition.Update(model);
+                context.SaveChanges();
+                return condition.GetViewModel;
+            }
+
+            public ConditionViewModel? Delete(ConditionBindingModel model)
+            {
+                using var context = new TravelCompanyDatabase();
+                var element = context.Conditions.FirstOrDefault(rec => rec.Id == model.Id);
+                if (element != null)
+                {
+                    context.Conditions.Remove(element);
+                    context.SaveChanges();
+                    return element.GetViewModel;
+                }
+                return null;
+            }
+        }
+    }

TravelCompany/TravelCompanyDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new TravelCompanyDatabase();
+            return context.Orders
+            .Select(x => AccessTravelStorage(x.GetViewModel, context))
+            .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new TravelCompanyDatabase();
+            return context.Orders
+            .Where(x => x.Id == model.Id)
+            .Select(x => AccessTravelStorage(x.GetViewModel, context))
+            .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new TravelCompanyDatabase();
+            return AccessTravelStorage(context.Orders
+            .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+            ?.GetViewModel, context);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new TravelCompanyDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return AccessTravelStorage(newOrder.GetViewModel, context);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new TravelCompanyDatabase();
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return AccessTravelStorage(order.GetViewModel, context);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new TravelCompanyDatabase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return AccessTravelStorage(element.GetViewModel, context);
+            }
+            return null;
+        }
+        static OrderViewModel AccessTravelStorage(OrderViewModel model, TravelCompanyDatabase context)
+        {
+            if (model == null) return model;
+            string? travelName = context.Travels.FirstOrDefault(x => x.Id == model.TravelId)?.TravelName;
+            if (travelName != null) model.TravelName = travelName;
+            return model;
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Implements/TravelStorage.cs

@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.StoragesContracts;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.SearchModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace TravelCompanyDatabaseImplement.Implements
+{
+    public class TravelStorage : ITravelStorage
+    {
+        public List<TravelViewModel> GetFullList()
+        {
+            using var context = new TravelCompanyDatabase();
+            return context.Travels
+                    .Include(x => x.Conditions)
+                    .ThenInclude(x => x.Condition)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<TravelViewModel> GetFilteredList(TravelSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.TravelName))
+            {
+                return new();
+            }
+            using var context = new TravelCompanyDatabase();
+            return context.Travels
+                    .Include(x => x.Conditions)
+                    .ThenInclude(x => x.Condition)
+                    .Where(x => x.TravelName.Contains(model.TravelName))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public TravelViewModel? GetElement(TravelSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.TravelName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new TravelCompanyDatabase();
+            return context.Travels
+                .Include(x => x.Conditions)
+                .ThenInclude(x => x.Condition)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.TravelName) && x.TravelName == model.TravelName) ||
+                                (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public TravelViewModel? Insert(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDatabase();
+            var newTravel = Travel.Create(context, model);
+            if (newTravel == null)
+            {
+                return null;
+            }
+            context.Travels.Add(newTravel);
+            context.SaveChanges();
+            return newTravel.GetViewModel;
+        }
+
+        public TravelViewModel? Update(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var travel = context.Travels.FirstOrDefault(rec => rec.Id == model.Id);
+                if (travel == null)
+                {
+                    return null;
+                }
+                travel.Update(model);
+                context.SaveChanges();
+                travel.UpdateConditions(context, model);
+                transaction.Commit();
+                return travel.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public TravelViewModel? Delete(TravelBindingModel model)
+        {
+            using var context = new TravelCompanyDatabase();
+            var element = context.Travels
+                .Include(x => x.Conditions)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Travels.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20230319202545_InitialCreate.Designer.cs

@@ -0,0 +1,170 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using TravelCompanyDatabaseImplement;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(TravelCompanyDatabase))]
+    [Migration("20230319202545_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ConditionName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Conditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("TravelName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Travels");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ConditionId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConditionId");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany()
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Condition", "Condition")
+                        .WithMany("TravelConditions")
+                        .HasForeignKey("ConditionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany("Conditions")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Condition");
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Navigation("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Navigation("Conditions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20230319202545_InitialCreate.cs

@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Conditions",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ConditionName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Conditions", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Travels",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TravelName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Travels", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TravelId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Travels_TravelId",
+                        column: x => x.TravelId,
+                        principalTable: "Travels",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TravelConditions",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TravelId = table.Column<int>(type: "int", nullable: false),
+                    ConditionId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TravelConditions", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TravelConditions_Conditions_ConditionId",
+                        column: x => x.ConditionId,
+                        principalTable: "Conditions",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_TravelConditions_Travels_TravelId",
+                        column: x => x.TravelId,
+                        principalTable: "Travels",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_TravelId",
+                table: "Orders",
+                column: "TravelId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TravelConditions_ConditionId",
+                table: "TravelConditions",
+                column: "ConditionId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TravelConditions_TravelId",
+                table: "TravelConditions",
+                column: "TravelId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "TravelConditions");
+
+            migrationBuilder.DropTable(
+                name: "Conditions");
+
+            migrationBuilder.DropTable(
+                name: "Travels");
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20230319203248_fixDateImplementNN.Designer.cs

@@ -0,0 +1,169 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using TravelCompanyDatabaseImplement;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(TravelCompanyDatabase))]
+    [Migration("20230319203248_fixDateImplementNN")]
+    partial class fixDateImplementNN
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ConditionName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Conditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("TravelName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Travels");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ConditionId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConditionId");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany()
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Condition", "Condition")
+                        .WithMany("TravelConditions")
+                        .HasForeignKey("ConditionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany("Conditions")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Condition");
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Navigation("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Navigation("Conditions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/20230319203248_fixDateImplementNN.cs

@@ -0,0 +1,37 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class fixDateImplementNN : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "datetime2",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "datetime2");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "datetime2",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                oldClrType: typeof(DateTime),
+                oldType: "datetime2",
+                oldNullable: true);
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Migrations/TravelCompanyDatabaseModelSnapshot.cs

@@ -0,0 +1,166 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using TravelCompanyDatabaseImplement;
+
+#nullable disable
+
+namespace TravelCompanyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(TravelCompanyDatabase))]
+    partial class TravelCompanyDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ConditionName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Conditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("TravelName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Travels");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ConditionId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TravelId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConditionId");
+
+                    b.HasIndex("TravelId");
+
+                    b.ToTable("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany()
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.TravelCondition", b =>
+                {
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Condition", "Condition")
+                        .WithMany("TravelConditions")
+                        .HasForeignKey("ConditionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("TravelCompanyDatabaseImplement.Models.Travel", "Travel")
+                        .WithMany("Conditions")
+                        .HasForeignKey("TravelId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Condition");
+
+                    b.Navigation("Travel");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Condition", b =>
+                {
+                    b.Navigation("TravelConditions");
+                });
+
+            modelBuilder.Entity("TravelCompanyDatabaseImplement.Models.Travel", b =>
+                {
+                    b.Navigation("Conditions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Models/Condition.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class Condition : IConditionModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ConditionName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ConditionId")]
+        public virtual List<TravelCondition> TravelConditions { get; set; } = new();
+        public static Condition? Create(ConditionBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Condition()
+            {
+                Id = model.Id,
+                ConditionName = model.ConditionName,
+                Cost = model.Cost
+            };
+        }
+        public static Condition Create(ConditionViewModel model)
+        {
+            return new Condition
+            {
+                Id = model.Id,
+                ConditionName = model.ConditionName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ConditionBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ConditionName = model.ConditionName;
+            Cost = model.Cost;
+        }
+        public ConditionViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ConditionName = ConditionName,
+            Cost = Cost
+        };
+
+    }
+}
+

TravelCompany/TravelCompanyDatabaseImplement/Models/Order.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.Enums;
+using TravelCompanyDataModels.Models;
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int TravelId { 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 Travel Travel { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                TravelId = model.TravelId,
+                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;
+            if (model.DateImplement.HasValue) DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            TravelId = TravelId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Models/Travel.cs

@@ -0,0 +1,99 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyContracts.BindingModels;
+using TravelCompanyContracts.ViewModels;
+using TravelCompanyDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class Travel : ITravelModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string TravelName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IConditionModel, int)>? _travelConditions = null;
+        [NotMapped]
+        public virtual List<Order> Orders { get; set; } = new();
+        public Dictionary<int, (IConditionModel, int)> TravelConditions
+        {
+            get
+            {
+                if (_travelConditions == null)
+                {
+                    _travelConditions = Conditions.ToDictionary(recPC => recPC.ConditionId, recPC =>
+                   (recPC.Condition as IConditionModel, recPC.Count));
+                }
+                return _travelConditions;
+            }
+        }
+        [ForeignKey("TravelId")]
+        public virtual List<TravelCondition> Conditions { get; set; } = new();
+        public static Travel Create(TravelCompanyDatabase context,
+       TravelBindingModel model)
+        {
+            return new Travel()
+            {
+                Id = model.Id,
+                TravelName = model.TravelName,
+                Price = model.Price,
+                Conditions = model.TravelConditions.Select(x => new
+               TravelCondition
+                {
+                    Condition = context.Conditions.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(TravelBindingModel model)
+        {
+            TravelName = model.TravelName;
+            Price = model.Price;
+        }
+        public TravelViewModel GetViewModel => new()
+        {
+            Id = Id,
+            TravelName = TravelName,
+            Price = Price,
+            TravelConditions = TravelConditions
+        };
+        public void UpdateConditions(TravelCompanyDatabase context,
+       TravelBindingModel model)
+        {
+            var travelConditions = context.TravelConditions.Where(rec => rec.TravelId == model.Id).ToList();
+            if (travelConditions != null && travelConditions.Count > 0)
+            { // удалили те, которых нет в модели
+                context.TravelConditions.RemoveRange(travelConditions.Where(rec
+               => !model.TravelConditions.ContainsKey(rec.ConditionId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateCondition in travelConditions)
+                {
+                    updateCondition.Count =
+                   model.TravelConditions[updateCondition.ConditionId].Item2;
+                    model.TravelConditions.Remove(updateCondition.ConditionId);
+                }
+                context.SaveChanges();
+            }
+            var travel = context.Travels.First(x => x.Id == Id);
+            foreach (var pc in model.TravelConditions)
+            {
+                context.TravelConditions.Add(new TravelCondition
+                {
+                    Travel = travel,
+                    Condition = context.Conditions.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _travelConditions = null;
+        }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/Models/TravelCondition.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel;
+
+namespace TravelCompanyDatabaseImplement.Models
+{
+    public class TravelCondition
+    {
+        public int Id { get; set; }
+        [Required]
+        public int TravelId { get; set; }
+        [Required]
+        public int ConditionId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Condition Condition { get; set; } = new();
+        public virtual Travel Travel { get; set; } = new();
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/TravelCompanyDatabase.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TravelCompanyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace TravelCompanyDatabaseImplement
+{
+    public class TravelCompanyDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=TravelCompanyDatabaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Condition> Conditions { set; get; }
+        public virtual DbSet<Travel> Travels { set; get; }
+        public virtual DbSet<TravelCondition> TravelConditions { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

TravelCompany/TravelCompanyDatabaseImplement/TravelCompanyDatabaseImplement.csproj

@@ -0,0 +1,23 @@
+<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>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\TravelCompanyContracts\TravelCompanyContracts.csproj" />
+    <ProjectReference Include="..\TravelCompanyDataModels\TravelCompanyDataModels.csproj" />
+  </ItemGroup>
+
+</Project>