Реализация моделей и класса-наследника DbContext.

FoodOrders/AbstractFoodOrdersDatabaseImplement/AbstractFoodOrdersDatabase.cs

@@ -0,0 +1,29 @@
+using AbstractFoodOrdersDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersDatabaseImplement
+{
+    public class AbstractFoodOrdersDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+       optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-7A1PHA0\SQLEXPRESS;
+                Initial Catalog=AbstractFoodOrdersDatabaseFull;
+                Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Dish> Dishes { set; get; }
+        public virtual DbSet<DishComponent> DishComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

FoodOrders/AbstractFoodOrdersDatabaseImplement/AbstractFoodOrdersDatabaseImplement.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="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AbstractFoodOrdersContracts\AbstractFoodOrdersContracts.csproj" />
+    <ProjectReference Include="..\AbstractFoodOrdersDataModels\AbstractFoodOrdersDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FoodOrders/AbstractFoodOrdersDatabaseImplement/Models/Component.cs

@@ -0,0 +1,57 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersDataModels.Models;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace AbstractFoodOrdersDatabaseImplement.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<DishComponent> DishComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+
+}

FoodOrders/AbstractFoodOrdersDatabaseImplement/Models/Dish.cs

@@ -0,0 +1,101 @@
+using AbstractFoodOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+
+namespace AbstractFoodOrdersDatabaseImplement.Models
+{
+    public class Dish : IDishModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string DishName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _dishComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> DishComponents
+        {
+            get
+            {
+                if (_dishComponents == null)
+                {
+                    _dishComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _dishComponents;
+            }
+        }
+        [ForeignKey("ProductId")]
+        public virtual List<DishComponent> Components { get; set; } = new();
+        [ForeignKey("ProductId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Dish Create(AbstractFoodOrdersDatabase context,
+       DishBindingModel model)
+        {
+            return new Dish()
+            {
+                Id = model.Id,
+                DishName = model.DishName,
+                Price = model.Price,
+                Components = model.DishComponents.Select(x => new
+               DishComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(DishBindingModel model)
+        {
+            DishName = model.DishName;
+            Price = model.Price;
+        }
+        public DishViewModel GetViewModel => new()
+        {
+            Id = Id,
+            DishName = DishName,
+            Price = Price,
+            DishComponents = DishComponents
+        };
+        public void UpdateComponents(AbstractFoodOrdersDatabase context,
+       DishBindingModel model)
+        {
+            var dishComponents = context.DishComponents.Where(rec =>
+           rec.DishId == model.Id).ToList();
+            if (dishComponents != null && dishComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.DishComponents.RemoveRange(dishComponents.Where(rec
+               => !model.DishComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in dishComponents)
+                {
+                    updateComponent.Count =
+                   model.DishComponents[updateComponent.ComponentId].Item2;
+                    model.DishComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var dish = context.Dishes.First(x => x.Id == Id);
+            foreach (var pc in model.DishComponents)
+            {
+                context.DishComponents.Add(new DishComponent
+                {
+                    Dish = dish,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _dishComponents = null;
+        }
+    }
+}

FoodOrders/AbstractFoodOrdersDatabaseImplement/Models/DishComponent.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersDatabaseImplement.Models
+{
+    public class DishComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int DishId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Dish Dish { get; set; } = new();
+    }
+}

FoodOrders/AbstractFoodOrdersDatabaseImplement/Models/Order.cs

@@ -0,0 +1,65 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersDataModels.Enums;
+using AbstractFoodOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int DishId { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; }
+        [Required]
+        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,
+                DishId = model.DishId,
+                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,
+            DishId = DishId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

FoodOrders/FoodOrders.sln

@@ -13,7 +13,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractFoodOrdersBusinessL
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractFoodOrdersListImplement", "AbstractFoodOrdersListImplement\AbstractFoodOrdersListImplement.csproj", "{275ED134-536F-4025-BE10-2718F66FBD10}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractFoodOrdersFileImplement", "AbstractShopFileImplement\AbstractFoodOrdersFileImplement.csproj", "{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractFoodOrdersFileImplement", "AbstractShopFileImplement\AbstractFoodOrdersFileImplement.csproj", "{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractFoodOrdersDatabaseImplement", "AbstractFoodOrdersDatabaseImplement\AbstractFoodOrdersDatabaseImplement.csproj", "{E6FA5D86-8EBB-46C7-93D5-CE9FFC7A3566}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -45,6 +47,10 @@ Global
 		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E6FA5D86-8EBB-46C7-93D5-CE9FFC7A3566}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E6FA5D86-8EBB-46C7-93D5-CE9FFC7A3566}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E6FA5D86-8EBB-46C7-93D5-CE9FFC7A3566}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E6FA5D86-8EBB-46C7-93D5-CE9FFC7A3566}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FoodOrders/FoodOrders/FoodOrders.csproj

@@ -9,8 +9,12 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
-    <PackageReference Include="NLog.Extensions.Logging" Version="5.2.2" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.2.3" />
   </ItemGroup>
 
   <ItemGroup>