+

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Component.cs

@@ -0,0 +1,50 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<ProductComponent> ProductComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Cost = model.Cost
+            };
+        }
+        public void Update (ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Cost = model.Cost;
+        }
+
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Cost = Cost
+        };
+
+        public int StoreKeeperId => throw new NotImplementedException();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Order.cs

@@ -0,0 +1,62 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Enums;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private 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; }
+        [Required]
+        public int ProductId { get; private set; }
+        public virtual Product? Product { get; set; }
+        public static Order? Create(ComputerHardwareStoreDBContext context, OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                ProductId = model.CannedId,
+                Product = context.Products.First(x => x.Id == model.ProductId)
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ProductId = ProductId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            ProductName = Product.ProductName
+        };
+    }

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Product.cs

@@ -0,0 +1,96 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Product : IProductModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _productComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> ProductComponents
+        {
+            get
+            {
+                if (_productComponents == null)
+                {
+                    _productComponents = Components
+                        .ToDictionary(c => c.ComponentId, c =>
+                        (c.Component as IComponentModel, c.Count));
+                }
+                return _productComponents;
+            }
+        }
+        [ForeignKey("ProductId")]
+        public virtual List<ProductComponent> Components { get; set; } = new();
+        [ForeignKey("ProductId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Product Create(ComputerHardwareStoreDBContext context, ProductBindingModel model)
+        {
+            return new Product()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Price = model.Price,
+                Components = model.ProductComponents.Select(x =>
+                new ProductComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(ProductBindingModel model)
+        {
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Price = model.Price;
+            
+        }
+        public ProductViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Price = Price,
+            ProductComponents = ProductComponents
+        };
+
+        public static void UpdateComponents(ComputerHardwareStoreDBContext context, ProductBindingModel model)
+        {
+            var productComponents = context.ProductComponents
+                .Where(pc => pc.ProductId == model.Id)
+                .ToList();
+            if (productComponents.Count != 0 && productComponents.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.ProductComponents
+                    .Where(pc => !model.ProductComponents.ContainsKey(pc.ComponentId))
+                    .ExecuteDelete();
+                // обновили количество у существующих записей
+                productComponents
+                    .ForEach(updateComponent =>
+                    {
+                        updateComponent.Count = model.ProductComponents[updateComponent.ComponentId].Item2;
+                        model.ProductComponents.Remove(updateComponent.ComponentId);
+                    });  
+            }
+            // добавили новые
+            context.ProductComponents
+                .AddRange(model.ProductComponents.Values
+                .Select(val => new ProductComponent()
+                {
+                    ProductId = model.Id,
+                    ComponentId = val.Item1.Id,
+                    Count = val.Item2
+                }));
+            context.SaveChanges();
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/ProductComponent.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class ProductComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ProductId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Product Product { get; set; } = new();
+    }
+}