I hate this shit

Contracts/BindingModels/SellBindingModel.cs

@@ -8,6 +8,7 @@ namespace Contracts.BindingModels
 {
 	public class SellBindingModel
 	{
+		public Guid Id { get; set; }
 		public DateTime DateSell { get; set; }
 	}
 }

Contracts/ViewModels/MediaFileViewModel.cs

@@ -1,4 +1,6 @@
-using System;
+using Contracts.BindingModels;
+using DataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -10,5 +12,18 @@ namespace Contracts.ViewModels
     {
         public Guid Id { get; set; }
         public string Location { get; set; } = string.Empty;
-    }
+        public string Name { get; set; } = string.Empty;
+        public Guid ProductId { get; set; }
+		public MediaFileBindingModel GetBindingModel()
+		{
+			return new MediaFileBindingModel
+			{
+				Id = Id,
+				Name = Name,
+				Location = Location,
+				ProductId = ProductId
+			};
+		}
+
+	}
 }

Contracts/ViewModels/ProductViewModel.cs

@@ -12,6 +12,9 @@ namespace Contracts.ViewModels
         public Guid Id { get; set; }
         public string Name { get; set; } = string.Empty;
         public int Price {  get; set; }
+        public double Rating { get; set; }
+        public bool IsBeingSold { get; set; }
+        public int Amount { get; set; }
         public List<MediaFileViewModel> MediaFiles { get; set; } = new();
     }
 }

Contracts/ViewModels/PurchaseViewModel.cs

@@ -11,7 +11,7 @@ namespace Contracts.ViewModels
 	public class PurchaseViewModel
 	{
 		public Guid Id { get; set; }
-		public DateTime PurchaseDate { get; set; }
+		public DateTime DatePurchase { get; set; }
 		public required IUser User { get; set; }
 		public required List<IProduct> Products { get; set; }
 		public PurchaseStatus Status { get; set; }

Contracts/ViewModels/SellViewModel.cs

@@ -10,7 +10,7 @@ namespace Contracts.ViewModels
 	public class SellViewModel
 	{
 		public Guid Id { get; set; }
-		public DateTime SellDate { get; set; }
+		public DateTime DateSell { get; set; }
 		public ISupplyDoc? SupplyDoc { get; set; }
 	}
 }

DatabaseImplement/Database.cs

@@ -21,5 +21,9 @@ namespace DatabaseImplement
 
 		public virtual DbSet<Role> Roles { get; set; } = null!;
 		public virtual DbSet<User> Users { get; set; } = null!;
+		public virtual DbSet<Sell> Sells { get; set; } = null!;
+		public virtual DbSet<Purchase> Purchases { get; set; } = null!;
+		public virtual DbSet<Product> Products { get; set; } = null!;
+		public virtual DbSet<MediaFile> MediaFiles { get; set; } = null!;
 	}
 }

DatabaseImplement/Models/MediaFile.cs

@@ -1,4 +1,6 @@
-using DataModels.Models;
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using DataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
@@ -13,10 +15,56 @@ namespace DatabaseImplement.Models
 		[Required]
 		public Guid Id { get; set; }
 		[Required]
-		public string Name { get; set; }
+		public string Name { get; set; } = string.Empty;
 		[Required]
-		public string Location { get; set; }
+		public string Location { get; set; } = string.Empty;
 		[Required]
 		public Guid ProductId { get; set; }
+
+		public MediaFileBindingModel GetBindingModel()
+		{
+			return new MediaFileBindingModel
+			{
+				Id = Id,
+				Name = Name,
+				Location = Location,
+				ProductId = ProductId
+			};
+		}
+
+		public static MediaFile ToMediaFileFromView(MediaFileViewModel model, MediaFile mediaFile)
+		{
+			return new MediaFile
+			{
+				Id = model.Id,
+				Name = model.Name,
+				Location = model.Location,
+				ProductId = model.ProductId
+			};
+		}
+
+		public static MediaFile ToMediaFileFromBinding(MediaFileBindingModel model, MediaFile mediaFile)
+		{
+			return new MediaFile
+			{
+				Id = model.Id,
+				Name = model.Name,
+				Location = model.Location,
+				ProductId = model.ProductId
+			};
+		}
+
+		public void Update(MediaFileBindingModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+
+			// Обновление свойств на основе модели привязки
+			Name = model.Name;
+			Location = model.Location;
+			ProductId = model.ProductId;
+		}
 	}
 }

DatabaseImplement/Models/Product.cs

@@ -1,4 +1,6 @@
-using DataModels.Models;
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using DataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
@@ -22,5 +24,49 @@ namespace DatabaseImplement.Models
 		public bool IsBeingSold { get; set; }
 		[Required]
 		public int Amount { get; set; }
+
+		public ProductBindingModel GetBindingModel() => new()
+		{
+			Id = Id,
+			Name = Name,
+			Price = Price,
+			Rate = Rate,
+			IsBeingSold = IsBeingSold,
+			Amount = Amount
+		};
+
+		public static Product ToProductFromView(ProductViewModel model, Product product) => new()
+		{
+			Id = model.Id,
+			Name = model.Name,
+			Price = model.Price,
+			Rate = model.Rating,
+			IsBeingSold = model.IsBeingSold,
+			Amount = model.Amount
+		};
+
+		public static Product ToProductFromBinding(ProductBindingModel model, Product product) => new()
+		{
+			Id = model.Id,
+			Name = model.Name,
+			Price = model.Price,
+			Rate = model.Rate,
+			IsBeingSold = model.IsBeingSold,
+			Amount = model.Amount
+		};
+
+		public void Update(ProductBindingModel model, Product product)
+		{
+			if (model is null)
+			{
+				throw new ArgumentNullException("Update product: binding model is null");
+			}
+
+			Name = model.Name;
+			Price = model.Price;
+			Rate = model.Rate;
+			IsBeingSold = model.IsBeingSold;
+			Amount = model.Amount;
+		}
 	}
 }

DatabaseImplement/Models/Purchase.cs

@@ -1,4 +1,6 @@
-using DataModels.Enums;
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using DataModels.Enums;
 using DataModels.Models;
 using System;
 using System.Collections.Generic;
@@ -16,6 +18,32 @@ namespace DatabaseImplement.Models
 		public DateTime DatePurchase { get; set; }
 		[Required]
 		public PurchaseStatus  Status { get; private set; } = PurchaseStatus.Unknown;
+		public PurchaseBindingModel GetBindingModel() => new()
+		{
+			Id = Id,
+			DatePurchase = DatePurchase
+		};
 
+		public static Purchase ToPurchaseFromView(PurchaseViewModel model, Purchase purchase) => new()
+		{
+			Id = model.Id,
+			DatePurchase = model.DatePurchase
+		};
+
+		public static Purchase ToPurchaseFromBinding(PurchaseBindingModel model, Purchase purchase) => new()
+		{
+			Id = model.Id,
+			DatePurchase = model.DatePurchase,
+		};
+
+		public void Update(PurchaseBindingModel model, Purchase purchase)
+		{
+			if (model is null)
+			{
+				throw new ArgumentNullException("Update purchase: binding model is null");
+			}
+
+			DatePurchase = purchase.DatePurchase;
+		}
 	}
 }

DatabaseImplement/Models/Sell.cs

@@ -1,4 +1,7 @@
-using System;
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using DataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -6,7 +9,36 @@ using System.Threading.Tasks;
 
 namespace DatabaseImplement.Models
 {
-	internal class Sell
+	public class Sell : ISell
 	{
+		public Guid Id { get; set; }
+		public DateTime DateSell { get; set; }
+
+		public SellBindingModel GetBindingModel() => new()
+		{
+			Id = Id,
+			DateSell = DateSell
+		};
+		public static Sell ToSellFromView(SellViewModel model, Sell sell) => new()
+		{
+			Id = model.Id,
+			DateSell = model.DateSell
+		};
+
+		public static Sell ToSellFromBinding(SellBindingModel model, Sell sell) => new()
+		{
+			Id = model.Id,
+			DateSell = model.DateSell,
+		};
+
+		public void Update(SellBindingModel model, Sell sell)
+		{
+			if (model is null)
+			{
+				throw new ArgumentNullException("Update user: binding model is null");
+			}
+
+			DateSell = sell.DateSell;
+		}
 	}
 }