ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Product.cs

@@ -39,12 +39,15 @@ namespace ComputerHardwareStoreDatabaseImplement.Models
                 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()
+                Components = context.Components
+                    .Where(c => model.ProductComponents.ContainsKey(c.Id))
+                    .Select(c => new ProductComponent()
+                    {
+                        ProductId = model.Id,
+                        ComponentId = c.Id,
+                        Component = c,
+                        Count = model.ProductComponents[c.Id].Item2
+                    }).ToList(),
             };
         }
         public void Update(ProductBindingModel model)