public static void Seed(DatabaseContext context)
		{
			var laptop = new Product("Laptop");
			context.Products.Add(laptop);
			var laptop_review1 = new ProductReview("Good", laptop.Id);
			context.ProductReviews.Add(laptop_review1);
			var laptop_review2 = new ProductReview("Bad", laptop.Id);
			context.ProductReviews.Add(laptop_review2);
			var laptop_review3 = new ProductReview("Average", laptop.Id);
			context.ProductReviews.Add(laptop_review3);

			var keyboard = new Product("Keyboard");
			context.Products.Add(keyboard);
			var keyboard_review1 = new ProductReview("Good", keyboard.Id);
			context.ProductReviews.Add(keyboard_review1);
			var keyboard_review2 = new ProductReview("Bad", keyboard.Id);
			context.ProductReviews.Add(keyboard_review2);
			var keyboard_review3 = new ProductReview("Average", keyboard.Id);
			context.ProductReviews.Add(keyboard_review3);

			var mouse = new Product("Mouse");
			context.Products.Add(mouse);
			var mouse_review1 = new ProductReview("Good", mouse.Id);
			context.ProductReviews.Add(mouse_review1);
			var mouse_review2 = new ProductReview("Bad", mouse.Id);
			context.ProductReviews.Add(mouse_review2);
			var mouse_review3 = new ProductReview("Average", mouse.Id);
			context.ProductReviews.Add(mouse_review3);

			context.SaveChanges();
		}
		public void Update(ProductReview productReview)
		{
			_databaseContext.Entry(productReview).State = System.Data.Entity.EntityState.Modified;
		}