public static void InsertPurchaseIngredient(Purchase_Ingredient ingredient)
        {
            string query =
                "BEGIN " +
                "insert_purchase_ingredient(" + ingredient.Ingredient_ID + ", " + ingredient.Amount + "); " +
                "END;";

            DB_Handler.ExecuteQuery(query);
        }
        private static Purchase_Ingredient RowToEntity(DataRow row)
        {
            var ingredient = new Purchase_Ingredient
            {
                Ingredient_Name = row["Name"].ToString(),
                Unit_Cost       = Int32.Parse(row["Unit_Cost"].ToString()),
                Ingredient_ID   = Int32.Parse(row["Id"].ToString()),
                Amount          = 0.0d
            };

            return(ingredient);
        }