private static ProductPictureCollection DBMapping(DBProductPictureCollection dbCollection)
        {
            if (dbCollection == null)
                return null;

            ProductPictureCollection collection = new ProductPictureCollection();
            foreach (DBProductPicture dbItem in dbCollection)
            {
                ProductPicture item = DBMapping(dbItem);
                collection.Add(item);
            }

            return collection;
        }
        /// <summary>
        /// Gets all product picture mappings by product identifier
        /// </summary>
        /// <param name="ProductID">Product identifier</param>
        /// <returns>Product picture mapping collection</returns>
        public override DBProductPictureCollection GetProductPicturesByProductID(int ProductID)
        {
            DBProductPictureCollection productPictureCollection = new DBProductPictureCollection();
            Database db = NopSqlDataHelper.CreateConnection(_sqlConnectionString);
            DbCommand dbCommand = db.GetStoredProcCommand("Nop_ProductPictureLoadAllByProductID");
            db.AddInParameter(dbCommand, "ProductID", DbType.Int32, ProductID);
            using (IDataReader dataReader = db.ExecuteReader(dbCommand))
            {
                while (dataReader.Read())
                {
                    DBProductPicture productPicture = GetProductPictureFromReader(dataReader);
                    productPictureCollection.Add(productPicture);
                }
            }

            return productPictureCollection;
        }