private static ProductManufacturerCollection DBMapping(DBProductManufacturerCollection dbCollection)
        {
            if (dbCollection == null)
            {
                return(null);
            }

            ProductManufacturerCollection collection = new ProductManufacturerCollection();

            foreach (DBProductManufacturer dbItem in dbCollection)
            {
                ProductManufacturer item = DBMapping(dbItem);
                collection.Add(item);
            }

            return(collection);
        }
        /// <summary>
        /// Gets a product manufacturer mapping collection
        /// </summary>
        /// <param name="ProductID">Product identifier</param>
        /// <returns>Product manufacturer mapping collection</returns>
        public static ProductManufacturerCollection GetProductManufacturersByProductID(int ProductID)
        {
            bool   showHidden = NopContext.Current.IsAdmin;
            string key        = string.Format(PRODUCTMANUFACTURERS_ALLBYPRODUCTID_KEY, showHidden, ProductID);
            object obj2       = NopCache.Get(key);

            if (ManufacturerManager.MappingsCacheEnabled && (obj2 != null))
            {
                return((ProductManufacturerCollection)obj2);
            }

            DBProductManufacturerCollection dbCollection = DBProviderManager <DBManufacturerProvider> .Provider.GetProductManufacturersByProductID(ProductID, showHidden);

            ProductManufacturerCollection productManufacturerCollection = DBMapping(dbCollection);

            if (ManufacturerManager.MappingsCacheEnabled)
            {
                NopCache.Max(key, productManufacturerCollection);
            }
            return(productManufacturerCollection);
        }