public function getProductCategories()
 {
     $categoryList = array();
     $productCategories = new Products_Model_ProductCategoryGateway();
     $categories = $productCategories->fetchProductCategories();
     foreach ($categories as $category) {
         $categoryList[$category['product_category_id']] = $category['product_category_name'];
     }
     return $categoryList;
 }
 /**
  * Get a list of Categories and Build
  * the Select List for the Product Form
  */
 public function getProductCategories()
 {
     $categoryList = array();
     $productCategories = new Products_Model_ProductCategoryGateway();
     $categories = $productCategories->fetchProductCategories();
     if (!$categories) {
         return null;
     }
     $categories = $categories->toArray();
     //Build Product Category Select List
     $categoryList[''] = '***Select Product Type***';
     foreach ($categories as $category) {
         $categoryList[$category['product_category_id']] = $category['product_category_name'];
     }
     return $categoryList;
 }