function getAllStoresName()
 {
     $result = CouponCategories::find()->orderBy('Name')->distinct(true)->select('Name')->all();
     $type = array();
     $ind = 0;
     foreach ($result as $value) {
         $type[$ind++] = $value->Name;
     }
     return $type;
 }
 public static function getAllCouponCategories()
 {
     $categories = CouponCategories::find()->limit(10)->all();
     return $categories;
 }