gx

@@ -127,11 +127,11 @@ class Product extends Base
     }
 
     public function setCategoryIdAttribute($value){
-        $this->attributes['category_id'] = Arr::arrToSet($value);
+        $this->attributes['category_id'] = ','.Arr::arrToSet($value).',';
     }
 
     public function getCategoryIdAttribute($value){
-        return Arr::setToArr($value);
+        return Arr::setToArr(trim($value,','));
     }
 
     public function setAttrIdAttribute($value){