/**
  * @param Category $category
  * @param Filter $filter
  * @return array
  */
 protected function setUpFilterQuery(Category $category, Filter $filter)
 {
     if ($filter->isMultiSelectFilter()) {
         $param = array($category->getUid() => $category->getFilterOptionTag());
     } else {
         $param = $category->getFilterOptionTag();
     }
     return array($filter->getUid() => $param);
 }
 /**
  * @param Category $category
  * @return array
  */
 protected function getFilterOptionByCategory(Category $category)
 {
     return array('uid' => $category->getUid(), 'title' => $category->getTitle(), 'tag' => $category->getFilterOptionTag());
 }