/**
  * showCategotyTree4Patient 
  * 展示可勾选的目录树
  * @param mixed $request 
  * @param mixed $response 
  * @access public
  * @return void
  */
 public function ajaxShowCategoryTree4Patient($request, $response)
 {
     $categoryType = LabelCategory::TYPE_PATIENTFILE;
     $response->categories = DAL::get()->find_all_by_type('LabelCategory', LabelCategory::DELETED_NO, $categoryType);
     $response->categoryType = $categoryType;
     $model = new ModelDto($response->categories, $isShowQuestion = true);
     $categoryArray = $model->data4CategoryParent();
     echo Json::real_encode($categoryArray);
     return self::DIRECT_OUTPUT;
 }