/**
  * ajax 获取疾病
  */
 public function actionGetDisease()
 {
     $request = Yii::$app->request;
     if ($request->isPost) {
         $class_level1 = $request->post('class_level1', '');
         $class_level2 = $request->post('class_level2', '');
         $name = $request->post('name', '');
         //疾病名称
         $page = $request->post('page', 1);
         //页码
         $condition = [];
         if (!empty($class_level1)) {
             $condition['class_level1'] = $class_level1;
         }
         if (!empty($class_level2)) {
             $condition['class_level2'] = $class_level2;
         }
         if (!empty($name)) {
             $condition['name'] = $name;
         }
         $obj_disease = new Disease();
         $total = $obj_disease->getCounts($condition);
         $length = 10;
         $paging = $this->helpPaging('pager_department')->setSize($length)->setPageSetSize(5);
         $offset = $paging->getOffset();
         $paging->setTotal($total);
         $res = $obj_disease->getDiseasesByCondition($condition, $offset, $length);
         $data = [];
         $data['disease'] = $res;
         $data['page_html'] = $paging;
         $data['page'] = $page;
         return $this->renderPartial('add_disease_search', $data);
     }
 }