通過函數cakephp 2

Question

函數我有教師平均速度的函數，我保存變量的平均值$result我想將變量傳遞給get_teacher_average_rating並打印平均值，但我嘗試這樣做，我有錯誤

通知（8）：未定義變量：導致 [APP /控制器/ RatingSchoolsController.php 30行]警告（2）： 無法修改標題信息 - 頭已經發出（輸出 開始在 /應用/MAMP/htdocs/classera-core-code/lib/Cake/Utility/Debugger.php:795） [APP/Controller/AppController.php，li NE 67]

我怎麼能解決這個問題，並打印平均get_teacher_average_rating

public function set_teacher_average_rating($result) 
    { 
     $this->autoRender = false; 
     if($this->request->is('get')) 
     { 
      $author_id = $this->request->query('author_id');// 
      $rate = $this->Rating->find('all',array('conditions'=>array('author_id'=> $author_id), 'fields'=> array('AVG(Rating.value) as averageRating'), 'recursive' =>-1)); 

      $average = $rate[0][0]['averageRating']; 
      $result = array('success'=>'1' , 'average' => $average); 
     } 
     else{ 
      $result = array('success'=>'0','message'=>'request type is not GET'); 
     } 
     echo json_encode($result); 
    } 


public function get_teacher_average_rating() 
    { 
     $this->autoRender = false; 
       $average = $this->set_teacher_average_rating($result); 
       $rate = $this->Rating->find('all',array('conditions'=>array('author_id'=> $author_id))); 

        //get rate teacher 
           echo json_encode($average); 



     } 

Answer 1

試試這個如果函數set_teacher_average_rating（）不被任何其他函數調用：

public function set_teacher_average_rating() 
    { 
     $this->autoRender = false; 
     if($this->request->is('get')) 
     { 
      $author_id = $this->request->query('author_id');// 
      $rate = $this->Rating->find('all',array('conditions'=>array('author_id'=> $author_id), 'fields'=> array('AVG(Rating.value) as averageRating'), 'recursive' =>-1)); 

      $average = $rate[0][0]['averageRating']; 
      $result = array('success'=>'1' , 'average' => $average); 
     } 
     else{ 
      $result = array('success'=>'0','message'=>'request type is not GET'); 
     } 
     return $result; 
    } 


public function get_teacher_average_rating() 
    { 
     $this->autoRender = false; 
       $average = $this->set_teacher_average_rating(); 
       $rate = $this->Rating->find('all',array('conditions'=>array('author_id'=> $author_id))); 

        //get rate teacher 
           echo json_encode($average); 



     }