問題CakePHP中

Question

更新您好我試圖更新其已經保存在數據庫表中，但一些如何I T正在創造新的記錄，而不是更新現有的用戶數據一個。這是我的代碼。

function admin() 
{  
    $conditions = "id"; 
    $recursive = 1; 
    $data = $this->User->find('all'); 
    $counter = $this->User->find('count'); 
    $this->set('counter', $counter); 
    $this->set('combo', $data); 

    $username = $this->Session->read('user'); 
    if ($username) 
    { 
     $results = $this->User->findByUsername($username); 
     $this->set('User', $results['User']); 
     $this->set('last_login', $this->Session->read('last_login')); 
     if (!empty($this->data)) 
     { 


      $this->data["User"]["access_right"] = implode(",",$this->data["User"]["access_right"]); 
      $this->User->set($this->data); 
      if ($this->User->validates()) 
      {      
       $this->data['User']['password'] = md5($this->data['User']['password']); 
       if($this->User->saveAll($this->data, TRUE, array('username','password','first_name','last_name','notes','access_right'))) 
       { 
        $this->redirect(array('action' => 'admin')); 
        $this->Session->setFlash('User Data Updated.'); 
       } 
       else 
       { 
        $this->Session->setFlash('There was a problem while Updating User.'); 
       }      
      } 
     } 
    } 
    else 
    { 
     $this->redirect(array('action' => 'login')); 
     exit(); 
    }   
} 

，這是我的模型

<?php 
class User extends AppModel 
{ 
    var $name = 'User'; 
    var $validate = array(
     'username'=>array(
        /* 'alphaNumeric'=>array(
       'rule'=>'alphaNumeric', 
       'required'=>true, 
       'message'=>'Alphabets and numbers only' 
       ), */ 
      'between'=>array(
       'rule'=>array('between', 5, 15), 
       'message'=>'Between 5 and 15 characters' 
      ) 
     ), 
     'password'=>array(
      'rule'=>array('minLength', 8), 
      'required'=>true, 
      'message'=>'Minimum 8 characters long' 
     ), 
     'email'=>'email' 
    ); 
} 

?> 

Answer 1

創建或更新是通過模型的id字段控制。如果$ Model-> id被設置，則帶有這個主鍵的記錄被更新。否則會創建一條新記錄。你可能想檢查$ this-> data是否包含：$ this-> data ['User'] ['id']。如果不這樣做，那就是爲什麼它會創建一個新的記錄。爲了解決這個問題，你可以這樣做：

$this->data['User']['id'] = $this->Session->read('user_id'); 

那是當然的，如果你將其存儲在會話中。否則，您可能需要更新視圖中的表單以保存用戶標識的隱藏字段。然而，這不像會話存儲變量那樣安全，這取決於您是否隱藏用戶標識的安全需求。

快樂編碼！