Question

我的“用户”型号代码

class User extends AppModel{
    public $validate = array(
        'username' => array(
            'username_shoud_be_unique' => array(
                'rule' => 'isUnique',
                'message' => 'Username is already taken'
            ),

            'username_cannot_be_empty' => array(
                'rule' => 'notEmpty',
                'message' => 'Usename field cannot be Empty'
            )
        ),

        'password' => array(
            'rule' => 'notEmpty',
            'message' => 'Password field cannot be Empty'
        ),


        'confirm_password' => array(
            'confirm_password_cannot_be_empty' => array(
                'rule' => 'notEmpty',
                'message' => 'Confirm Password Field cannot be Empty'
            ),

            'confirm_password_must_match_password' => array(
                'rule' => array('checkPassword'),
                'message' => 'Password and Confirm Password Field value should match'
            )
        ),

        'email' => array(
            'email_should_be_unique' => array(
                'rule' => 'isUnique',
                'message' => 'This email is already registered'
            ),

            'email_cannot_be_empty' => array(
                'rule' => 'notEmpty',
                'message' => 'Email cannot be Empty'
            )
        )
    );

    public function checkPassword(){
        if(!($this->data['User']['password'] === $this->data['User']['confirm_password'])){
            $this->invalidate('password','Password and Confirm Password Field value should match');
            return false;
        }

        return true;
    }
}

我的“UsersController.php”是

class UsersController extends AppController{
    public $helper = array('Html','Form','Session');
    public $components = array('Session');

    public function index(){
        if($this->request->is('post')){
            $this->User->create();
            $this->request->data['User']['ip'] = $this->request->clientIp();
            $this->request->data['User']['username_clean'] = strtolower($this->request->data['User']['username']);
            $this->request->data['User']['confirmcode'] = md5(md5($this->generateRandomString())."com.ultimate-videochat");
            if($this->User->save($this->request->data)){
                $this->Session->setFlash(__('User created Successfully'));
            } else{
                $this->Session->setFlash(__('Unable to create User'));
            }


        }
    }

    //This function is only for internal use. It's not an action.
    private function generateRandomString($length = 10) {
        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $randomString = '';
        for ($i = 0; $i < $length; $i++) {
            $randomString .= $characters[rand(0, strlen($characters) - 1)];
        }
        return $randomString;
    }

}

我的index.ctp是http://pastebin.com/DiFHLNV8

问题在于，当用户因数据验证失败而无法保存时，例如当用户输入已存在的用户名时，会抛出一条消息“无法创建用户”。如果由于“连接失败”或其他一些技术原因等其他原因无法创建用户，我该如何获取该消息。对于验证失败，字段上的红色标记就足够了。

Answer 1

您的布局中必须有一个声明echo $this->Session->flash();才能显示Flash消息。所以删除它或包装在如下的条件下：

if (empty($this->validationErrors)) {
  echo $this->Session->flash();
}

以便在验证错误时不显示flash消息。

Answer 2

您可以简单地阻止控制器本身的闪光信息设置。

虽然我不相信这是好事。显示Flash消息以及表单错误有什么问题？那更有用:)！

无论如何，如果您仍然认为您想在验证错误案例中隐藏它，请转到：

 if($this->User->save($this->request->data)) {
      $this->Session->setFlash(__('User created Successfully'));
 } else {
      if (empty($this->User->validationErrors)) {
           $this->Session->setFlash(__('Unable to create User'));
      }
 }

CakePHP：由于验证失败，保存失败

2 个答案: