php - $model-validation() 在 yii 中总是返回 false？

Question

我是 YII 框架的新手。我正在编写一个更改密码的简单方法，我想验证控件，例如如果为空则显示错误消息，或者如果密码和重新输入的密码不匹配则显示错误。我已经使用下面的代码来做到这一点:

public function actionChange()
{
    $model=new Users;
    $model->scenario='change';
    if (isset($_POST['Users'])) {
        $model->setAttributes($_POST['Users']);                     

        if($model->validate())
            {
                print "true";   
            }
        else{

                print "false";  
            }   

        if($model->validate())
            {       
                $pass = md5($_POST['Users']['newPassword']);            
                $userModel = Users::model()->findByPk(Yii::app()->user->id);
                $userModel->password = $pass; 
                $data = $userModel->update();
            }

            if(isset($data))
            {
                Yii::app()->user->setFlash('success',"Password changed successfully!");
                $this->redirect(array('Users/change'), true);
            }
        }


$this->render('change_password', array('model'=>$model,true));
}

但是 **$model->validate()** 无论我是否填写字段，总是返回 false。

更新:

这里是规则函数:

public function rules()
{
    return array(
        array('is_active', 'numerical', 'integerOnly'=>true),
        array('first_name, joining_date,last_name, employee_code, username, password, role', 'required'),       
        array('employee_code', 'numerical', 'integerOnly'=>true),
        array('username','email'),      
        array('username','valid_username','on'=>array('create')),

        //array('username', 'contraints', 'readOnly'=>true, 'on'=>'update'),

        array('currentPassword, newPassword, newPasswordRepeat', 'required','on'=>array('change')),
        //array('newPassword', 'length', 'min' => 6, 'max'=>20, 'message'=>Yii::t("translation", "{attribute} is too short.")),
        //array('newPassword','ext.SPasswordValidator.SPasswordValidator', 'preset' => 'strong', 'max' => 41),
        array('newPassword', 'compare', 'compareAttribute'=>'newPasswordRepeat','on'=>array('change')),
        array('currentPassword', 'equalPasswords','on'=>array('change')),
        array('verifyCode', 'captcha', 'allowEmpty'=>!CCaptcha::checkRequirements(),'on'=>array('forgotPassword')),
        array('joining_date', 'safe'),
        array('user_id, first_name, last_name, employee_code, username, password, role, joining_date, pending_regular_leave, pending_medical_leave, allocated_regular_leave, allocated_medical_leave, is_active', 'safe', 'on'=>'search'),
    );
}


public function equalPasswords($attribute, $params)
{
    $user = Users::findByPk(Yii::app()->user->id);
    if ($user->password != md5($this->currentPassword))
        $this->addError($attribute, 'Old password is incorrect.');
}

请帮助我。

Answer 1

由于某种原因，您的验证失败。尝试在 else block 中显示验证错误(验证失败时)。

 if($model->validate()) {
 ....
 }
 else {
      $errors = $model->getErrors();
      var_dump($errors); //or print_r($errors)
      exit;
 }

另一件事，如果它没有帮助，您可以尝试从您的规则中注释一些验证规则，看看哪些规则失败了。