如何检查数据库中是否存在记录

Question

在yii中,我使用安全问题创建密码重置功能.首先,用户需要输入他的电子邮件ID.我在创建emailform.php views->User1作为

<?php
$form=$this->beginWidget('CActiveForm', array(
    'id'=>'email-form',
    'enableClientValidation'=>true,
    ));
echo CHtml::textField('email');
echo CHtml::submitButton('Send');
$this->endWidget();

在控制器中我创建了方法as

public function actionPassword() {
    if (isset($_POST['email'])) {
       $email = $_POST['email'];
       //process email....
       //....
    }
    $this->render('_emailForm');
}

现在我想检查User表中是否存在此电子邮件ID.如果确实如此,那么我想向他展示一个安全问题.我该如何实现呢？

Answer 1

这将帮助您入门,您将在控制器中放置一个类似于此的方法,并在其上创建一个带有密码字段的视图.

public function actionPassword() {
  if(isset($_POST['email'])) {
    $record=User::model()->find(array(
      'select'=>'email',
      'condition'=>'email=:email',
      'params'=>array(':email'=>$_POST['email']))
    );

    if($record===null) {
      $error = 'Email invalid';
    } else {
      $newpassword = 'newrandomgeneratedpassword';
      $record->password = $this->hash_password_secure($newpassword);
      $record->save(); //you might have some issues with the user model when the password is protected for security
      //Email new password to user
    }
  } else {
    $this->render('forgetPassword'); //show the view with the password field
  }
}