Question

在我要求用户确认他/她是否真的要删除这样的实例之前：

$this->Html->link($this->Html->image('delete.png', array(
'alt'=>'delete', 'title'=>__('Delete'))),
 array(
'controller' => 'users', 'action' => 'delete', $user['User']['id']),
  array(
'escape'=>false, 'confirm'=>'Are you sure, you want to delete this user?'));

现在用户有很多事件，我想检查他/她是否确实这样做了。这没问题，所以在控制器中我会尝试将第一个事件作为该用户的id。但是，如果有任何事件，我想通知用户，由于存在相关事件，因此无法删除。

我可以绕过并提出一些自定义的JavaScript解决方案，但必须有一个蛋糕方式来做它，它只是我找不到。

有什么建议吗？

以下是控制器操作：

public function delete($id = null,$user_id = null) {
    if (!$id) {
        $this->Session->setFlash(__('Incorrect user id'));
        $this->redirect(array('action'=>'index'));
    }
    if ($this->User->delete($id)) {
        $this->Session->setFlash(__('User has been deleted'), 'positive_notification');
        $this->redirect(array('controller'=>'full_calendar', 'action'=>'view_for', $user_id ));
    }
    $this->Session->setFlash(__('The user could not be deleted. Please try again.'), 'negative_notification');
    $this->redirect(array('action' => 'index'));
}

Answer 1

鉴于您已正确设置了这样的模型关系：

   //User.php

   public $hasMany = array(
    'Event' => array(
        'className' => 'Event',
        'foreignKey' => 'user_id'
    ),

  //Event.php
   public $belongsTo = array(
    'User' => array(
        'className' => 'User',
        'foreignKey' => 'user_id'
    ),
);


 public function delete($id = null) {
    if (!$id) {
      $this->Session->setFlash(__('Incorrect user id'));
      $this->redirect(array('action'=>'index'));
    }
    //check if User has Events
    $user=$this->User->findById($id); //you can debug first the $user so you can know the values inside the array. Given that it has many Events, events associated to the User is in the $user
    if(count($user["Event"])==0){ //if user has no events
       if ($this->User->delete($id)) { //delete user
          $this->Session->setFlash(__('User has been deleted'), 'positive_notification');
          $this->redirect(array('controller'=>'full_calendar', 'action'=>'view_for', $user_id ));
       }
       else{
            $this->Session->setFlash(__('The user could not be deleted. Please try again.'),             'negative_notification');
         $this->redirect(array('action' => 'index'));
       }
    }
    else{
         $this->Session->setFlash(__('The user could not be deleted. Some events are associated to this User.'), 'negative_notification');
         $this->redirect(array('action' => 'index'));
    }


}

有关删除cakePHP的条件用户确认

1 个答案: