php - 我无法删除留在我的主页上的消息以从我的消息数据库和主页本身中删除

Question

我正在尝试从我拥有的主页中删除消息，当我按下删除按钮时，我收到一些 php 错误消息，说我声明的字段都无效，以及数据库错误 - 未知列'='消息'' 'where 子句'。我正在尝试不仅从主页删除消息，而且还从数据库中删除消息。我已经在我的messagesTable 数组中清楚地说明了from、to 和message 字段，为什么他们说无效？我的函数被称为delete($messageTable).

我的模型：

class Messages extends CI_Model
{

   private $messagesTable = 'messages'; 

   function Messages()
   {
      parent::__construct();
   }


   function addMessage($from, $to, $message)
   {
      $record = array(
        'to' => $to,
        'from' => $from,
        'message' => $message);
      $this->db->insert('messages', $record);   
   }


   function getMessages($user)
   {

      $this->db->select('*');
      $this->db->from('messages');
      //$this->db->where('to', $user);
      $messagesSet = $this->db->get();

      $messages = array ();

      foreach ($messagesSet->result() as $row)
      {
      $messages[] = array('from' => $row->from, 'message' => $row->message);

      } 

      return $messages;
   }


   function delete($messagesTable) {

      $messagesTable = array(
        $from  => 'from',
        $to  => 'to',
        $message => 'message');

          $this->db->select('*')->from('messages')->where($messagesTable);
          $this->db->delete($messagesTable);
    }

}

我的观点：

 <div id="maincontent">
  <div id="primary">     
    <h2> Friends </h2> 
    <ul> 
       <?php foreach ($friends['mutual'] as $name):?>
       <li> 
       <?=anchor("profile/view/$name", $name)?>, (<?=anchor("home/drop/$name", 'drop')?>)
       </li>
        <?php endforeach?>
     </ul>
   <h2> Following </h2> 
    <ul>
      <?php foreach($friends['following'] as $name):?>
        <li>  <?=anchor("profile/view/$name", $name)?>, (<?=anchor("home/drop/$name", 'drop')?>)</li>
      <?php endforeach?>
    </ul>
    <h2> Followers </h2> 
    <ul>
     <?php foreach($friends ['followers'] as $name):?>
        <li>
          <?=anchor("profile/view/$name", $name)?>
        </li>
      <?php endforeach?>
    </ul>
  </div>  
  <div id="secondary">
    <h2> Messages</h2> 
    <ul> 
      <?php foreach($messages as $message):?>
          <li><?=$message['from']?> says...: "<?=$message['message']?>"(<?=anchor("home/delete/{$message['from']}", 'delete')?>)</li>      
         <?php endforeach?>    
    </ul>      
  </div>
</div>

控制器：

 class Home extends CI_Controller 
 {
 function Home()
 {
 parent::__construct();
 $this->load->model('messages');
 $this->load->model('friends');
 $this->load->model("profiles");


 }

   function drop($member)
  {
   $username = $this->session->userdata('username');
   $this->friends->deleteFriend($username, $member);
   redirect('home');
  }



   function delete($messagesTable) {

$this->messages->delete($messagesTable);
$this->index();

    }


function index()
{

 $username = $this->session->userdata('username');
 $membername = $this->session->userdata('membername');
 $viewData['membername'] = $membername;
 $viewData['username'] = $username;
 $viewData['following'] = $this->friends->getFollowing($username);
 $viewData['followers'] = $this->friends->getFollowers($username);
 $viewData['messages'] = $this->messages->getMessages($membername);
 $viewData['friends'] = $this->friends->getFriends($username);


 $this->load->view('shared/header');
 $this->load->view('home/hometitle', $viewData);
 $this->load->view('shared/nav');
 $this->load->view('home/homeview', $viewData);
 $this->load->view('shared/footer');
}

  } 

Answer 1

这不应该

$messagesTable = array(
    $from  => 'from',
    $to  => 'to',
    $message => 'message');

是

$messagesTable = array(
    'from'  => $from,
    'to'  => $to,
    'message' => $message);

??