Question

我正在关注一个tutorial的应用程序，用户可以上传属于特定用户的文件和文件。用户和上传之间存在HABTM关系，如下所示：

upload.php的：

var $hasAndBelongsToMany = array(
    'SharedUser' => array(
        'className' => 'User',
        'joinTable' => 'uploads_users',
        'foreignKey' => 'upload_id',
        'associationForeignKey' => 'user_id',
        'unique' => 'keepExisting'
    )
);

user.php的：

var $hasMany = array(
    'Upload' => array(
        'className' => 'Upload',
        'foreignKey' => 'user_id',
        'dependent' => false
    )
);

var $hasAndBelongsToMany = array(
    'SharedUpload' => array(
        'className' => 'Upload',
        'joinTable' => 'uploads_users',
        'foreignKey' => 'user_id',
        'associationForeignKey' => 'upload_id',
        'unique' => true
    )
);

所有似乎都有效，但有一个例外，即在创建新的上传时，uploads_users表不会更新。如果我手动将数据插入其中，那么用于查找和显示数据的视图将使用它。任何人都可以提出错误的建议吗？

这是uploads_users表：

+-----------+----------+------+-----+---------+----------------+
| Field     | Type     | Null | Key | Default | Extra          |
+-----------+----------+------+-----+---------+----------------+
| id        | int(11)  | NO   | PRI | NULL    | auto_increment |
| upload_id | char(36) | NO   |     | NULL    |                |
| user_id   | char(36) | NO   |     | NULL    |                |
+-----------+----------+------+-----+---------+----------------+

我已经从教程中稍微改变了添加上传方法（因此如果数据库保存失败，它会删除上传的文件），所以这里也是如此：

function add() {
  if (!empty($this->data)) {
    $this->Upload->create();
    if ($this->uploadFile()) {
      try {
        if (!$this->Upload->saveAll($this->request->data)) {
          throw new Exception('Couldn't save to database.');
        }
        $this->Session->setFlash(__('The upload has been saved', true));
        $this->redirect(array('action' => 'index'));
      }
      catch (Exception $e) {
        unlink(APP . 'tmp/uploads/' . $this->request->data['Upload']['id']);
        $this->Session->setFlash(__('The upload could not be saved: ' . $e->getMessage(), true));
      }
    } else {
      $this->Session->setFlash(__('The upload could not be saved.', true));
    }
  }
  $users = $this->Upload->User->find('list');
  $this->set(compact('users', 'users'));
}

function uploadFile() {
  $file = $this->data['Upload']['file'];
  if ($file['error'] === UPLOAD_ERR_OK) {
    $id = String::uuid();
    if (move_uploaded_file($file['tmp_name'], APP.'tmp/uploads'.DS.$id)) {
      $this->request->data['Upload']['id'] = $id;
      $this->request->data['Upload']['user_id'] = $this->Auth->user('id');
      $this->request->data['Upload']['filename'] = $file['name'];
      $this->request->data['Upload']['filesize'] = $file['size'];
      $this->request->data['Upload']['filemime'] = $file['type'];
      return true;
    }
  }
  return false;
}

Answer 1

查看您的请求中的其他内容＆gt;数据会很有用。如在cookbook中所写，您应该使用相关的模型结构。

它应该看起来如下：

$this->request->data['Upload']['id'] = $id;
$this->request->data['Upload']['user_id'] = $this->Auth->user('id');
...
$this->request->data['SharedUser']['id'] = $this->Auth->user('id');

此外，我看不到您的方法“uploadFile”中显示的belongsTo关系。也许你在“上传”模式中不需要它。

Cakephp HABTM连接表空

1 个答案: