据我所知，在 3.1 中没有办法通过将其传递到配置中来做到这一点。这可能是一个好主意，将其作为功能请求提交到 cakephp git hub 上。
有多种方法可以通过创建一个扩展基本身份验证的新身份验证对象，然后覆盖 _findUser 和 _query 来实现此目的。像这样的东西：
class GymFormAuthenticate extends BaseAuthenticate
{
/**
* Checks the fields to ensure they are supplied.
*
* @param \Cake\Network\Request $request The request that contains login information.
* @param array $fields The fields to be checked.
* @return bool False if the fields have not been supplied. True if they exist.
*/
protected function _checkFields(Request $request, array $fields)
{
foreach ([$fields['username'], $fields['password'], $fields['gym']] as $field) {
$value = $request->data($field);
if (empty($value) || !is_string($value)) {
return false;
}
}
return true;
}
/**
* Authenticates the identity contained in a request. Will use the `config.userModel`, and `config.fields`
* to find POST data that is used to find a matching record in the `config.userModel`. Will return false if
* there is no post data, either username or password is missing, or if the scope conditions have not been met.
*
* @param \Cake\Network\Request $request The request that contains login information.
* @param \Cake\Network\Response $response Unused response object.
* @return mixed False on login failure. An array of User data on success.
*/
public function authenticate(Request $request, Response $response)
{
$fields = $this->_config['fields'];
if (!$this->_checkFields($request, $fields)) {
return false;
}
return $this->_findUser(
$request->data[$fields['username']],
$request->data[$fields['password']],
$request->data[$fields['gym']],
);
}
/**
* Find a user record using the username,password,gym provided.
*
* Input passwords will be hashed even when a user doesn't exist. This
* helps mitigate timing attacks that are attempting to find valid usernames.
*
* @param string $username The username/identifier.
* @param string|null $password The password, if not provided password checking is skipped
* and result of find is returned.
* @return bool|array Either false on failure, or an array of user data.
*/
protected function _findUser($username, $password = null, $gym = null)
{
$result = $this->_query($username, $gym)->first();
if (empty($result)) {
return false;
}
if ($password !== null) {
$hasher = $this->passwordHasher();
$hashedPassword = $result->get($this->_config['fields']['password']);
if (!$hasher->check($password, $hashedPassword)) {
return false;
}
$this->_needsPasswordRehash = $hasher->needsRehash($hashedPassword);
$result->unsetProperty($this->_config['fields']['password']);
}
return $result->toArray();
}
/**
* Get query object for fetching user from database.
*
* @param string $username The username/identifier.
* @return \Cake\ORM\Query
*/
protected function _query($username, $gym)
{
$config = $this->_config;
$table = TableRegistryget($config['userModel']);
$options = [
'conditions' => [$table->aliasField($config['fields']['username']) => $username, 'gym' => $gym]
];
if (!empty($config['scope'])) {
$options['conditions'] = array_merge($options['conditions'], $config['scope']);
}
if (!empty($config['contain'])) {
$options['contain'] = $config['contain'];
}
$query = $table->find($config['finder'], $options);
return $query;
}
}
欲了解更多信息，请参阅此：创建自定义身份验证对象 http://book.cakephp.org/3.0/en/controllers/components/authentication.html#creating-custom-authentication-objects
