我正在尝试使用 kohana auth 模块，但出现错误：'调用未定义的方法 Model_User::unique_key()'
我使用代码：
$auth = Auth::instance();
if ($auth->login($_POST['email'], $_POST['password']))
{
echo 'hello, '.$auth->$_POST['username'];
}
else
{
echo 'login failed!';
}
当电子邮件和密码正常时会发生这种情况。你知道出了什么问题吗？
您收到的错误似乎是因为您没有用于身份验证的配置文件设置。您应该有一个位于 /application/config/auth.php 的文件。这是我的一个例子：
<?php defined('SYSPATH') or die('No direct access allowed.');
return array(
'driver' => 'ORM',
'hash_method' => 'sha256',
'hash_key' => 'Somebiglonghaskeyofmixedcharacters102345567709',
'lifetime' => 1209600,
'session_type' => Session::$default,
'session_key' => 'auth_user',
// Username/password combinations for the Auth File driver
'users' => array(
// 'admin' => 'b3154acf3a344170077d11bdb5fff31532f679a1919e716a02',
),
);
我的配置文件导致 auth 使用数据库来存储用户。请参阅有关如何设置数据库的文档，或者您可以使用文件身份验证。
一旦你的配置工作，你可以像这样登录用户：
$user = Auth::instance()->login($this->request->post('username'), $this->request->post('password'), $remember);
我还发现在 application/classes/model/user.php 中创建我自己的用户模型很有用。这是我的一个例子：
<?php defined('SYSPATH') or die('No direct access allowed.');
class Model_User extends ORM {
/**
* A user has many tokens and roles
*
* @var array Relationhips
*/
protected $_has_many = array(
'user_tokens' => array('model' => 'user_token'),
'roles' => array('model' => 'role', 'through' => 'roles_users'),
);
/**
* Rules for the user model. Because the password is _always_ a hash
* when it's set,you need to run an additional not_empty rule in your controller
* to make sure you didn't hash an empty string. The password rules
* should be enforced outside the model or with a model helper method.
*
* @return array Rules
*/
public function rules()
{
return array(
'username' => array(
array('not_empty'),
array('max_length', array(':value', 32)),
array(array($this, 'unique'), array('username', ':value')),
array('regex', array(':value', '/^[a-z][a-z0-9]+$/i')),
),
'email' => array(
array('not_empty'),
array('email'),
array(array($this, 'unique'), array('email', ':value')),
),
);
}
/**
* Filters to run when data is set in this model. The password filter
* automatically hashes the password when it's set in the model.
*
* @return array Filters
*/
public function filters()
{
return array(
'password' => array(
array(array(Auth::instance(), 'hash'))
)
);
}
/**
* Labels for fields in this model
*
* @return array Labels
*/
public function labels()
{
return array();
}
/**
* Complete the login for a user by incrementing the logins and saving login timestamp
*
* @return void
*/
public function complete_login()
{
if ($this->_loaded)
{
// Update the number of logins
$this->logins = new Database_Expression('logins + 1');
// Set the last login date
$this->last_login = time();
// Save the user
$this->update();
}
}
/**
* Tests if a unique key value exists in the database.
*
* @param mixed the value to test
* @param string field name
* @return boolean
*/
public function unique_key_exists($value, $field = NULL)
{
if ($field === NULL)
{
// Automatically determine field by looking at the value
$field = $this->unique_key($value);
}
return (bool) DB::select(array('COUNT("*")', 'total_count'))
->from($this->_table_name)
->where($field, '=', $value)
->where($this->_primary_key, '!=', $this->pk())
->execute($this->_db)
->get('total_count');
}
/**
* Allows a model use both email and username as unique identifiers for login
*
* @param string unique value
* @return string field name
*/
public function unique_key($value)
{
return Valid::email($value) ? 'email' : 'username';
}
/**
* Password validation for plain passwords.
*
* @param array $values
* @return Validation
*/
public static function get_password_validation($values)
{
return Validation::factory($values)
->rule('password', 'min_length', array(':value', 8))
->rule('password_confirm', 'not_empty')
->rule('password_confirm', 'min_length', array(':value', 8))
->rule('password_confirm', 'matches', array(':validation', 'password', ':field'));
}
/**
* Create a new user
*
* Example usage:
* ~~~
* $user = ORM::factory('user')->create_user($_POST, array(
* 'username',
* 'password',
* 'email',
* );
* ~~~
*
* @param array $values
* @param array $expected
* @throws ORM_Validation_Exception
*/
public function create_user($values, $expected)
{
// Validation for passwords
$extra_validation = Model_User::get_password_validation($values)
->rule('password', 'not_empty');
return $this->values($values, $expected)->create($extra_validation);
}
/**
* Update an existing user
*
* [!!] We make the assumption that if a user does not supply a password, that they do not wish to update their password.
*
* Example usage:
* ~~~
* $user = ORM::factory('user')
* ->where('username', '=', 'kiall')
* ->find()
* ->update_user($_POST, array(
* 'username',
* 'password',
* 'email',
* );
* ~~~
*
* @param array $values
* @param array $expected
* @throws ORM_Validation_Exception
*/
public function update_user($values, $expected = NULL)
{
if (empty($values['password']))
{
unset($values['password'], $values['password_confirm']);
}
// Validation for passwords
$extra_validation = Model_User::get_password_validation($values);
return $this->values($values, $expected)->update($extra_validation);
}
} // End Auth User Model
我遇到了这个问题，并通过让我的模型扩展来修复它Model_Auth_User。