LoginForm.php
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<?php
namespace common\models;
use Yii;
use yii\base\Model;
/**
* LoginForm is the model behind the login form.
*/
class LoginForm extends Model
{
public $username;
public $password;
public $rememberMe = true;
private $_user = false;
/**
* @return array the validation rules.
*/
public function rules()
{
return array(
// username and password are both required
array(array('username', 'password'), 'required'),
// password is validated by validatePassword()
array('password', 'validatePassword'),
// rememberMe must be a boolean value
array('rememberMe', 'boolean'),
);
}
/**
* Validates the password.
* This method serves as the inline validation for password.
*/
public function validatePassword()
{
$user = $this->getUser();
if (!$user || !$user->validatePassword($this->password)) {
$this->addError('password', 'Incorrect username or password.');
}
}
/**
* Logs in a user using the provided username and password.
* @return boolean whether the user is logged in successfully
*/
public function login()
{
if ($this->validate()) {
return Yii::$app->user->login($this->getUser(), $this->rememberMe ? 3600*24*30 : 0);
} else {
return false;
}
}
/**
* Finds user by [[username]]
*
* @return User|null
*/
private function getUser()
{
if ($this->_user === false) {
$this->_user = User::findByUsername($this->username);
}
return $this->_user;
}
}