/**
* Finds user by [[username]]
*
* @return User|null
*/
public function getUser()
{
if ($this->_user === false) {
$this->_user = User::findByUsername($this->username);
}
return $this->_user;
}
public function login()
{
if (($user = User::findByUsername($this->username)) !== null) {
return Yii::$app->user->login($user, 0);
}
}