/**
  * Валидация пароля
  */
 public function validatePassword($attribute)
 {
     $this->_user = static::$_user;
     if (!$this->_user || !$this->_user->validatePassword($this->{$attribute})) {
         $this->addError('username', '');
         $this->addError($attribute, Yii::t('users', 'INVALID_USERNAME_OR_PASSWORD'));
     }
     if ($this->_user && !$this->_user->status) {
         $this->addError($attribute, Yii::t('users', 'MUST_ACTIVATE_ACCOUNT'));
     }
 }