public function checkLogin()
{
$sqlUsername = sprintf('SELECT * FROM %s WHERE %s = ?', $this->getTableName(), $this->getUsernameName());
$dataUsername = DbStorage::query($sqlUsername, [$this->getUsernameValue()]);
if (!empty($dataUsername) && $dataUsername[0]['password'] == $this->getPasswordValue()) {
return $dataUsername;
}
return false;
}