/**
* check if item exists
* logic: exact match of title and description
*
* @return bool
*/
protected function itemExists()
{
$items = LbInvoiceItemTemplate::model()->findAll('lb_item_title = :title AND lb_item_description = :description', array(':title' => $this->lb_item_title, ':description' => $this->lb_item_description));
if (count($items)) {
return true;
}
return false;
}