function run_error_checks()
{
parent::run_error_checks();
$es = new entity_selector();
$es->add_relation('audience_integration.directory_service_value = "' . reason_sql_string_escape($this->get_value('directory_service_value')) . '"');
$es->add_relation('entity.id != ' . $this->get_value('id'));
$es->set_num(1);
$conflicts = $es->run_one(id_of('audience_type'));
if (!empty($conflicts)) {
$this->set_error('directory_service_value', 'The Directory Service Value you entered ("' . $this->get_value('directory_service_value') . '") is already in use. Each audience must have a unique directory service value.');
}
}