public function validate_checkIfDomainIdExists($field, $input, $param = null) { if (!isset($input[$field]) || empty($input[$field])) { return; } $model = new Model_Domain(); $results = $model->getByQuery('id = ?', $input[$field]); if (count($results) == 0) { return array('field' => $field, 'value' => $input[$field], 'rule' => __FUNCTION__, 'param' => $param); } }