/**
* Get the validation rules for the model.
*
* This override adds the role_name rule for updates.
*
* @uses $empty_validation_rules Observer to generate validation rules if
* they are empty.
*
* @param string $type The type of validation rules to retrieve: 'update' or
* 'insert'. If 'insert', appends rules set in $insert_validation_rules.
*
* @return array The validation rules for the model or an empty array.
*/
public function get_validation_rules($type = 'update')
{
if ($type != 'update') {
return parent::get_validation_rules($type);
}
// When updating, add the role_name update rule.
$validationRules = parent::get_validation_rules($type);
$validationRules = array_merge($validationRules, $this->updateValidationRules);
return $validationRules;
}
