public function db_delete($state_info)
{
$primary_key = $state_info->primary_key;
if ($this->callback_delete === null) {
if ($this->callback_before_delete !== null) {
$callback_return = call_user_func($this->callback_before_delete, $primary_key);
if ($callback_return === false) {
return false;
}
}
if (!empty($this->relation_n_n)) {
foreach ($this->relation_n_n as $field_name => $field_info) {
$this->db_relation_n_n_delete($field_info, $primary_key);
}
}
$delete_result = $this->basic_model->db_delete($primary_key);
if ($delete_result === false) {
return false;
}
if ($this->callback_after_delete !== null) {
$callback_return = call_user_func($this->callback_after_delete, $primary_key);
if ($callback_return === false) {
return false;
}
}
} else {
$callback_return = call_user_func($this->callback_delete, $primary_key);
if ($callback_return === false) {
return false;
}
}
return true;
}