XE의 요상한 회원 그룹 DB 기록 의문 그리고 코드 수정

        /**
         * @brief 쪽지보내기 (관리자용)
         **/
        function procMsg_adminAdminInsert() {
// 필수 정보들을 미리 추출
            $args = Context::gets('title','content','receiver_target');

// 변수 검사
$title = trim($args->title);
$content = trim($args->content);
if(!$title) return new BaseObject(-1, 'msg_title_is_null');
if(!$content) return new BaseObject(-1, 'msg_content_is_null');

            // 로그인정보 구해옴
$logged_info = Context::get('logged_info');

// receiver_target에 따라 받는이 지정
$oMemberModel = &getModel('member');
            $oCommunicationController = &getController('communication');
$target = array();
switch ($args->receiver_target) {
            case -1: // 특정 사용자
    $args->receiver_value = Context::get('receiver_value');
                $receiver_list = explode('|@|', $args->receiver_value);
                if(!count($receiver_list)) return new BaseObject(-1, 'null_user_id');

    $receiver_count = count($receiver_list);
                for($i=0;$i<$receiver_count;$i++) {
                    $user_id = trim($receiver_list[$i]);
$member_srl = $oMemberModel->getMemberSrlByUserID($user_id);
                    if(!$user_id || !$member_srl) continue;
                    $target[] = $member_srl;
                }
break;
            case -2: // 특정 그룹 
    $args->receiver_group = Context::get('receiver_group');
                $receiver_list = explode('|@|', $args->receiver_group);
                if(!count($receiver_list)) return new BaseObject(-1, 'msg_check_group');

    $receiver_count = count($receiver_list);
                $group_srl_list = array();
                for($i=0;$i<$receiver_count;$i++) {
                    $group_srl = (int)trim($receiver_list[$i]);
                    if(!$group_srl) continue;
$group_srl_list[] = $group_srl;
                }

                // 그룹에 해당하는 회원정보 구해옴
                $output = $this->getMemberListWithin($group_srl_list);
                if(!$output->toBool()) return $output;
$groups_data = $output->data;
                foreach($groups_data as $key => $val) {
                    $target[] = $val->member_srl;
                }
break;
            default: // 전체 사용자
                // 전체 회원정보 구해옴
                $output = $this->getMemberTotal();
                if(!$output->toBool()) return $output;
                if(!$output->data) break;
                $members_data = $output->data;
                foreach($members_data as $key => $val) {
                    $target[] = $val->member_srl;
}
                break;
            }

            if(!count($target)) return new BaseObject(-1,'msg_not_founded');

// 쪽지 발송
foreach($target as $receiver_srl) {
if($receiver_srl == $logged_info->member_srl) continue;
    $output = $oCommunicationController->sendMessage($logged_info->member_srl, $receiver_srl, $title, $content);
                if(!$output->toBool()) continue;
}

            $this->add('message_type', Context::get('message_type'));
$this->add('page', Context::get('page'));

$this->setMessage("success_registed");
        }