function executeChange($userID, $groupID, $newStatus) { $newStatus = $newStatus; if ($newStatus !== "1" && $newStatus !== "2" && $newStatus !== "3") { return "Invalid status!"; } $userDAO = new UserDAO(); $user = $userDAO->getUserByID($userID); $groupDAO = new GroupDAO(); $group = $groupDAO->getGroupByID($groupID); if ($group === null) { return "Could not find this group!"; } if ($group->getActivateStatus() === $newStatus) { return "Old status is equal to new status, don't need to change!"; } if ($user->getRole()->getRoleID() === "3") { if ($group->getOwner()->getUserID() !== $userID) { return "You have no right to change group status!"; } if ($newStatus === "3") { return "You have no right to delete this group!"; } } if ($newStatus !== "3") { $group->setActivateStatus($newStatus); $groupDAO->updateGroup($group); } else { //delete records $recordDAO = new RecordDAO(); $recordDAO->deleteRecordsByGroup($group); //delete groupmember $gmDAO = new GroupMemberDAO(); $gmDAO->deleteGroupMembersByGroup($group); //delete group $groupDAO->deleteGroup($group); } return true; }