Composite foreign key updation failed - mysql

Question

I am facing the issue in composite foreign key.
I have tried example, and tried with structure change too but still i am not succeed. I have trid in mysql server.
CREATE TABLE `parenttable` (
`ID` int(11) NOT NULL,
`status` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `parenttable` (`ID`, `status`) VALUES
(1, 1),
(2, 1),
(3, 1);
ALTER TABLE `parenttable`
ADD PRIMARY KEY (`ID`),
ADD KEY `ID` (`ID`,`status`);
ALTER TABLE `parenttable`
MODIFY `ID` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=4;
COMMIT;
CREATE TABLE `parenttable2` (
`ID` int(11) NOT NULL,
`status` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `parenttable2` (`ID`, `status`) VALUES
(1, 1),
(2, 1),
(3, 1);
ALTER TABLE `parenttable2`
ADD PRIMARY KEY (`ID`),
ADD KEY `ID` (`ID`,`status`);
ALTER TABLE `parenttable2`
MODIFY `ID` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=4;
COMMIT;
CREATE TABLE `childtable` (
`ID` int(11) NOT NULL,
`parent_id` int(11) NOT NULL,
`parent_id2` int(11) NOT NULL,
`status` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `childtable` (`ID`, `parent_id`, `parent_id2`, `status`) VALUES
(1, 1, 1, 1),
(3, 1, 1, 1),
(4, 2, 2, 1),
(5, 2, 3, 1),
(6, 1, 1, 1);
ALTER TABLE `childtable`
ADD PRIMARY KEY (`ID`),
ADD KEY `fk_childTable_parent_id` (`parent_id`,`status`),
ADD KEY `fk_childTable_parent_id2` (`parent_id2`,`status`);
ALTER TABLE `childtable`
MODIFY `ID` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=7;
ALTER TABLE `childtable`
ADD CONSTRAINT `fk_childTable_parent_id` FOREIGN KEY
(`parent_id`,`status`) REFERENCES `parenttable` (`ID`, `status`) ON DELETE
CASCADE ON UPDATE CASCADE,
ADD CONSTRAINT `fk_childTable_parent_id2` FOREIGN KEY
(`parent_id2`,`status`) REFERENCES `parenttable2` (`ID`, `status`) ON DELETE
CASCADE ON UPDATE CASCADE;
COMMIT;
I want to update all child rows "status" when parent is changed and single child "status" row too.
Please give me suggestion. Thank You.