try {
$controller = new sharing_cart\controller();
switch (required_param('action', PARAM_TEXT)) {
case 'render_tree':
$PAGE->set_context(\context_user::instance($USER->id));
// pix_url() needs this
echo $controller->render_tree($USER->id);
exit;
case 'is_userdata_copyable':
$cmid = required_param('cmid', PARAM_INT);
echo $controller->is_userdata_copyable($cmid);
exit;
case 'backup':
$cmid = required_param('cmid', PARAM_INT);
$userdata = required_param('userdata', PARAM_BOOL);
$controller->backup($cmid, $userdata);
exit;
case 'movedir':
$id = required_param('id', PARAM_INT);
$to = required_param('to', PARAM_TEXT);
$controller->movedir($id, $to);
exit;
case 'move':
$id = required_param('id', PARAM_INT);
$to = required_param('to', PARAM_INT);
$controller->move($id, $to);
exit;
case 'delete':
$id = required_param('id', PARAM_INT);
$controller->delete($id);
exit;
