}
$check_id = -1;
$section = null;
$old_parent = null;
if (isset($_POST['id'])) {
// Saving an existing content page. Read it from the database.
$section = $db->selectObject('section', 'id=' . intval($_POST['id']));
if ($section) {
$old_parent = $section->parent;
$check_id = $section->id;
}
} else {
$check_id = $_POST['parent'];
}
// Update the section from the _POST data.
$section = section::updateExternalAlias($_POST, $section);
if ($check_id != -1 && expPermissions::check('manage', expCore::makeLocation('navigationmodule', '', $check_id))) {
if (isset($section->id)) {
if ($section->parent != $old_parent) {
// Old_parent id was different than the new parent id. Need to decrement the ranks
// of the old children (after ours), and then add
$section = section::changeParent($section, $old_parent, $section->parent);
}
// Existing section. Update the database record.
// The 'id=x' where clause is implicit with an updateObject
expSession::clearAllUsersSessionCache('navigationmodule');
$db->updateObject($section, 'section');
} else {
// Since this is new, we need to increment ranks, in case the user
// added it in the middle of the level.
$db->increment('section', 'rank', 1, 'rank >= ' . $section->rank . ' AND parent=' . $section->parent);
