I have a series of child Pages, all of which can belong to one of three different Parent Pages. Each of these Child Pages calls in a particular field, depending on which Parent is selected.
When I do this using the field rules, it works perfectly. E.g. a User creates a new Page then selects a Parent for the Page and then the correct custom field for that Parent type appears.
However, some of my Authors are very, very inexperienced and often forget to assign a Parent to a new Page. I have tried assigning a jQuery confirm alert on Page Publish to remind Authors to assign a Page to a Parent but the more experienced Users find this annoying.
I have got round this by creating an Admin Dashboard widget that contains links to create a new Page with the Parent pre-selected. I’ve done this by adding the Parent ID to the URL of the new post:
https://www.example.com/wp-admin/post-new.php?post_type=page&parentid=1
Then I have some code in functions.php to test for this:
function my_preselect_parent() {
if(!isset($_GET['parentid']) || empty($_GET['parentid'])) {
return;
}else{
$ppid = $_GET['parentid'];
?>
<script type="text/javascript">
jQuery(document).ready(function($) {
$('#parent_id').val(<?php echo $ppid; ?>);
});
</script>
<?php
}
add_action('admin_head-post-new.php', 'my_preselect_parent');
This works perfectly.
However, my issue is – how do I now call the right custom field in? Is there a way to programmatically call in a custom field to the new post screen?
