On the course I’m doing the code below sets a custom post type ‘note’ status to private but also makes sure if a post has a status of trash this status is not changed so the user can continue to delete posts.
My question is this. The filter hook wp_insert_post_data I thought only got called when data was being inserted but it also seems to be called when a user deletes! Hence the extra condition being added i.e. $data['post_status'] != 'trash'
Even the WP documentation says
Filters slashed post data just before it is inserted into the database.
So why is this hook being called when trying to delete?
function makeNotePrivate($data) {
if($data['post_type'] == 'note' AND $data['post_status'] != 'trash') {
$data['post_status'] = "private";
}
return $data;
}
add_filter('wp_insert_post_data', 'makeNotePrivate', 10, 2);
