Enhancement: Filter Taxonomy Show UI in post editor (edit-form-advanced.php)

[transom]

I am working on a project that maintains a "hidden" taxonomy. I want to expose the taxonomy selectively on various custom post types.

The attached patch filters a taxonomy's show_ui value before deciding to create a meta_box. The filter also passes the taxonomy object as well as the current post type.

[nacin]

You could simply selectively set show_ui when registering the post type on each pageload. Then you can check the $current_screen object to see what page you're on.

[transom]

$current_screen object isn't created until after "admin_init" which is causing all sorts of contortions to setup the cpt, This will be problematic in the future since anyone else approaching the application in the future will expect to see it hooked to init.

[nacin]

I believe it is now possible to pass a callback to register_taxonomy() specifying the meta box, with the ability to hide it all together. Please reopen if this is insufficient.