Sorry, but I think I have searched for the wrong question. It seems like the answer to my question can be found in How to modify a taxonomy that’s already registered. Thanks to @helgatheviking !
50 is relatively not much, and you should create them on the plugin activation hook. For more then 100 (just pulled the number out of my ass 😉 do your own testing on some slow shared hosting) I would create a settings page and initialize the DB from there. The reason is that users do … Read more
in the args try to add this : “rewrite” => FALSE,
So, thanks to G. M.’s help I was able to debug the problem more efficiently, now that I knew init was indeed not being called. I started stripping out all extraneous functions from my functions.php file and I realized I called do_action twice, as I have many functions run through admin-ajax.php. The do_action calls must … Read more
The meta_box_cb argument is expected to be a callback function. So it should be a callable. As Milo suggested in his comment, try to leave that argument away, then the default function for the metabox content will be used. You only need to add an own metabox function if you actually want to customize the … Read more
If your post type supports the category taxonomy, then that drop-down menu would be displayed by default: register_post_type( ‘my_cpt’, [ ‘public’ => true, ‘taxonomies’ => [ ‘category’ ], // here, the post type supports the `category` taxonomy //… ] ); Otherwise, or for custom taxonomies, you can use the restrict_manage_posts hook and wp_dropdown_categories() to add … Read more
There are just a couple of things I want to point out here using get_terms No need to put one value into an array, you can simply just add the value as is to the variable To return your terms, you have to actually have posts assigned to them. By default, empty terms are hidden. … Read more
You use the same slug publication for custom taxonomy and custom post type. Slug should be unique. Another thing (not related with 404) is the flush_rules. As you can read here flush on the init hook is bad idea. Important: Flushing the rewrite rules is an expensive operation, there are tutorials and examples that suggest … Read more
Too much for a comment, so I’ll leave it for an answer: You’re asking a lot of Qs that should actually be different Qs and not dumped into a single one. (Ad 1.) You don’t register “child” or “parent” taxonomies. You add (child-)terms to a hierarchical taxonomy via the WP Back-End UI. You can do … Read more
Retrieving attachment image EXIF data As “a plugin” won’t help later visitors, let’s start off with how to retrieve that: # Get the post ID: Use one of the following. Preferred is the API function get_the_ID() # $GLOBALS[‘post’]->ID; # global $post; $post->ID; # get_the_ID(); $meta = wp_get_attachment_metadata( get_the_ID(), false ); # Fetch the EXIF data … Read more