I’ve logged a ticket against this with trac: http://core.trac.wordpress.org/ticket/20536 However, it turns out that for the time being it IS necessary, as WordPress currently (since 2.x) has a bug that DOES associate two terms with the same name to the same term_id! So it IS possible (though incorrect) for a single term to be associated … Read more
Hmmm, can’t remember or find fitting function either. There is wp_set_object_terms() that is used in multiple wrappers like wp_set_post_categories(). It can overwrite categories for a post. So you can get post categories, check for unwanted one and write it back excluding unwanted in that case.
Normally to add fields to the quick edit field, we should use ‘quick_edit_custom_box’ action hook that is triggered only for custom columns, because core columns are explicitly excluded (see code). If we add a custom column, then it will be shown in the list table, but it doesn’t make sense, because the column description is … Read more
You can have the term input empty, e.g. if( has_term( ”, ‘genre’ ) ) { // do something } to see if the current post object has any terms in the genre taxonomy. It uses is_object_in_term() where: The given terms are checked against the object’s terms’ term_ids, names and slugs. Terms given as integers will … Read more
I came up with a solution for your first question. i.e the tax metabox that only suggests terms from existing terms list but does not allow you to add new terms. The solution is jQuery based and modifies the default behavior of the tags (i.e non heirarchical taxonomies) meta box. Limitation: Currently it only allows … Read more
Here is an example. I have also created a Gist with more generic code. add_action(‘add_meta_boxes’, ‘my_custom_metabox’); function my_custom_metabox() { add_meta_box(‘custom-taxonomy-dropdown’,’Brands’,’taxonomy_dropdowns_box’,’post’,’side’,’high’); } function taxonomy_dropdowns_box( $post ) { wp_nonce_field(‘custom-dropdown’, ‘dropdown-nonce’); $terms = get_terms( ‘brands’, ‘hide_empty=0’); $object_terms = wp_get_object_terms( $post->ID, ‘brands’, array(‘fields’=>’ids’)); // you can move the below java script to admin_head ?> <script type=”text/javascript”> jQuery(document).ready(function() { jQuery(‘#custombrandoptions’).change(function() … Read more
Just wrote the function. It’ll display the tinymce editor in every custom taxonomy description right now. Surely you can edit to show it for only some specific taxonomy. /** * Display advanced TinyMCE editor in taxonomy page */ function wpse_7156_enqueue_category() { global $pagenow, $current_screen; if( $pagenow == ‘edit-tags.php’ ) { require_once(ABSPATH . ‘wp-admin/includes/post.php’); require_once(ABSPATH . … Read more
When no hook is available, you can always count on the old jQuery trickery… add_action( ‘admin_footer-edit-tags.php’, ‘wpse_56569_remove_cat_tag_description’ ); function wpse_56569_remove_cat_tag_description(){ global $current_screen; switch ( $current_screen->id ) { case ‘edit-category’: // WE ARE AT /wp-admin/edit-tags.php?taxonomy=category // OR AT /wp-admin/edit-tags.php?action=edit&taxonomy=category&tag_ID=1&post_type=post break; case ‘edit-post_tag’: // WE ARE AT /wp-admin/edit-tags.php?taxonomy=post_tag // OR AT /wp-admin/edit-tags.php?action=edit&taxonomy=post_tag&tag_ID=3&post_type=post break; } ?> <script type=”text/javascript”> … Read more
This is certainly possible by utilizing some rewrite rules of your own to some extent. The WP_Rewrite API exposes functions that allow you to add rewrite rules (or ‘maps’) to convert a request to a query. There are prerequisites to writing good rewrite rules, and the most important one is basic regular expression comprehension. The … Read more
Starting from WordPress 4.4, you can use add_term_meta function to store metadata for a term. This is basically a key-value pair information which is stored in wp_termmeta table. Original Answer(Prior to WP 4.4) WordPress doesn’t have the option to add extra information to taxonomies. There isn’t any taxonomy_meta table. So, you have two options. Create … Read more