Here’s an (untested) example on how to get the saved post’s categories, check if any of them exists in another taxonomy, and terms that exists to the post. Instead of the generic save_post action you can use the post type specific one, save_post_{post_type}. If you want to prevent the check from running every time the … Read more
I have partly solved my own question so-to-speak. I’ve been trying to get post type relationships working for ages and the plugin relation post types as mentioned in my comment to Christopher’s answer. It is far from perfect, but I worked out how to get this plugin: http://wordpress.org/extend/plugins/relation-post-types/ – working (albeit not that pretty). The … Read more
There is a more generic function: it’s called get_ancestors() and it’s found in wp-includes/taxonomy.php
I think you mean you want to create terms in your taxonomy? Have a look at this answer for detecting when a theme is activated. Then use wp_insert_term to insert the terms into your taxonomy.
I have a solution, but it’s a really ugly one. I’d love to hear a better one, but I’m not sure it’s possible. WP_Query::get_posts() calls parse_tax_query() twice: first near the start, then again just before getting the SQL from it. There’s no single hook that lets me intercept and adjust the value of $tax_query in … Read more
Ok. I’ve found a solution. Thanks to this great article on Smashing Magazine The code to retrieve category description from any taxonomy term would be : <?php echo (get_term_by(‘slug’, ‘your-term-name’, ‘your-taxonomy-name’)->description); ?> As simple as that
You can assign taxonomies to objects saved in tables other than the posts table. WordPress explicitly supports that (e.g. there is the function _update_generic_term_count to update the term count for those types of taxonomies) and even use it for links. I have used it once. Just register your taxonomies as you would for regular post … Read more
I recommend not deleting the terms at the point of deactivation. Instead why don’t you delete the terms at the point of uninstallation? You can use the uninstall hook: http://codex.wordpress.org/Function_Reference/register_uninstall_hook Or bypass that. The plugin should create a file named ‘uninstall.php’ in the base plugin folder. This file will be called, if it exists, during … Read more
Have a taxonomy, with terms that are the same as the custom post type. Then in your taxonomy template, grab the custom post type that has the same post name as the current term slug. You can automate this slightly by having the celebrity term automatically created when you add the celebrity post etc Refer … Read more
This question is possibly a duplicate of: Only show metabox when date-value in other metabox is over? Broadly there are two ways of achieving this. Using the add_meta_boxes hook to pass two variables: post type and the post. Then add the metabox only when the post has a certain term: add_action( ‘add_meta_boxes’, ‘myplugin_add_my_custom_box’,10,2); function myplugin_add_my_custom_box($post_type,$post){ … Read more