custom-taxonomy - Read For Learn

Multiple users – only allow them to manage their own terms for custom taxonomy when logged in

Thanks for the AWESOME solution MikeSchinkel 😀 I just did the following updates in the code and it worked like a charm: add_filter(‘list_terms_exclusions’, ‘yoursite_list_terms_exclusions’, 10, 2); function yoursite_list_terms_exclusions( $exclusions ) { $currentScreen = get_current_screen(); if( current_user_can( ‘my_custom_capability_assigned_to_specific_users’ ) && !current_user_can( ‘manage_options’ ) // Show everything to Admin && is_object( $currentScreen ) && $currentScreen->id == ‘edit-<my_taxonomy>’ … Read more

URL rewrite rules for multiple taxonomies query

(.*) matches everything, so it will “eat up” the extra characters (it is “greedy”). If the URL is /tax1/foo/tax2/bar/, the first (.*) will be foo/tax2/bar/, so nothing is left for the second match. Instead of (.*) you can use the “non-greedy” version (.+?). This will match as much as possible, but still keep the rest … Read more

pre_get_posts OR relation between taxonomy and author

When I implemented something similar for a company that needed multiple authors, we did much the same with an author taxonomy. But in that case, we didn’t use the original author field at all. Basically, it’s not possible to create a standard WP_Query with author=X OR coauthor=Y using standard methods. You’d have to resort to … Read more

How to find taxonomy name using only taxonomy TERM ID (or taxonomy term name)

How about using the get_term function? If you look at the code the sql it uses is as follows: $_term = $wpdb->get_row( $wpdb->prepare( “SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = %s AND t.term_id = %d LIMIT 1”, $taxonomy, $term) ); which should be … Read more

Archive template for taxonomy terms

I want to document this because I just found the answer recently. The problem with having taxonomy is that most developers have the mindset of expecting the taxonomy to be seen inside the post_type url of: http://hostname/post_type/taxonomy_term Instead, you are going to find the url in: http://hostname/taxonomy_slug/taxonomy_term This means that we often may be creating … Read more

Scheduling posts to update once per day with wp_cron

This is a typical example of an X-Y problem. Your cron is fine. Your logic not so. You have a function that hooks into save_posts and you think that passing the array $update = array( ‘ID’ => get_the_ID() ) will trigger the action and so your post will update the taxonomy. That’s incorrect, unfortunately. Passing … Read more

get_terms() returns an empty array

get_terms returns an array of objects. You cannot echo an array, if you do, you will just get Array(). What you can do is print_r($array) or var_dump($array) or echo json_encode($array) to see the data it contains. Otherwise, to get single elements, e.g. the name, from the objects, you need to pass $tax_terms through a foreach … Read more

Custom taxonomies, with custom rewrites/slug, AND loading a taxonomy archive template from a plugin

Background & Core Functionality Why a Taxonomy Path Slug Alone Produces a 404 However this slug doesnt work. mysite.com/wiki/help-topics throws a 404. WordPress does not provide a mechanism for “an archive of taxonomy terms” out of the box – that is, neither the template hierarchy nor the WP_Query/WP_Tax_Query logic support a direct display of terms … Read more

Displaying the Name of the Queried Taxonomy Term on a Term Archive Page?

Use: $tax = $wp_query->get_queried_object(); printf( __( ‘Posts classified under: %s’, ‘textdomain’ ), ‘<span>’ . $tax->name . ‘</span>’ );

Get the latest taxonomy/category?

The latest edition should always be the term in that taxonomy with the highest term_id, right? Query get_terms and find the latest edition, then use that term to build the rest of your query… $edition = get_terms(‘edition’,’orderby=none&order=DESC&number=1′); $latest_edition = $edition[0]->slug; Then you can either modify the current query, if that’s what you want to do: … Read more

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