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<?php | |
/** | |
* Remove a given term from the specified post | |
* | |
* Helper function since this functionality doesn't exist in core | |
*/ | |
function my_remove_post_term( $post_id, $term, $taxonomy ) { | |
if ( ! is_numeric( $term ) ) { |
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// This gist is now maintained on github at https://github.com/luetkemj/wp-query-ref | |
<?php | |
/** | |
* WordPress Query Comprehensive Reference | |
* Compiled by luetkemj - luetkemj.github.io | |
* | |
* CODEX: http://codex.wordpress.org/Class_Reference/WP_Query#Parameters | |
* Source: https://core.trac.wordpress.org/browser/tags/4.9.4/src/wp-includes/query.php | |
*/ |
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add_filter('posts_clauses', 'posts_clauses_with_tax', 10, 2); | |
function posts_clauses_with_tax( $clauses, $wp_query ) { | |
global $wpdb; | |
//array of sortable taxonomies | |
$taxonomies = array('example-taxonomy', 'other-taxonomy'); | |
if (isset($wp_query->query['orderby']) && in_array($wp_query->query['orderby'], $taxonomies)) { | |
$clauses['join'] .= " | |
LEFT OUTER JOIN {$wpdb->term_relationships} AS rel2 ON {$wpdb->posts}.ID = rel2.object_id | |
LEFT OUTER JOIN {$wpdb->term_taxonomy} AS tax2 ON rel2.term_taxonomy_id = tax2.term_taxonomy_id | |
LEFT OUTER JOIN {$wpdb->terms} USING (term_id) |