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wp_set_object_terms() Function WordPress Developer ...

    function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) { global $wpdb; $object_id = (int) $object_id; if ( ! taxonomy_exists( $taxonomy ) ) { return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) ); } if ( ! is_array( $terms ) ) { $terms = array( $terms ); } if ( ! $append ) { $old_tt_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'tt_ids', …

Wordpress Taxonomy - how does it know which object_id?

    term_id = reference key to term_id of wp_terms table. taxonomy = type of category(category=post category, link_category= link category,post_tag = tags associated with posts, nav_menu = navigation menu, etc. ) parent = id of parent category. assume that wp_term_relationships is a relationship table of product and category. where object_id is product id and term_taxonomy_id is category id 

WordPress Taxonomy « WordPress Codex

    wp_term_relationships The final table, term_relationships, relates objects such as posts or links to a term_taxonomy_id from the term_taxonomy table. object_id bigint(20) unsigned NOT NULL default 0, term_taxonomy_id bigint(20) unsigned NOT NULL default 0, term_order int(11) NOT NULL default 0, PRIMARY KEY (object_id,term_taxonomy_id), KEY term_taxonomy_id (term_taxonomy_id)

Add term_relationship_id column to wp ... - WordPress Trac

    Term relationships are unique thanks to their primary key being a combination of the object_id and term_taxonomy_id. Unfortunately, the meta-data API (as it exists today) only knows how to work with single IDs, and also expects that ID to be an INT , so it's not …

WP_Term Class WordPress Developer Resources

    $terms = $wpdb->get_results( $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 t.term_id = %d", $term_id ) ); if ( ! …

wp_delete_object_term_relationships() Function ...

    function wp_delete_object_term_relationships( $object_id, $taxonomies ) { $object_id = (int) $object_id; if ( ! is_array( $taxonomies ) ) { $taxonomies = array( $taxonomies ); } foreach ( (array) $taxonomies as $taxonomy ) { $term_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids' ) ); $term_ids = array_map( 'intval', $term_ids ); wp_remove_object_terms( $object_id, $term_ids, …

Understanding WordPress Taxonomy Table Relationships ...

    Aug 08, 2014 · SELECT wt.name, p.post_title, p.post_date FROM wp_terms wt INNER JOIN wp_term_taxonomy wtt ON wt.term_id = wtt.term_id INNER JOIN wp_term_relationships wtr ON wtt.term_taxonomy_id = wtr.term_taxonomy_id INNER JOIN wp_posts p ON wtr.object_id = p.ID WHERE p.post_type = 'post'

get_term() Function WordPress Developer Resources

    57 rows · wp-includes/taxonomy.php: wp_get_term_taxonomy_parent_id() Returns the term’s parent’s …

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