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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1755 | $terms = array_map('intval', $terms); |
| 1756 | wp_set_object_terms($object, $terms, $taxonomy); |
| 1757 | } |
| 1758 | |
| 1759 | // Clean the relationship caches for all object types using this term |
| 1760 | $tax_object = get_taxonomy( $taxonomy ); |
| 1761 | foreach ( $tax_object->object_type as $object_type ) |
| 1762 | clean_object_term_cache( $objects, $object_type ); |
| 1763 | |
| 1764 | do_action( 'delete_term_taxonomy', $tt_id ); |
| 1765 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = %d", $tt_id ) ); |
| 1766 | do_action( 'deleted_term_taxonomy', $tt_id ); |
| 1767 | |
| 1768 | // Delete the term if no taxonomies use it. |
| 1769 | if ( !$wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term) ) ) |
| 1770 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->terms WHERE term_id = %d", $term) ); |
| 1771 | |
| 1772 | clean_term_cache($term, $taxonomy); |
| 1773 | |