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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 |
---|---|
2781 | * Fires immediately before an object-term relationship is deleted. |
2782 | * |
2783 | * @since 2.9.0 |
2784 | * @since 4.7.0 Added the `$taxonomy` parameter. |
2785 | * |
2786 | * @param int $object_id Object ID. |
2787 | * @param array $tt_ids An array of term taxonomy IDs. |
2788 | * @param string $taxonomy Taxonomy slug. |
2789 | */ |
2790 | do_action( 'delete_term_relationships', $object_id, $tt_ids, $taxonomy ); |
2791 |
|
2792 | $deleted = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id ) ); |
2793 |
|
2794 | wp_cache_delete( $object_id, $taxonomy . '_relationships' ); |
2795 | wp_cache_delete( 'last_changed', 'terms' ); |
2796 |
|
2797 | /** |
2798 | * Fires immediately after an object-term relationship is deleted. |
2799 | * |