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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1077 | |
| 1078 | if ( !is_array($taxonomies) ) |
| 1079 | $taxonomies = array($taxonomies); |
| 1080 | |
| 1081 | foreach ( (array) $taxonomies as $taxonomy ) { |
| 1082 | $tt_ids = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids'); |
| 1083 | $in_tt_ids = "'" . implode("', '", $tt_ids) . "'"; |
| 1084 | do_action( 'delete_term_relationships', $object_id, $tt_ids ); |
| 1085 | $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_tt_ids)", $object_id) ); |
| 1086 | do_action( 'deleted_term_relationships', $object_id, $tt_ids ); |
| 1087 | wp_update_term_count($tt_ids, $taxonomy); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | /** |
| 1092 | * Removes a term from the database. |
| 1093 | * |
| 1094 | * If the term is a parent of other terms, then the children will be updated to |
| 1095 | * that term's parent. |
| Line | Code |
| 1495 | |
| 1496 | wp_update_term_count($tt_ids, $taxonomy); |
| 1497 | |
| 1498 | if ( ! $append ) { |
| 1499 | $delete_terms = array_diff($old_tt_ids, $tt_ids); |
| 1500 | if ( $delete_terms ) { |
| 1501 | $in_delete_terms = "'" . implode("', '", $delete_terms) . "'"; |
| 1502 | do_action( 'delete_term_relationships', $object_id, $delete_terms ); |
| 1503 | $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->term_relationships WHERE object_id = %d AND term_taxonomy_id IN ($in_delete_terms)", $object_id) ); |
| 1504 | do_action( 'deleted_term_relationships', $object_id, $delete_terms ); |
| 1505 | wp_update_term_count($delete_terms, $taxonomy); |
| 1506 | } |
| 1507 | } |
| 1508 | |
| 1509 | $t = get_taxonomy($taxonomy); |
| 1510 | if ( ! $append && isset($t->sort) && $t->sort ) { |
| 1511 | $values = array(); |
| 1512 | $term_order = 0; |
| 1513 | $final_tt_ids = wp_get_object_terms($object_id, $taxonomy, 'fields=tt_ids'); |