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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 |
|---|---|
| 2127 | $edit_tt_ids = wp_list_pluck( $edit_ids, 'term_taxonomy_id' ); |
| 2128 | |
| 2129 | /** |
| 2130 | * Fires immediately before a term to delete's children are reassigned a parent. |
| 2131 | * |
| 2132 | * @since 2.9.0 |
| 2133 | * |
| 2134 | * @param array $edit_tt_ids An array of term taxonomy IDs for the given term. |
| 2135 | */ |
| 2136 | do_action( 'edit_term_taxonomies', $edit_tt_ids ); |
| 2137 | |
| 2138 | $wpdb->update( $wpdb->term_taxonomy, compact( 'parent' ), array( 'parent' => $term_obj->term_id) + compact( 'taxonomy' ) ); |
| 2139 | |
| 2140 | // Clean the cache for all child terms. |
| 2141 | $edit_term_ids = wp_list_pluck( $edit_ids, 'term_id' ); |
| 2142 | clean_term_cache( $edit_term_ids, $taxonomy ); |
| 2143 | |
| 2144 | /** |
| 2145 | * Fires immediately after a term to delete's children are reassigned a parent. |