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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 |
|---|---|
| 2545 | // The alias isn't in a group, so let's create a new one and firstly add the alias term to it. |
| 2546 | $term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1; |
| 2547 | do_action( 'edit_terms', $alias->term_id, $taxonomy ); |
| 2548 | $wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) ); |
| 2549 | do_action( 'edited_terms', $alias->term_id, $taxonomy ); |
| 2550 | } |
| 2551 | } |
| 2552 | |
| 2553 | // Check $parent to see if it will cause a hierarchy loop |
| 2554 | $parent = apply_filters( 'wp_update_term_parent', $parent, $term_id, $taxonomy, compact( array_keys( $args ) ), $args ); |
| 2555 | |
| 2556 | // Check for duplicate slug |
| 2557 | $id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE slug = %s", $slug ) ); |
| 2558 | if ( $id && ($id != $term_id) ) { |
| 2559 | // If an empty slug was passed or the parent changed, reset the slug to something unique. |
| 2560 | // Otherwise, bail. |
| 2561 | if ( $empty_slug || ( $parent != $term['parent']) ) |
| 2562 | $slug = wp_unique_term_slug($slug, (object) $args); |
| 2563 | else |