Source
File: wp-admin/includes/ajax-actions.php
function _wp_ajax_add_hierarchical_term() {
$action = $_POST['action'];
$taxonomy = get_taxonomy( substr( $action, 4 ) );
check_ajax_referer( $action, '_ajax_nonce-add-' . $taxonomy->name );
if ( ! current_user_can( $taxonomy->cap->edit_terms ) ) {
wp_die( -1 );
}
$names = explode( ',', $_POST[ 'new' . $taxonomy->name ] );
$parent = isset( $_POST[ 'new' . $taxonomy->name . '_parent' ] ) ? (int) $_POST[ 'new' . $taxonomy->name . '_parent' ] : 0;
if ( 0 > $parent ) {
$parent = 0;
}
if ( 'category' === $taxonomy->name ) {
$post_category = isset( $_POST['post_category'] ) ? (array) $_POST['post_category'] : array();
} else {
$post_category = ( isset( $_POST['tax_input'] ) && isset( $_POST['tax_input'][ $taxonomy->name ] ) ) ? (array) $_POST['tax_input'][ $taxonomy->name ] : array();
}
$checked_categories = array_map( 'absint', (array) $post_category );
$popular_ids = wp_popular_terms_checklist( $taxonomy->name, 0, 10, false );
foreach ( $names as $cat_name ) {
$cat_name = trim( $cat_name );
$category_nicename = sanitize_title( $cat_name );
if ( '' === $category_nicename ) {
continue;
}
$cat_id = wp_insert_term( $cat_name, $taxonomy->name, array( 'parent' => $parent ) );
if ( ! $cat_id || is_wp_error( $cat_id ) ) {
continue;
} else {
$cat_id = $cat_id['term_id'];
}
$checked_categories[] = $cat_id;
if ( $parent ) { // Do these all at once in a second.
continue;
}
ob_start();
wp_terms_checklist(
0,
array(
'taxonomy' => $taxonomy->name,
'descendants_and_self' => $cat_id,
'selected_cats' => $checked_categories,
'popular_cats' => $popular_ids,
)
);
$data = ob_get_clean();
$add = array(
'what' => $taxonomy->name,
'id' => $cat_id,
'data' => str_replace( array( "\n", "\t" ), '', $data ),
'position' => -1,
);
}
if ( $parent ) { // Foncy - replace the parent and all its children.
$parent = get_term( $parent, $taxonomy->name );
$term_id = $parent->term_id;
while ( $parent->parent ) { // Get the top parent.
$parent = get_term( $parent->parent, $taxonomy->name );
if ( is_wp_error( $parent ) ) {
break;
}
$term_id = $parent->term_id;
}
ob_start();
wp_terms_checklist(
0,
array(
'taxonomy' => $taxonomy->name,
'descendants_and_self' => $term_id,
'selected_cats' => $checked_categories,
'popular_cats' => $popular_ids,
)
);
$data = ob_get_clean();
$add = array(
'what' => $taxonomy->name,
'id' => $term_id,
'data' => str_replace( array( "\n", "\t" ), '', $data ),
'position' => -1,
);
}
ob_start();
wp_dropdown_categories(
array(
'taxonomy' => $taxonomy->name,
'hide_empty' => 0,
'name' => 'new' . $taxonomy->name . '_parent',
'orderby' => 'name',
'hierarchical' => 1,
'show_option_none' => '— ' . $taxonomy->labels->parent_item . ' —',
)
);
$sup = ob_get_clean();
$add['supplemental'] = array( 'newcat_parent' => $sup );
$x = new WP_Ajax_Response( $add );
$x->send();
}