Source
File: wp-admin/includes/class-wp-terms-list-table.php
public function display_rows_or_placeholder() {
$taxonomy = $this->screen->taxonomy;
$args = wp_parse_args(
$this->callback_args,
array(
'taxonomy' => $taxonomy,
'page' => 1,
'number' => 20,
'search' => '',
'hide_empty' => 0,
)
);
$page = $args['page'];
// Set variable because $args['number'] can be subsequently overridden.
$number = $args['number'];
$offset = ( $page - 1 ) * $number;
$args['offset'] = $offset;
// Convert it to table rows.
$count = 0;
if ( is_taxonomy_hierarchical( $taxonomy ) && ! isset( $args['orderby'] ) ) {
// We'll need the full set of terms then.
$args['number'] = 0;
$args['offset'] = $args['number'];
}
$terms = get_terms( $args );
if ( empty( $terms ) || ! is_array( $terms ) ) {
echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">';
$this->no_items();
echo '</td></tr>';
return;
}
if ( is_taxonomy_hierarchical( $taxonomy ) && ! isset( $args['orderby'] ) ) {
if ( ! empty( $args['search'] ) ) {// Ignore children on searches.
$children = array();
} else {
$children = _get_term_hierarchy( $taxonomy );
}
/*
* Some funky recursion to get the job done (paging & parents mainly) is contained within.
* Skip it for non-hierarchical taxonomies for performance sake.
*/
$this->_rows( $taxonomy, $terms, $children, $offset, $number, $count );
} else {
foreach ( $terms as $term ) {
$this->single_row( $term );
}
}
}