public function add_rewrite_rule($taxonomy_name, $tax_base, $wp_query_var, $query_var, $rules)
{
global $wp_rewrite;
$new_rules = array();
$taxonomy = get_taxonomy($taxonomy_name);
$permalink_structure = get_option('permalink_structure');
$blog_prefix = '';
if (is_multisite() && !is_subdomain_install() && is_main_site() && 0 === strpos($permalink_structure, '/blog/')) {
$blog_prefix = 'blog/';
}
$terms = hocwp_get_terms($taxonomy_name, array('hide_empty' => false));
if (hocwp_array_has_value($terms)) {
foreach ($terms as $term) {
$term_nicename = $term->slug;
if ($term->parent == $term->cat_ID) {
$term->parent = 0;
} elseif ($taxonomy->rewrite['hierarchical'] != 0 && $term->parent != 0) {
$parents = hocwp_get_term_parents($taxonomy_name, $term->parent, false, '/', true);
if (!is_wp_error($parents)) {
$term_nicename = $parents . $term_nicename;
}
unset($parents);
}
$new_rules[$blog_prefix . '(' . $term_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?' . $wp_query_var . '=$matches[1]&feed=$matches[2]';
$new_rules[$blog_prefix . '(' . $term_nicename . ')/' . $wp_rewrite->pagination_base . '/?([0-9]{1,})/?$'] = 'index.php?' . $wp_query_var . '=$matches[1]&paged=$matches[2]';
$new_rules[$blog_prefix . '(' . $term_nicename . ')/?$'] = 'index.php?' . $wp_query_var . '=$matches[1]';
}
unset($terms, $term, $term_nicename);
}
$old_base = $wp_rewrite->get_extra_permastruct($taxonomy_name);
$old_base = str_replace('%' . $tax_base . '%', '(.+)', $old_base);
$old_base = trim($old_base, '/');
$new_rules[$old_base . '$'] = 'index.php?' . $query_var . '=$matches[1]';
if (hocwp_array_has_value($new_rules)) {
$rules = $new_rules;
}
unset($new_rules, $old_base);
return $rules;
}
function hocwp_get_term_parents($taxonomy, $id, $link = false, $separator = '/', $nicename = false, $visited = array())
{
$chain = '';
$parent = get_term($id, $taxonomy);
if (is_wp_error($parent)) {
return $parent;
}
if ($nicename) {
$name = $parent->slug;
} else {
$name = $parent->name;
}
if ($parent->parent && $parent->parent != $parent->term_id && !in_array($parent->parent, $visited)) {
$visited[] = $parent->parent;
$chain .= hocwp_get_term_parents($taxonomy, $parent->parent, $link, $separator, $nicename, $visited);
}
if ($link) {
$chain .= '<a href="' . esc_url(get_term_link($parent)) . '">' . $name . '</a>' . $separator;
} else {
$chain .= $name . $separator;
}
return $chain;
}
