I have a custom post type called Listings. The listings has taxonomies which I want to use to filter down the results when viewing all of the listings in the admin area.
To do this I tried to use the following:
function my_restrict_manage_posts() {
global $typenow;
$args = array('public' => true, '_builtin' => false);
$post_types = get_post_types($args);
if (in_array($typenow, $post_types)) {
$filters = get_object_taxonomies($typenow);
foreach ($filters as $tax_slug) {
$tax_obj = get_taxonomy($tax_slug);
wp_dropdown_categories(array(
'show_option_all' => __('Show All ' . $tax_obj->label),
'taxonomy' => $tax_slug,
'name' => $tax_obj->name,
'orderby' => 'term_order',
'selected' => $_GET[$tax_obj->query_var],
'hierarchical' => $tax_obj->hierarchical,
'show_count' => false,
'hide_empty' => true
));
}
}
}
function my_convert_restrict($query) {
global $pagenow;
global $typenow;
if ($pagenow == 'edit.php') {
$filters = get_object_taxonomies($typenow);
foreach ($filters as $tax_slug) {
$var = & $query->query_vars[$tax_slug];
if (isset($var)) {
$term = get_term_by('id', $var, $tax_slug);
$var = $term->slug;
}
}
}
}
add_action('restrict_manage_posts', 'my_restrict_manage_posts');
add_filter('parse_query', 'my_convert_restrict');
I am then able to choose the option in the drop down and then press filter and I get a URL like /wp-admin/edit.php?s&post_status=all&post_type=listings&action=-1&m=0&make=149&filter_action=Filter&paged=1&action2=-1
So the ID is being passed but then when the page reloads, I still have all of the listings and the filter hasn't worked. Any suggestions if there is anything I have missed or if there are any errors?