Posted By

kirichev on 03/16/11

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Last Edited at 03/16/11 01:49am

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Wordpress taxonomy filters in admin

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add_action( 'restrict_manage_posts', 'my_restrict_manage_posts' );
function my_restrict_manage_posts() {
 
    // only display these taxonomy filters on desired custom post_type listings
    global $typenow;
    if ($typenow == 'photos' || $typenow == 'videos') {
 
        // create an array of taxonomy slugs you want to filter by - if you want to retrieve all taxonomies, could use get_taxonomies() to build the list
        $filters = array('plants', 'animals', 'insects');
 
        foreach ($filters as $tax_slug) {
            // retrieve the taxonomy object
            $tax_obj = get_taxonomy($tax_slug);
            $tax_name = $tax_obj->labels->name;
            // retrieve array of term objects per taxonomy
            $terms = get_terms($tax_slug);
 
            // output html for taxonomy dropdown filter
            echo "<select name='$tax_slug' id='$tax_slug' class='postform'>";
            echo "<option value=''>Show All $tax_name</option>";
            foreach ($terms as $term) {
                // output each select option line, check against the last $_GET to show the current option selected
                echo '<option value='. $term->slug, $_GET[$tax_slug] == $term->slug ? ' selected="selected"' : '','>' . $term->name .' (' . $term->count .')</option>';
            }
            echo "</select>";
        }
    }
}