Title: robbora's Replies | WordPress.org

---

# robbora

  [  ](https://wordpress.org/support/users/robbora/)

 *   [Profile](https://wordpress.org/support/users/robbora/)
 *   [Topics Started](https://wordpress.org/support/users/robbora/topics/)
 *   [Replies Created](https://wordpress.org/support/users/robbora/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/robbora/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/robbora/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/robbora/engagements/)
 *   [Favorites](https://wordpress.org/support/users/robbora/favorites/)

 Search replies:

## Forum Replies Created

Viewing 1 replies (of 1 total)

 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[Listo] Custom lists?](https://wordpress.org/support/topic/custom-lists-3/)
 *  [robbora](https://wordpress.org/support/users/robbora/)
 * (@robbora)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/custom-lists-3/#post-12798205)
 * As I had the same issue here an example code to add available categories in a
   checkbox list
 * In **yourtheme/functions.php** add following code lines:
 *     ```
       add_filter('listo_list_types', 'listo_list_types_func');
       function listo_list_types_func($list_types){
       	$list_types['categories'] = 'Listo_Categories';
       	return $list_types;
       }
   
       class Listo_Categories implements Listo {
   
       	public static function items(){
       		$categories = get_categories(['hide_empty' => 0]);
   
       		foreach( $categories as $cat ){
       			$items [$cat->cat_ID] = $cat->name;
       		}
   
       		return $items;
       	}
   
       	public static function groups(){}
       }
       ```
   
 * In your **CF7 form** add the following **[shortcode]**
 *     ```
       [checkbox categories data:categories]
       ```
   
 * That’s it
 * Hope this help
    -  This reply was modified 6 years, 1 month ago by [robbora](https://wordpress.org/support/users/robbora/).

Viewing 1 replies (of 1 total)