Adding the Component Category Tree

Adding the Component Category Tree

5 Jahre 5 Monate her - 5 Jahre 5 Monate her #998 von Joris Ceelen

Hi

I find myself using the following two classes a lot, unfortunately Component Creator does not set them up automatically when adding a Joomla Category field to your components table, but then it is easy.
api.joomla.org/cms-3/classes/JCategoryNode.html
api.joomla.org/cms-3/classes/JCategories.html

I like these functions and the way you can navigate the category tree

$cats=JCategories::getInstance('Form_nutrition_fact_groups');
$cat=$cats->get($catid);
$params=$cat->getParams();

how to enable this ? ( it would be great if Component Creator would generate this file too!)

Create a file category.php in the front end under 
JPATH_COMPONENT/helpers/...

here is an example of my file in
components/com_form_nutrition_fact_groups/helpers/category.php,
I think it speaks for itself
<?php
/**
 * @package     Joomla.Site
 * @subpackage  com_content
 *
 * @copyright   Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */
defined('_JEXEC') or die;
/**
 * Content Component Category Tree
 *
 * @since  1.6
 */
class Form_nutrition_fact_groupsCategories extends JCategories
{
   /**
    * Class constructor
    *
    * @param   array  $options  Array of options
    *
    * @since   11.1
    */
   public function __construct($options = array())
   {
      $options['table'] = '#__form_nutrition_fact_groups` ';
      $options['extension'] = 'com_form_nutrition_fact_groups';
      $options['field'] = 'nutrition_fact_cat_id';
      parent::__construct($options);
   }
}
thanks!!

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