gistfile1.php

public function categories($category = null) {
    if ($category != null) {
      if (!$this->Config->find('first', array( 'conditions' => array('Config.Category' => $category)))) {
        throw new NotFoundException(__('Invalid Config Category'));
      }

      $config = $this->Config->find('all', array(
        'conditions' => array('Config.Category' => $category),
        'recursive' => 0
      ));

      $config = $this->ConfigParser->parseOptions($config);

      $this->set(array(
        'config' => $config,
        '_serialize' => array('config')
      ));
    } else {
      $categories = $this->Config->find('all', array(
        'fields' => array('DISTINCT Config.Category'),
        'conditions' => array('Config.Category !=' => 'hidden'),
        'recursive' => 0
      ));
      $this->set(array(
        'categories' => $categories,
        '_serialize' => array('categories')
      ));
    }

  }

  public function keyValues() {
    $keyValues = $this->Config->find('list', array(
      'fields' => array('Config.Name', 'Config.Value')
    ));
    $this->set(array(
      'keyValues' => $keyValues,
      '_serialize' => array('keyValues')
    ));
  }