ullCms filter by tags / taggable / tagging

Works for models UllCmsPage and UllCmsContentBlock

/apps/frontend/modules/ullCms/actions/actions.php:

  public function executeShowExample(sfRequest $request)
  {
    $q = new UllQuery('UllCmsPage');
   
    if ($byTag = $request->getParameter('by_tag'))
    {
      $q->where('duplicate_tags_for_search LIKE ?', '%' . $byTag . '%');
    }
   
    $this->pageByParentSlug($this->doc->slug, null, 'created_at desc', $q);
  }

/apps/frontend/modules/ullCms/templates/showExample.php:

<div id="example_tags">
  <span class="example_filtertext">Tags:</span>
  <?php include_partial('ullCms/tagList', array(
    'link_replacement' => '@ull_cms_show?slug=example&by_tag=%tag%',
    'show_all_tag' => true,
    'use_content_blocks' => true,
  )) ?>
</div> 

<div id="example_entries">
  <?php foreach ($docs as $currentDoc): ?>
    <?php $currentDoc->refreshRelated('Translation') ?>
    
    <div class="example_entry">
      <h2>
        <?php include_component('ullCms', 'editLink', array('doc' => $currentDoc)) ?>
        <?php include_component('ullCms', 'deleteLink', array('doc' => $currentDoc)) ?>
        <?php echo $currentDoc->title ?>
      </h2>  

      <?php echo $currentDoc->body ?>    
    </div>    
  <?php endforeach ?>
  
  <?php if (!count($docs)): ?>
    <?php echo __('No results found', null, 'common') ?>.
  <?php endif ?>
  
  <?php if (isset($pager)): ?>
    <?php include_partial('ullTableTool/ullPagerBottom', array('pager' => $pager)); ?>
  <?php endif ?>
</div>

.