public function getByTag($tag)
    {
        $taggings = $this->getTaggings();
        
        if (array_key_exists($tag, $taggings)) {
            return $taggings[$tag];
        }
        
        return array();
    }
public function getByTag($tag)
    {
        $taggings = $this->getTaggings();
        
        if (array_key_exists($tag, $taggings)) {
            return $taggings[$tag];
        }
        
        return array();
    }
Returns array of items tagged with the given tag