/** @brief Constructs new cluster helper instance.
*
* @param $cluster [in] One cluster reply.
* @param $meta [in] Reply set meta data.
* @param $facet_helper [in] Facet helper (used to retrieve value label).
* @param $query [in] AfsQuery object previously initialized. It is used to
* generate new query to filter on this cluster reply.
* @param $config [in] Helper configuration.
*/
public function __construct($cluster, AfsMetaHelper $meta, $facet_helper, AfsQuery $query, AfsHelperConfiguration $config)
{
$formatter = AfsFacetHelperRetriever::get_formatter($meta->get_cluster_id(), $query);
$this->id = $formatter->format($cluster->id);
$this->initialize_label($facet_helper);
$this->total_replies = $cluster->totalItems;
$factory = new AfsReplyHelperFactory($config->get_reply_text_visitor());
$this->replies = $factory->create_replies($meta->get_feed(), $cluster);
$this->query = $query->auto_set_from()->unset_cluster()->add_filter($meta->get_cluster_id(), $this->id);
$this->config = $config;
}
protected function initialize_cluster($reply_set, $query, $config)
{
if (property_exists($reply_set, 'content') && property_exists($reply_set->content, 'cluster')) {
$clustering_id = $this->get_meta()->get_cluster_id();
$facet_helper = AfsFacetHelperRetriever::get_helper($clustering_id, $this->facets);
$this->update_meta($facet_helper);
foreach ($reply_set->content->cluster as $cluster) {
$helper = new AfsClusterHelper($cluster, $this->get_meta(), $facet_helper, $query, $config);
$this->clusters[$helper->get_id()] = $helper;
}
}
}
/** @brief Creates recursively facet elements.
*
* @param $facet_id [in] current facet id. This value is used to update
* current query for each facet element.
* @param $facet_element [in] starting point used to create facet elements.
* @param $config [in] helper configuration object.
*
* @return list of facet elements (see @ AfsFacetValueHelper).
*/
public function create_elements($facet_id, $facet_element, AfsHelperConfiguration $config, $feed = null)
{
$formatter = AfsFacetHelperRetriever::get_formatter($facet_id, $this->query);
return $this->create_elements_recursively($facet_id, $facet_element, $formatter, $config, $feed);
}