/**
* Add links to facets
*
* @param ResultSet $results
*/
public function addFacetLinks(ResultSet &$results)
{
// facets
$facets = $results->getFacets();
if ($facets != "") {
$group_id = 0;
foreach ($facets->getGroups() as $group) {
// this is used for javascript selecting
$group_id++;
$facet_id = 0;
// group identifiers
$group->group_id = 'facet-' . $group_id;
$group->param_name = 'facet.' . $group->name;
// link to multi-select facet page
$group_params = $this->query->getAllSearchParams();
$group_params['controller'] = $this->request->getParam('controller');
$group_params['action'] = 'facet';
$group_params['group'] = $group->param_name;
$group->url = $this->request->url_for($group_params);
// print_r($group->getFacets());
foreach ($group->getFacets() as $facet) {
$facet_id++;
$param_name = Query::getParamFromParts($group->name, urlencode($facet->key), $facet->is_excluded);
// link
$url = $this->facetParams();
if ($facet->is_excluded == true) {
// selecting this option removes our exclude param
foreach ($url as $key => $value) {
if ($key == $param_name) {
// if we have multiple values, only remove the matching one
if (is_array($value)) {
$new_array = array();
foreach ($value as $entry) {
if ($entry != $facet->name) {
$new_array[] = $entry;
}
}
$url[$key] = $new_array;
} else {
$url[$key] = '';
}
}
}
} else {
// selecting this option adds our param
$url[$param_name] = $facet->name;
}
$facet->url = $this->request->url_for($url);
// facet identifiers
$facet->input_id = $group->group_id . '-' . $facet_id;
// add the name of the param as well
$facet->param_name = $param_name;
// see if this facet is selected (for multi-select facets)
if ($this->request->hasParamValue($param_name, $facet->name)) {
$facet->selected = true;
}
// exclude facet param
$facet->param_exclude = str_replace('facet.', 'facet.remove.', $param_name);
}
}
}
}
