/**
* Add params for a range facet to request
*
* @param Request $request
* @param FacetPivot $facet
* @return void
*/
public function addFacetPivot($request, $facet)
{
$stats = $facet->getStats();
if (count($stats) > 0) {
$key = array('stats' => implode('', $stats));
// when specifying stats, solr sets the field as key
$facet->setKey(implode(',', $facet->getFields()));
} else {
$key = array('key' => $facet->getKey());
}
$request->addParam('facet.pivot', $this->renderLocalParams(implode(',', $facet->getFields()), array_merge($key, array('ex' => $facet->getExcludes()))));
$request->addParam('facet.pivot.mincount', $facet->getMinCount(), true);
}