public function serialize(array $facets)
{
$urlFragmentSerializer = new URLFragmentSerializer();
$labels = [];
foreach ($facets as $facet) {
foreach ($facet->getFilters() as $filter) {
if ($filter->isActive()) {
$labels[$facet->getLabel()][] = $filter->getLabel();
}
}
}
return $urlFragmentSerializer->serialize($labels);
}
public function serialize(array $facets)
{
$facetFilters = $this->getActiveFacetFiltersFromFacets($facets);
$urlSerializer = new URLFragmentSerializer();
return $urlSerializer->serialize($facetFilters);
}
/**
* This method generates a URL stub for each filter inside the given facets
* and assigns this stub to the filters.
* The URL stub is called 'nextEncodedFacets' because it is used
* to generate the URL of the search once a filter is activated.
*/
private function addEncodedFacetsToFilters(array $facets)
{
// first get the currently active facetFilter in an array
$activeFacetFilters = $this->facetsSerializer->getActiveFacetFiltersFromFacets($facets);
$urlSerializer = new URLFragmentSerializer();
foreach ($facets as $facet) {
// If only one filter can be selected, we keep track of
// the current active filter to disable it before generating the url stub
// and not select two filters in a facet that can have only one active filter.
if (!$facet->isMultipleSelectionAllowed()) {
foreach ($facet->getFilters() as $filter) {
if ($filter->isActive()) {
// we have a currently active filter is the facet, remove it from the facetFilter array
$activeFacetFilters = $this->facetsSerializer->removeFilterFromFacetFilters($activeFacetFilters, $filter, $facet);
break;
}
}
}
foreach ($facet->getFilters() as $filter) {
$facetFilters = $activeFacetFilters;
// toggle the current filter
if ($filter->isActive()) {
$facetFilters = $this->facetsSerializer->removeFilterFromFacetFilters($facetFilters, $filter, $facet);
} else {
$facetFilters = $this->facetsSerializer->addFilterToFacetFilters($facetFilters, $filter, $facet);
}
// We've toggled the filter, so the call to serialize
// returns the "URL" for the search when user has toggled
// the filter.
$filter->setNextEncodedFacets($urlSerializer->serialize($facetFilters));
}
}
}
