public function build_filter_field($filter, $key, $section)
{
// set up the faceting params
if ($section->facet) {
$sf = $section->filter;
$facet = $filter->facet->{$sf};
$facet->field_ext = $filter->facet_search_ext;
$facet->filter_name = $sf;
//$section->filter;
foreach ($section->facet as $attr => $value) {
$facet->{$attr} = $value;
}
// automatically populate facet limit if show_max is sepecified
if ($section->facet->show_max && !$facet->limit) {
$facet->limit = $section->facet->show_max + 1;
}
// Handle count reducing tag/exclude for multi-choice filter fields
if ($section->facet->select == "multiple") {
$facet->multi = true;
}
}
parent::build_filter_field($filter, $key, $section);
}
