/**
* Recursively builds a sub menu structure for the current menu.
*
* @param array $facetOptions Array of facet options
* @param string $menuName Name of the top level menu to build the sub menu structure for
* @param integer $level The sub level depth
* @return array Returns an array sub menu structure if a sub menu exists, an empty array otherwise
*/
protected function getSubMenu(array $facetOptions, $menuName, $level)
{
$menu = array();
$subMenuEntryPrefix = $level . '-' . $menuName . '/';
foreach ($facetOptions as $facetOptionKey => $facetOption) {
// find the sub menu items for the current menu
if (GeneralUtility::isFirstPartOfStr($facetOptionKey, $subMenuEntryPrefix)) {
$currentMenu = array('title' => $this->getFacetOptionLabel($facetOptionKey, $facetOption['numberOfResults']), 'facetKey' => HierarchicalFacetRenderer::getLastPathSegmentFromHierarchicalFacetOption($facetOptionKey), 'numberOfResults' => $facetOption['numberOfResults'], '_OVERRIDE_HREF' => $facetOption['url'], 'ITEM_STATE' => $facetOption['selected'] ? 'ACT' : 'NO', '_PAGES_OVERLAY' => $GLOBALS['TSFE']->sys_language_uid > 0);
$lastPathSegment = HierarchicalFacetRenderer::getLastPathSegmentFromHierarchicalFacetOption($facetOptionKey);
// move one level down (recursion)
$subMenu = $this->getSubMenu($facetOptions, $menuName . '/' . $lastPathSegment, $level + 1);
if (!empty($subMenu)) {
$currentMenu['_SUB_MENU'] = $subMenu;
if ($currentMenu['ITEM_STATE'] == 'ACT') {
$currentMenu['ITEM_STATE'] = 'ACTIFSUB';
} else {
$currentMenu['ITEM_STATE'] = 'IFSUB';
}
}
$menu[] = $currentMenu;
}
}
// return one level up
return $menu;
}
/**
* Generates a facet option label from the given facet option.
*
* @param string $facetOptionKey A hierachical facet option path
* @param integer $facetOptionResultCount
* @return string The label for the facet option consisting of the last part of the path and the options result count
*/
protected function getFacetOptionLabel($facetOptionKey, $facetOptionResultCount)
{
// use the last path segment and the result count to build the label
$lastPathSegment = HierarchicalFacetRenderer::getLastPathSegmentFromHierarchicalFacetOption($facetOptionKey);
$facetOptionLabel = $lastPathSegment . ' (' . $facetOptionResultCount . ')';
return $facetOptionLabel;
}