function execute(VF_Schema $schema)
{
$this->legacyNumericSearch = (bool) $this->getConfig()->search->legacyNumericSearch;
$this->schema = $schema;
$levels = $schema->getLevels();
$c = count($levels);
$levelFinder = new VF_Level_Finder($schema);
/** @var VF_Level_Finder|VF_Level_Finder_Selector $levelFinder */
if (isset($_GET['front'])) {
$product = isset($_GET['product']) ? $_GET['product'] : null;
if (!$this->legacyNumericSearch) {
if ($this->shouldListAll()) {
$levelsToSelect = array($this->requestLevel());
$where = $this->requestLevels();
$vehicleFinder = new VF_Vehicle_Finder($schema);
$vehicles = $vehicleFinder->findDistinct($levelsToSelect, $where);
$children = array();
foreach ($vehicles as $vehicle) {
/** @var VF_Vehicle $vehicle */
array_push($children, $vehicle->getLevel($this->requestLevel()));
}
} else {
$children = $levelFinder->listInUseByTitle(new VF_Level($this->requestLevel()), $this->requestLevels(), $product);
}
} else {
if ($this->shouldListAll()) {
$children = $levelFinder->listAll(new VF_Level($this->requestLevel()), $this->requestLevels(), $product);
} else {
$children = $levelFinder->listInUse(new VF_Level($this->requestLevel()), $this->requestLevels(), $product);
}
}
} else {
$children = $levelFinder->listAll($this->requestLevel(), $this->requestLevels());
}
echo $this->renderChildren($children);
}