Symfony Profiler

<?php
namespace Knp\Component\Pager\Event\Subscriber\Sortable;
use Knp\Component\Pager\Event\ItemsEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\PropertyAccess\Exception\UnexpectedTypeException;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\PropertyAccess\PropertyAccess;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
use Knp\Component\Pager\PaginatorInterface;
class ArraySubscriber implements EventSubscriberInterface
{
/**
* @var string the field used to sort current object array list
*/
private $currentSortingField;
/**
* @var string the sorting direction
*/
private $sortDirection;
/**
* @var PropertyAccessorInterface
*/
private $propertyAccessor;
/**
* @var Request
*/
private $request;
public function __construct(Request $request = null, PropertyAccessorInterface $accessor = null)
{
if (!$accessor && class_exists('Symfony\Component\PropertyAccess\PropertyAccess')) {
$accessor = PropertyAccess::createPropertyAccessorBuilder()->enableMagicCall()->getPropertyAccessor();
}
$this->propertyAccessor = $accessor;
// check needed because $request must be nullable, being the second parameter (with the first one nullable)
if (null === $request) {
throw new \InvalidArgumentException('Request must be initialized.');
}
$this->request = $request;
}
public function items(ItemsEvent $event): void
{
// Check if the result has already been sorted by an other sort subscriber
$customPaginationParameters = $event->getCustomPaginationParameters();
if (!empty($customPaginationParameters['sorted']) ) {
return;
}
if (!is_array($event->target) || !$this->request->query->has($event->options[PaginatorInterface::SORT_FIELD_PARAMETER_NAME])) {
return;
}
$event->setCustomPaginationParameter('sorted', true);
if (isset($event->options[PaginatorInterface::SORT_FIELD_WHITELIST]) && !in_array($this->request->query->get($event->options[PaginatorInterface::SORT_FIELD_PARAMETER_NAME]), $event->options[PaginatorInterface::SORT_FIELD_WHITELIST])) {
throw new \UnexpectedValueException("Cannot sort by: [{$this->request->query->get($event->options[PaginatorInterface::SORT_FIELD_PARAMETER_NAME])}] this field is not in whitelist");
}
$sortFunction = isset($event->options['sortFunction']) ? $event->options['sortFunction'] : [$this, 'proxySortFunction'];
$sortField = $this->request->query->get($event->options[PaginatorInterface::SORT_FIELD_PARAMETER_NAME]);
// compatibility layer
if ($sortField[0] === '.') {
$sortField = substr($sortField, 1);
}
call_user_func_array($sortFunction, [
&$event->target,
$sortField,
$this->getSortDirection($event->options)
]);
}
private function getSortDirection(array $options): string
{
if (!$this->request->query->has($options[PaginatorInterface::SORT_DIRECTION_PARAMETER_NAME])) {
return 'desc';
}
$direction = $this->request->query->get($options[PaginatorInterface::SORT_DIRECTION_PARAMETER_NAME]);
if (strtolower($direction) === 'asc') {
return 'asc';
}
return 'desc';
}
private function proxySortFunction(&$target, $sortField, $sortDirection): bool
{
$this->currentSortingField = $sortField;
$this->sortDirection = $sortDirection;
return usort($target, [$this, 'sortFunction']);
}
/**
* @param mixed $object1 first object to compare
* @param mixed $object2 second object to compare
*
* @return int
*/
private function sortFunction($object1, $object2): int
{
if (!$this->propertyAccessor) {
throw new \UnexpectedValueException('You need symfony/property-access component to use this sorting function');
}
if (!$this->propertyAccessor->isReadable($object1, $this->currentSortingField) || !$this->propertyAccessor->isReadable($object2, $this->currentSortingField)) {
return 0;
}
try {
$fieldValue1 = $this->propertyAccessor->getValue($object1, $this->currentSortingField);
} catch (UnexpectedTypeException $e) {
return -1 * $this->getSortCoefficient();
}
try {
$fieldValue2 = $this->propertyAccessor->getValue($object2, $this->currentSortingField);
} catch (UnexpectedTypeException $e) {
return 1 * $this->getSortCoefficient();
}
if (is_string($fieldValue1)) {
$fieldValue1 = mb_strtolower($fieldValue1);
}
if (is_string($fieldValue2)) {
$fieldValue2 = mb_strtolower($fieldValue2);
}
if ($fieldValue1 === $fieldValue2) {
return 0;
}
return ($fieldValue1 > $fieldValue2 ? 1 : -1) * $this->getSortCoefficient();
}
private function getSortCoefficient(): int
{
return $this->sortDirection === 'asc' ? 1 : -1;
}
public static function getSubscribedEvents(): array
{
return [
'knp_pager.items' => ['items', 1]
];
}
}

vendor/knplabs/knp-components/src/Knp/Component/Pager/Event/Subscriber/Sortable/ArraySubscriber.php line 49