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<?php |
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namespace LAG\AdminBundle\Event\Subscriber; |
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use LAG\AdminBundle\Event\Events; |
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use LAG\AdminBundle\Event\FilterEvent; |
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use LAG\AdminBundle\Filter\Filter; |
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use LAG\AdminBundle\Utils\FormUtils; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\Form\Extension\Core\Type\FormType; |
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use Symfony\Component\Form\FormFactoryInterface; |
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use Symfony\Component\Form\FormInterface; |
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class FilterSubscriber implements EventSubscriberInterface |
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{ |
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/** |
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* @var FormFactoryInterface |
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*/ |
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private $formFactory; |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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Events::FILTER => 'onFilter', |
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]; |
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} |
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public function __construct(FormFactoryInterface $formFactory) |
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{ |
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$this->formFactory = $formFactory; |
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} |
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public function onFilter(FilterEvent $event): void |
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{ |
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// Retrieve the configured filters for the current admin and action |
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$admin = $event->getAdmin(); |
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$action = $admin->getAction(); |
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$configuration = $action->getConfiguration(); |
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$filters = $configuration->getParameter('filters'); |
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// Nothing to do if not filters are configured |
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if (0 === count($filters)) { |
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return; |
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} |
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// As filters should be applied before entity loading, the filter form is created and submitted at the same |
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// time, unlike the classic forms |
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$form = $this->createForm($filters); |
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$form->handleRequest($event->getRequest()); |
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if ($form->isSubmitted() && $form->isValid()) { |
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$data = $form->getData(); |
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foreach ($filters as $name => $options) { |
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// Nothing to do if the data is not submitted or if it is null |
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if (!key_exists($name, $data) || null === $data[$name]) { |
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continue; |
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} |
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// Do not submit false boolean values to improve user experience |
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if (is_bool($data[$name]) && false === $data[$name]) { |
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continue; |
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} |
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// Create a new filter with submitted and configured values |
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$filter = new Filter($options['name'], $data[$name], $options['operator']); |
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$event->addFilter($filter); |
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} |
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} |
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// Add the newly created form to the form collection to be displayed on the view |
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$event->addForm($form, 'filter'); |
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} |
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private function createForm(array $filters): FormInterface |
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{ |
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$form = $this |
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->formFactory |
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->createNamed('filter', FormType::class) |
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; |
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foreach ($filters as $name => $filter) { |
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$options = array_merge([ |
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// All filters are optional |
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'required' => false, |
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], $filter['options']); |
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$type = FormUtils::convertShortFormType($filter['type']); |
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$form->add($name, $type, $options); |
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} |
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return $form; |
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} |
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} |
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larriereguichet /
AdminBundle
