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- <?php
- namespace Drupal\Core\Routing\Enhancer;
- use Drupal\Core\Routing\EnhancerInterface;
- use Symfony\Cmf\Component\Routing\RouteObjectInterface;
- use Symfony\Component\HttpFoundation\Request;
- use Symfony\Component\Routing\Route;
- /**
- * Adds _entity_revision to the request attributes, if possible.
- */
- class EntityRevisionRouteEnhancer implements EnhancerInterface {
- /**
- * Returns whether the enhancer runs on the current route.
- *
- * @param \Symfony\Component\Routing\Route $route
- * The current route.
- *
- * @return bool
- */
- protected function applies(Route $route) {
- // Check whether there is any entity revision parameter.
- $parameters = $route->getOption('parameters') ?: [];
- foreach ($parameters as $info) {
- if (isset($info['type']) && strpos($info['type'], 'entity_revision:') === 0) {
- return TRUE;
- }
- }
- return FALSE;
- }
- /**
- * {@inheritdoc}
- */
- public function enhance(array $defaults, Request $request) {
- /** @var \Symfony\Component\Routing\Route $route */
- $route = $defaults[RouteObjectInterface::ROUTE_OBJECT];
- if (!$this->applies($route)) {
- return $defaults;
- }
- $options = $route->getOptions();
- if (isset($options['parameters'])) {
- foreach ($options['parameters'] as $name => $details) {
- if (!empty($details['type']) && strpos($details['type'], 'entity_revision:') !== FALSE) {
- $defaults['_entity_revision'] = $defaults[$name];
- break;
- }
- }
- }
- return $defaults;
- }
- }
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