Redirect handling (#666)

Author: pmelab

modules/graphql_core/src/Plugin/GraphQL/Fields/Routing/RedirectUrl/Code.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Drupal\graphql_core\Plugin\GraphQL\Fields\Routing\RedirectUrl;
+
+use Drupal\graphql\GraphQL\Execution\ResolveContext;
+use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase;
+use Drupal\redirect\Entity\Redirect;
+use GraphQL\Type\Definition\ResolveInfo;
+
+/**
+ * @GraphQLField(
+ *   id = "redirect_url_code",
+ *   secure = true,
+ *   name = "code",
+ *   description = @Translation("The redirect code."),
+ *   type = "Int",
+ *   provider="redirect",
+ *   parents = {"RedirectUrl"}
+ * )
+ */
+class Code extends FieldPluginBase {
+  /**
+   * {@inheritdoc}
+   */
+  public function resolveValues($value, array $args, ResolveContext $context, ResolveInfo $info) {
+    if ($value instanceof Redirect) {
+      yield $value->getStatusCode();
+    }
+  }
+
+}

modules/graphql_core/src/Plugin/GraphQL/Fields/Routing/RedirectUrl/Target.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Drupal\graphql_core\Plugin\GraphQL\Fields\Routing\RedirectUrl;
+
+use Drupal\graphql\GraphQL\Execution\ResolveContext;
+use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase;
+use Drupal\redirect\Entity\Redirect;
+use GraphQL\Type\Definition\ResolveInfo;
+
+/**
+ * @GraphQLField(
+ *   id = "redirect_url_target",
+ *   secure = true,
+ *   name = "target",
+ *   description = @Translation("The redirect target."),
+ *   type = "Url",
+ *   provider="redirect",
+ *   parents = {"RedirectUrl"}
+ * )
+ */
+class Target extends FieldPluginBase {
+  /**
+   * {@inheritdoc}
+   */
+  public function resolveValues($value, array $args, ResolveContext $context, ResolveInfo $info) {
+    if ($value instanceof Redirect) {
+      yield $value->getRedirectUrl();
+    }
+  }
+
+}

modules/graphql_core/src/Plugin/GraphQL/Fields/Routing/Route.php

@@ -9,6 +9,8 @@
 use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase;
 use Drupal\language\LanguageNegotiator;
 use Drupal\Core\Language\LanguageManagerInterface;
+use Drupal\redirect\Entity\Redirect;
+use Drupal\Tests\views_ui\Functional\ReportFieldsTest;
 use GraphQL\Type\Definition\ResolveInfo;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
@@ -126,10 +128,28 @@ protected function isLanguageAwareField() {
     return TRUE;
   }
 
+  /**
+   * Get the redirect repository service.
+   *
+   * @return \Drupal\redirect\RedirectRepository
+   */
+  protected function getRedirectRepository() {
+    return \Drupal::service('redirect.repository');
+  }
+
   /**
    * {@inheritdoc}
    */
   public function resolveValues($value, array $args, ResolveContext $context, ResolveInfo $info) {
+    if (\Drupal::moduleHandler()->moduleExists('redirect')) {
+      $redirectRepository = $this->getRedirectRepository();
+      $currentLanguage = $this->languageManager->getCurrentLanguage()->getId();
+      if ($redirect = $redirectRepository->findMatchingRedirect($args['path'], [], $currentLanguage)) {
+        yield $redirect;
+        return;
+      }
+    }
+
     if (($url = $this->pathValidator->getUrlIfValidWithoutAccessCheck($args['path'])) && $url->access()) {
       yield $url;
     }

modules/graphql_core/src/Plugin/GraphQL/Types/Routing/RedirectUrl.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Drupal\graphql_core\Plugin\GraphQL\Types\Routing;
+
+use Drupal\Core\Url;
+use Drupal\graphql\GraphQL\Execution\ResolveContext;
+use Drupal\graphql\Plugin\GraphQL\Types\TypePluginBase;
+use Drupal\redirect\Entity\Redirect;
+use GraphQL\Type\Definition\ResolveInfo;
+
+/**
+ * GraphQL type for redirects.
+ *
+ * @GraphQLType(
+ *   id = "redirect_url",
+ *   name = "RedirectUrl",
+ *   interfaces={"Url"},
+ *   provider="redirect",
+ * )
+ */
+class RedirectUrl extends TypePluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function applies($object, ResolveContext $context, ResolveInfo $info) {
+    return $object instanceof Redirect;
+  }
+
+}