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pmelabpmelab
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Contextual language handling. (#550)
* Intermediate commit, not functional. * Don't abort context retrieval on falsy path elements. * Removed all implicit language contexts. * Contextual language negotiation. * Enforcing graphql language negotiation through config overrides. * Fixing language negotiator. * Fixed negotiation. * Ignore language cache contexts. * Added upgrade instructions for languages. * Docs fix. * Fix to also work without language module enabled. * Fixed wrong return, has to be yield. * Added core 8.5 tests. * Docs fix. * Moved contextual language to service. * Travis debug. * Removed travis debug. * Renamed test class according to file. * More tests and resulting fixes. * Simplified language context. * Explicit callable execution. * More fine grained tests. * Test negotiator initialization result. * Test cleanup. * Test disable negotiator fix. * Debugging ... * Debugging ... * Debugging ... * Debugging ... * Check negotiator instance. * Changed module initialization order. * Depending on language module. * Revert "Depending on language module." This reverts commit f8df099 * Revert "Changed module initialization order." This reverts commit bbaa77f * Proper service provider classname. * Properly injecting the language context. * Annotation style fixes. * Revert "Properly injecting the language context." This reverts commit c358b53 * Real setter injection. * Moved property to top. * Use language cache contexts to conditionally set the graphql language context. * Enabled multilingual features for all tests to catch potential context leaks. * Ignore language contexts when creating the cache key. * Reproducing leaking translation context. * Add language_content cache context to RouteEntity since the access handler emits it for some reason. * Fixed exception expectation.
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‎doc/upgrade/beta6.md‎

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## Schema changes
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These changes affect you if you are using the schema automatically generated by the `graphql_core` module.
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### Language handling
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Multilingual queries changed drastically. The endpoints language negotiation is ignored entirely, instead all language handling is left to the query and its arguments. A couple of fields accept a "language" argument, and whenever this argument is filled explicitly, it's value will be inherited to subsequent occurrences. The `route` field will set this context implicitly from the paths language prefix.
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```graphql
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query {
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route(path: "/node/1") {
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... on EntityCanonicalUrl {
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entity {
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# Will emit the default language.
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entityLabel
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}
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}
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}
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route(path: "/fr/node/1") {
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... on EntityCanonicalUrl {
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entity {
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# Will emit the french translation.
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entityLabel
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}
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}
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}
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}
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```
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### Url Interfaces
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The type structure of the `Url` object changed. While before there have been just the `InternalUrl` and `ExternalUrl` types, the `InternalUrl` has become an interface that can resolve to different Url types, depending on the underlying route. The `DefaultInternalUrl` has the fields for context resolving and other generic rout information. The `EntityCanonicalUrl` has access to the underlying entity.
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‎graphql.services.yml‎

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# Buffers.
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graphql.buffer.entity:
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class: Drupal\graphql\GraphQL\Buffers\EntityBuffer
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arguments: ['@entity_type.manager']
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class: Drupal\graphql\GraphQL\Buffers\EntityBuffer
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arguments: ['@entity_type.manager']
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graphql.buffer.subrequest:
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class: Drupal\graphql\GraphQL\Buffers\SubRequestBuffer
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arguments: ['@http_kernel', '@request_stack']
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class: Drupal\graphql\GraphQL\Buffers\SubRequestBuffer
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arguments: ['@http_kernel', '@request_stack']
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graphql.language_context:
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class: Drupal\graphql\GraphQLLanguageContext
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arguments: ['@language_manager']
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graphql.config_factory_override:
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class: Drupal\graphql\Config\GraphQLConfigOverrides
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arguments: ['@config.storage']
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tags:
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- { name: config.factory.override, priority: -253 }
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‎modules/graphql_core/src/Plugin/Deriver/Interfaces/EntityTypeDeriver.php‎

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$derivative['response_cache_contexts'][] = 'user.node_grants:view';
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}
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if ($type->isTranslatable()) {
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$derivative['response_cache_contexts'][] = 'languages:language_content';
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}
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$this->derivatives[$typeId] = $derivative;
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}
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‎modules/graphql_core/src/Plugin/Deriver/Types/EntityBundleDeriver.php‎

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$derivative['response_cache_contexts'][] = 'user.node_grants:view';
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}
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if ($type->isTranslatable()) {
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$derivative['response_cache_contexts'][] = 'languages:language_content';
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}
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$this->derivatives[$typeId . '-' . $bundle] = $derivative;
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}
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}

‎modules/graphql_core/src/Plugin/Deriver/Types/EntityTypeDeriver.php‎

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$derivative['response_cache_contexts'][] = 'user.node_grants:view';
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}
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if ($type->isTranslatable()) {
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$derivative['response_cache_contexts'][] = 'languages:language_content';
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}
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$this->derivatives[$typeId] = $derivative;
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}
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‎modules/graphql_core/src/Plugin/GraphQL/Fields/Entity/EntityById.php‎

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use Drupal\Core\Entity\EntityRepositoryInterface;
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use Drupal\Core\Entity\EntityTypeManagerInterface;
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use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
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use Drupal\Core\TypedData\TranslatableInterface;
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use Drupal\graphql\GraphQL\Buffers\EntityBuffer;
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use Drupal\graphql\GraphQL\Cache\CacheableValue;
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use Drupal\graphql\GraphQL\Execution\ResolveContext;
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* arguments = {
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* "id" = "String!"
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* },
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* contextual_arguments = {"language"},
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* deriver = "Drupal\graphql_core\Plugin\Deriver\Fields\EntityByIdDeriver"
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* )
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*/
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$access = $entity->access('view', NULL, TRUE);
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if ($access->isAllowed()) {
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if (isset($args['language']) && $args['language'] != $entity->language()->getId()) {
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$entity = $this->entityRepository->getTranslationFromContext($entity, $args['language']);
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if (isset($args['language']) && $args['language'] != $entity->language()->getId() && $entity instanceof TranslatableInterface) {
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$entity = $entity->getTranslation($args['language']);
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}
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yield $entity->addCacheableDependency($access);

‎modules/graphql_core/src/Plugin/GraphQL/Fields/Entity/EntityRevisionById.php‎

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use Drupal\Core\Entity\EntityRepositoryInterface;
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use Drupal\Core\Entity\EntityTypeManagerInterface;
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use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
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use Drupal\Core\TypedData\TranslatableInterface;
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use Drupal\graphql\GraphQL\Cache\CacheableValue;
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use Drupal\graphql\GraphQL\Execution\ResolveContext;
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use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase;
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* arguments = {
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* "id" = "String!"
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* },
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* contextual_arguments = {"language"},
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* deriver = "Drupal\graphql_core\Plugin\Deriver\Fields\EntityRevisionByIdDeriver"
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* )
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*/
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}
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/** @var \Drupal\Core\Access\AccessResultInterface $access */
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else if (($access = $entity->access('view', NULL, TRUE)) && $access->isAllowed()) {
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if (isset($args['language']) && $args['language'] != $entity->language()->getId()) {
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$entity = $this->entityRepository->getTranslationFromContext($entity, $args['language']);
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if ($entity instanceof TranslatableInterface && isset($args['language']) && $args['language'] != $entity->language()->getId()) {
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$entity = $entity->getTranslation($args['language']);
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}
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yield new CacheableValue($entity, [$access]);

‎modules/graphql_core/src/Plugin/GraphQL/Fields/Entity/EntityTranslation.php‎

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*/
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public function resolveValues($value, array $args, ResolveContext $context, ResolveInfo $info) {
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if ($value instanceof EntityInterface && $value instanceof TranslatableInterface && $value->isTranslatable()) {
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yield $this->entityRepository->getTranslationFromContext($value, $args['language']);
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yield $value->getTranslation($args['language']);
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}
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}
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‎modules/graphql_core/src/Plugin/GraphQL/Fields/Entity/EntityTranslations.php‎

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if ($value instanceof ContentEntityInterface && $value instanceof TranslatableInterface && $value->isTranslatable()) {
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$languages = $value->getTranslationLanguages();
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foreach ($languages as $language) {
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yield $this->entityRepository->getTranslationFromContext($value, $language->getId());
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yield $value->getTranslation($language->getId());
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}
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}
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}

‎modules/graphql_core/src/Plugin/GraphQL/Fields/EntityFieldBase.php‎

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namespace Drupal\graphql_core\Plugin\GraphQL\Fields;
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use Drupal\Component\Render\MarkupInterface;
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use Drupal\Core\Entity\ContentEntityInterface;
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use Drupal\Core\Entity\Entity;
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use Drupal\Core\Entity\EntityInterface;
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use Drupal\Core\Field\FieldItemInterface;
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use Drupal\graphql\GraphQL\Execution\ResolveContext;
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use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase;
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$result = $type->serialize($result);
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}
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if ($result instanceof ContentEntityInterface && $result->isTranslatable() && $language = $context->getContext('language', $info)) {
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$result = $result->getTranslation($language);
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}
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return $result;
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}
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}

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