[4.x] entity_reference parent's language

[bachy]

nested Entity loaded via entity reference field come in the default language, not in the current language, meaning the language of the parent.
I can't find a way to get the right language from entity_reference.

type Article implements NodeInterface {
  ... 
  linked_materials: [Materiau]
  ...
}
type Materiau implements NodeInterface {
  id: Int!
  uuid: String!
  title: String!
  ...
}

$registry->addFieldResolver('Article', 'linked_materials',
   $builder->produce('entity_reference')
   ->map('entity', $builder->fromParent())
   ->map('field', $builder->fromValue('field_linked_materials'))
);

where i am now with my try

$registry->addFieldResolver('Article', 'linked_materials',
      $builder->compose(
        $builder->callback(function($parent, $args){
          $linkedmaterials = $parent->get('field_linked_materials')->getValue();
          $nids = [];
          foreach ($linkedmaterials as $key => $value) {
            $nids[] = $value['target_id'];
          }
          $lang = $parent->language()->getId();
          // return [
          //   "ids" => $nids,
          //   "language" => $lang
          // ];
          return $nids;
        }),
        $builder->produce('entity_load_multiple')
          ->map('type', $builder->fromValue('node'))
          ->map('bundles', $builder->fromValue(['materiau']))
          ->map('ids', $builder->fromParent())
          ->map('language', $builder->fromValue('fr')) // hard coded language working, how can i transmit the language from the parent ?
   )
);

[bachy]

ok, i came up with this solution

$builder->compose(
        $builder->callback(function($parent, $args){
          $linkedmaterials = $parent->get('field_linked_materials')->getValue();
          $nids = [];
          foreach ($linkedmaterials as $key => $value) {
            $nids[] = $value['target_id'];
          }
          $lang = $parent->language()->getId();
          $test="test";
          return [
            "ids" => $nids,
            "language" => $lang
          ];
        }),
        $builder->produce('entity_load_multiple')
          ->map('type', $builder->fromValue('node'))
          ->map('bundles', $builder->fromValue(['materiau']))
          ->map('ids', $builder->callback(function($parent, $args){
            return $parent['ids'];
          }))
          ->map('language', $builder->callback(function($parent, $args){
            return $parent['language'];
          }))
      )

i also tried that, but entity_reference does not seems to understand the "language" parametre

$builder->produce('entity_reference')
        ->map('entity', $builder->fromParent())
        ->map('field', $builder->fromValue('field_linked_materials'))
        ->map('language', $builder->fromValue('fr')) // this is not working
        // ->map('language', $builder->produce('entity_language')
          // ->map('entity', $builder->fromParent())) // neither that

[kevineinarsson]

I noticed the same issue. Pull request #974 should sort out the issue but it has been open for almost a year now.

What is the status of this PR? Is it possible to pick up and work on remaining issues? I'd be happy to do so if it's possible.

[justclint]

Also running into this with entity reference on translated taxonomy. Also using version 4. @bachy example works but if a term is not translated it will error so this is what I got working for now to reference translated taxonomy terms or return the source term if not translated.

      $builder->compose(
        $builder->callback(function($parent, $args){
          $memberRatings = $parent->get('field_member_rating')->getValue();
          $tids = [];
          foreach ($memberRatings as $key => $value) {
            $tids[] = $value['target_id'];
          }

          $terms = \Drupal\taxonomy\Entity\Term::loadMultiple($tids);
          $language = $parent->language()->getId();
          $termList = [];
          foreach($terms as $term) {
            if($term->hasTranslation($language)){
              $translated_term = \Drupal::service('entity.repository')->getTranslationFromContext($term, $language);
              $termList[] = $translated_term;
            } else {
              $termList[] = $term;
            }
          }

          return $termList;
        }),
      )

Not sure if this is how chaining the data producers is intended to work but was trying something like this without success.

      $builder->compose(
        $builder->produce('entity_reference')
          ->map('entity', $builder->fromParent())
          ->map('field', $builder->fromValue('field_member_rating')), 
        $builder->produce('entity_translations')
          ->map('entity', $builder->fromParent())
          ->map('language', $builder->fromParent()),
      ),