Handle nested paragraphs in 'Page entity label' and 'Page entity link' Views fields

I second this patch, and implemented similar logic over on #3294846: Expose the url to the entity for Views

PLEASE PLEASE
add this small change to LinkcheckerLinkPageEntityLabel.php

even in the Drupal-10 Version
########################

I agree. The problem still exists in current version. The patch seems to be clear and small. Why not commit to stable version of the module?

+1 for commiting

This needs to be in a merge request, and it needs tests before being committed

Thanks everyone for working on it and testing ✌️🤓

I recognised today that the language of the parent node is not always the correct one. I have a site with DE + EN - where DE is the default language.
If the parent entity is also a paragraph, I will always get a link to the DE version of the top level node - even the link is on the EN version.

Could we use something like:

while ($linked_entity->getEntityTypeId() === 'paragraph' && $linked_entity->getParentEntity() !== NULL) {
      $parent = $linked_entity->getParentEntity();
      if ($parent instanceof TranslatableInterface && $linked_entity instanceof TranslatableInterface) {
        $parent = \Drupal::getContainer()->get('entity.repository')->getTranslationFromContext($parent, $linked_entity->language()->getId());
      }
      $linked_entity = $parent;
    }

    if ($linked_entity instanceof TranslatableInterface) {
      $langcode = $linkchecker_link->get('entity_langcode')->value;
      $linked_entity = \Drupal::getContainer()->get('entity.repository')->getTranslationFromContext($linked_entity, $langcode);
    }

    if (!empty($this->options['link_to_entity'])) {
      try {
        $url_options = [];
        if ($linked_entity instanceof TranslatableInterface) {
          $url_options['language'] = $linked_entity->language();
        }
        $this->options['alter']['url'] = $linked_entity->toUrl('canonical', $url_options);
        $this->options['alter']['make_link'] = TRUE;
      }
      catch (UndefinedLinkTemplateException $e) {
        $this->options['alter']['make_link'] = FALSE;

Please ignore my last comment. I figured out that not the translation is the problem - instead orphaned paragraphs are processed by linkchecker. I will try to find a fix for this!

I would use the same code from LinkcheckerLinkPageEntityLink

    while ($linked_entity instanceof ParagraphInterface && $linked_entity->getParentEntity() !== NULL) {
      $linked_entity = $linked_entity->getParentEntity();
    }

Created the merge request and added test coverage to verify the issue: https://git.drupalcode.org/issue/linkchecker-3135654/-/jobs/11146328

Patch changes a single-level if check into a while loop walking up nested paragraphs via instanceof ParagraphInterface.

Increased the scope of the ticket to also address the non-functional Page entity link views fields since it requires similar logic. Also updated the tests to include basic translation support as per #3506219: Create tests for showing the translated entity link.

The test-only changes should also be failing.

NB: you need to add schema.yml to test-only extra pattern, otherwise it will fail at the config schema level