Contrib.social

When translating a media file entity, the thumbnail of the original entity is deleted.

Open on Drupal.org →
Created on 26 March 2024, about 1 year ago

Problem/Motivation

When deleting a media item, the thumbnail of the original entity gets deleted.

Steps to reproduce

Install a standard Drupal site and enable the Media module
Enable the media, the media_thumbnails and the media_thumbnails_pdf module
Upload a media file, ex. a pdf file, see that a thumbnail will be generated
Translate the media file to an other language, see that the thumbnail will be generated
Visit the original media entity and see that this thumbnail is missing.

Proposed resolution

Prevent the deletion of the thumbnail in the file `media_thumbnails/src/Plugin/MediaThumbnailManager.php` and the deleteThumbnail(...) function.

```
// Don't delete thumbnail from the original media entity.
// If there is a translation, do not delete the thumbnail on the original media entity
// When a translation is deleted, do not delete the thumbnail on the original media entity
$routeName = \Drupal::request()->attributes->get('_route');
if (
($routeName !== 'entity.media.delete_form' && count($media->getTranslationLanguages()) > 1)
) {
return;
}
```

Remaining tasks

Can you verify my observations and test if the propose solution works in all cases.

🐛 Bug report
Status

Active

Version

1.0

Component

Code

Created by

🇩🇪Germany sreher

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Comments & Activities

  • Issue created by @sreher
  • Comment about 1 year ago →
    🇩🇪Germany sreher
  • Status changed to Postponed: needs info about 1 year ago
  • Comment about 1 year ago →
    🇩🇪Germany drubb Sindelfingen

    Hey Sven,

    just to clarify:

    The attached PDF in the translation is the same file as in the original? Or is it a translated file, with a different name?

  • Comment about 1 year ago →
    🇩🇪Germany sreher

    Hey Boris,
    it is the same file.

  • Comment about 1 year ago →
    🇩🇪Germany sreher

    I make the code more robust.

  • Comment about 1 year ago →
    🇩🇪Germany drubb Sindelfingen

    I'll need to take a closer look, but for now:

    We'll need to handle all ways of deletion, not just manual ones (using the form).
    When deleting any translation (or the origin), we need to load all existing translations and check
    if the file id of the thumbnail is used in any other translation - in this case, the
    file must not be deleted. This would be the case, if a media file (and thus its thumbnail)
    is reused in multiple translations.

  • Comment 2 months ago →
    🇧🇪Belgium gillesv Belgium

    We're experiencing a similar issue with Drupal v10.4.1, Media Thumbnails v2.0.0 and Media Thumbnails PDF v2.0.1

    We have a Media type called "Document" that can hold a PDF. When translating the media item into multiple languages, where each translation holds a different PDF, it often (but not always) happens that the thumbnail of the original language gets removed when saving a translation. If you then resave the original translation, it gets its thumbnail back, but the thumbnail of one of the translations gets deleted. If you then resave that translation, the thumbnail of the original item is gone again.

    I tried the patches provided here, but they don't seem to fix the issue.

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