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I need to clean up file names on upload. Both for image fields, other file fields and IMCE file manager. The transliteration module is not yet ported to Drupal 8 and the community does not seem to agree on how to implement the core transliteration in Drupal 8.

Do I have to make a custom module for this, or is there a simpler way?

Right now, Drupal 8 seems to allow both spaces and special characters in filenames. I know about the module File (Field) Paths, but it will have to be set up for every file field on every content type. I don't think it will work with IMCE.

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    \Drupal::service('transliteration')->transliterate() is in core. If you just need to clean file names you can do that manually with simple loop. If you need to do it from now on automatically, you'll need a module. Simple hook_file_presave will do. – user21641 Sep 27 '17 at 12:17
  • Thanks. I am not sure I would be able to build a custom module for this myself. File (Field) Paths is an option, but the beta1 version is not production ready I think. It can not easily be uninstalled either. – eye-wonder Sep 27 '17 at 14:33
  • so why did you ask then? – user21641 Sep 27 '17 at 17:05
  • Well am wondering if there is another module/unofficial module, an override snippet or some other workaround. I hope it exists out there or that this is implemented as a core option soon. I might try to put together some module based on ALEXANDER BELOVs work (when I have a day off)(trial and error approach). I don't think every Drupal 8 developer are able to make custom modules them selves, but I like to try and learn when I have time. I will share if I succeed. – eye-wonder Sep 28 '17 at 8:11
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I applied a Drupal 8 core patch from this page. It seems to work fine. It adds a new option to /admin/config/media/file-system: File transliteration option Drupal 8

This option enables transliteration for all future uploads to all file fields. It also works for inline images when Enable image uploads is enabled (for the text-format). I don't know if the patch affects IMCE, since IMCE was not installed on my test installation.

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There is a module for that https://www.drupal.org/project/transliterate_filenames

Transliteration for all uploading files (includes fields and ckeditor inline upload)

How to use: just enable module as usual. All new file names will be transliterate to Latin characters.

  • This project is not covered by Drupal’s security advisory policy. – eye-wonder Oct 17 '18 at 13:13
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It seems that the module already mentioned is now covered by Drupals security advisory policy:

Transliterate filenames for uploads - https://www.drupal.org/project/transliterate_filenames

Stable releases for this project are covered by the security advisory policy.

8.x-1.3 Stable release covered by the Drupal Security Team released 1 July 2019

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Just use this module. This module is based on the blog post by Alexander Belov, but simplified for a less specific use case. https://github.com/jameswilson/filename_transliteration

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