Inline entity form support

This would certainly be helpful. Bump!

Working on a patch to IEF... in order to show widget, add

  elseif ($field['type'] == 'image' || $field['type'] == 'file') {
    $settings['entity_type'] = 'file';
    $settings['column'] = 'fid';
  }

to inline_entity_form_settings

Anyone have more detailed instructions? Not sure how or where to put the controller.

Related issue #2327369: File entity support

According to the IEF api all that needs to happen is a plugin be included in the file_entity module. Is there a reason that this wouldn't work?

For reference on how to make file-entity forms work inline, see the file_entity_inline module

This affects D8 too. I was able to get partial support by installing IEF and file_entity module. The only field missing is the actual file field oddly enough, all the other fields, alt, title, and etc. were there. However, upon saving it would claim it couldn't reference the entity for some reason or another. I didn't look into it further but it seems like it could work with fairly minor adjustments in D8.

As per #10, we need this in D8.
We can backport later.

Drupal\file_entity\Form\FileEditForm is currently used for editing files. We can reuse some of the logic.

Moving this to the IEF queue, since we also want support even if File Entity is not installed.
See new issue #2842451: File entity support.