When the default manager returns a queryset with a deferred field, the dumpdata command fails to produce importable data.

[cecedille1]

When the default manager returns a queryset that has deferred fields, with Queryset.only or Queryset.deferred, the dumpdata command will print the model name as *the model*_derred_*thefields*. This model name make the import fail.

I made a github project to expose the bug: ​https://github.com/cecedille1/DjangoBug

I've a project with a table containing images as blobs. I deferred the image to avoid retrieving too many datas from the database.

[Simon Charette]

This should be only a matter of making the ​python serializer `get_dump_object` method deal with deferred models.

[cecedille1]

Patch

[cecedille1]

When running the serialization I resolve the original model from the meta.

[Tim Graham <timograham@…>]

In c6cce4de:

Fixed #25050 -- Allowed serialization of models with deferred fields.

[Tim Graham <timograham@…>]

In c0c7fa48:

Refs #25050 -- Corrected test assertion in serializers test.