Re: dumpdata fails with crytpic error

On 1/06/2018 2:22 PM, Bernd Wechner wrote:
> Just tried this:
>
> |
> $ python3 manage.py dumpdata --format json --indent 4>data.json
> CommandError:Unableto serialize database:'NoneType'objecthas
> noattribute 'is_authenticated'
> |
>
> Anyone seen this before. How does one diagnose this given the vague
> nature of the message? I mean I presume it's complaining because
> there's an illegal value in a field in the database. But you think
> it's mention which field in which model on which record? Is there a
> quick way to find out?

I haven't seen it before but I would say it is your user model.
is_authenticated is an attribute of django.contrib.auth.user (actually
AbstractUser I think).

Don't know whether --verbosity=2 would give you more error info.

Here is mine which does work ...

python manage.py dumpdata --settings=proj.settings.dev --indent=2
--verbosity=0 --natural-primary --natural-foreign --all > dump.json

Note the settings arg which is required for manage.py to find the
correct database if you don't have DJANGO_SETTINGS_MODULE established in
your environment.

Mike

>
> Regards,
>
> Bernd.
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