#30557: Using Query Expression for ordering in multi-table inheritance scenario
triggers TypeError during test
-------------------------------------+-------------------------------------
Reporter: Jonny Fuller | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 2.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: ordering | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Description changed by Jonny Fuller:
Old description:
> Hi friends,
>
> During testing I discovered a strange bug when using a query expression
> for ordering during multi-table inheritance. You can find the full write
> up as well as reproducible test repository
> [here](https://github.com/JonnyWaffles/djangoordermetabug). The bug
> occurs because the field is an OrderBy object, not a string, during
> get_order_dir. The linked stacktrace should make the issue obvious, but
> what I don't understand is why it only fails during test db setup, not
> during repl or script use. I wish I could help more and come up with a
> real solution. Hopefully, this is enough for someone wiser to find the
> culprit.
New description:
Hi friends,
During testing I discovered a strange bug when using a query expression
for ordering during multi-table inheritance. You can find the full write
up as well as reproducible test repository
https://github.com/JonnyWaffles/djangoordermetabug. The bug occurs because
the field is an OrderBy object, not a string, during get_order_dir. The
linked stacktrace should make the issue obvious, but what I don't
understand is why it only fails during test db setup, not during repl or
script use. I wish I could help more and come up with a real solution.
Hopefully, this is enough for someone wiser to find the culprit.
--
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Ticket URL: <https://code.djangoproject.com/ticket/30557#comment:1>
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