#28731: Passing an empty Q() to a When inside a Case causes an OperationError
-------------------------------------+-------------------------------------
Reporter: Tom van | Owner: nobody
Bussel |
Type: Bug | Status: new
Component: Database | Version: 1.11
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
The following code causes an OperationError:
{{{
q = Q() # Dynamically constructed, possibly empty
x = TestModel.objects.annotate(test_name=When(q, then=Value(True)),
default=Value(False), output_field=BooleanField())).all()
print(x)
}}}
The code above results in a SQL query which contains {{{CASE WHEN
THEN}}}, with nothing between the WHEN and THEN.
--
Ticket URL: <https://code.djangoproject.com/ticket/28731>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/053.1e18a012840e69b94fa4b8b506f9cdb6%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
