#29272: Queryset using order_by(F()) fails to compile with values_list
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Reporter: bszfw | Owner: nobody
Type: Bug | Status: new
Component: Database | Version: 2.0
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 |
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Here is a simplified version of what I am trying to do:
{{{
from django.db import models
from django.db.models import IntegerField, F, Value
class Question(models.Model):
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')
def __str__(self):
return self.question_text
Question.objects.annotate(test=Value(1,
output_field=IntegerField())).order_by(F('test')).values_list('question_text')
}}}
It works without using {{{F}}}, or by adding the annotated value to
{{{values_list}}}.
But I need {{{F}}} to be able to write
{{{F('test').asc(nulls_last=True)}}}, and I cannot modify
{{{values_list}}} as it is added to the Queryset later in code which does
not know anything about the annotation.
--
Ticket URL: <https://code.djangoproject.com/ticket/29272>
Django <https://code.djangoproject.com/>
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