Opened 5 years ago
Last modified 4 years ago
#31496 closed Bug
When using 'annotate', 'union', 'order_by('annotate_field')' and 'values' at the same time, error occurred — at Initial Version
| Reported by: | GardenLee | Owned by: | nobody |
|---|---|---|---|
| Component: | Database layer (models, ORM) | Version: | 3.0 |
| Severity: | Normal | Keywords: | |
| Cc: | Hasan Ramezani, David Wobrock | Triage Stage: | Ready for checkin |
| Has patch: | yes | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
When i tried query with 'annotate', 'union', 'order_by('annotate_field')' and 'values' at the same time, i got AttributeError('NoneType' object has no attribute 'split')
ex)
# 1. make 2 query_set
qs1 = Foo.objects.annotate(bar_val=Value(1, output_field=IntegerField())).filter(bar=False)
qs2 = Foo.objects.annotate(bar_val=Value(2, output_field=IntegerField())).filter(bar=True)
# 2. union
qs3 = q1.union(q2)
# 3. order_by annotate field
qs4 = q3.order_by('bar_val')
# 4. get values
q4.values('id')
In this case, I confirmed ('id', None) tuple passed by compiler.query.set_values() in django/db/models/sql/compiler.py
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