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Fixed #33114 -- Defined default output_field of StringAgg. 

Thanks Simon Charette for the review.
This commit is contained in:
ali 2021-09-25 16:54:40 +03:30 committed by Mariusz Felisiak
parent 8036b53de6
commit ca58378390
4 changed files with 21 additions and 2 deletions
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5
django/contrib/postgres/aggregates/general.py
View File

@ -1,7 +1,9 @@
import warnings
from django.contrib.postgres.fields import ArrayField
from django.db.models import Aggregate, BooleanField, JSONField, Value
from django.db.models import (
Aggregate, BooleanField, JSONField, TextField, Value,
)
from django.utils.deprecation import RemovedInDjango50Warning
from .mixins import OrderableAggMixin
@ -88,6 +90,7 @@ class StringAgg(DeprecatedConvertValueMixin, OrderableAggMixin, Aggregate):
function = 'STRING_AGG'
template = '%(function)s(%(distinct)s%(expressions)s %(ordering)s)'
allow_distinct = True
output_field = TextField()
# RemovedInDjango50Warning
deprecation_value = ''

1
tests/postgres_tests/migrations/0002_create_test_models.py
View File

@ -202,6 +202,7 @@ class Migration(migrations.Migration):
('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
('boolean_field', models.BooleanField(null=True)),
('char_field', models.CharField(max_length=30, blank=True)),
('text_field', models.TextField(blank=True)),
('integer_field', models.IntegerField(null=True)),
('json_field', models.JSONField(null=True)),
],

1
tests/postgres_tests/models.py
View File

@ -160,6 +160,7 @@ class AggregateTestModel(PostgreSQLModel):
To test postgres-specific general aggregation functions
"""
char_field = models.CharField(max_length=30, blank=True)
text_field = models.TextField(blank=True)
integer_field = models.IntegerField(null=True)
boolean_field = models.BooleanField(null=True)
json_field = models.JSONField(null=True)

16
tests/postgres_tests/test_aggregates.py
View File

@ -25,22 +25,30 @@ class TestGeneralAggregate(PostgreSQLTestCase):
@classmethod
def setUpTestData(cls):
cls.aggs = AggregateTestModel.objects.bulk_create([
AggregateTestModel(boolean_field=True, char_field='Foo1', integer_field=0),
AggregateTestModel(
boolean_field=True,
char_field='Foo1',
text_field='Text1',
integer_field=0,
),
AggregateTestModel(
boolean_field=False,
char_field='Foo2',
text_field='Text2',
integer_field=1,
json_field={'lang': 'pl'},
),
AggregateTestModel(
boolean_field=False,
char_field='Foo4',
text_field='Text4',
integer_field=2,
json_field={'lang': 'en'},
),
AggregateTestModel(
boolean_field=True,
char_field='Foo3',
text_field='Text3',
integer_field=0,
json_field={'breed': 'collie'},
),
@ -299,6 +307,12 @@ class TestGeneralAggregate(PostgreSQLTestCase):
values = AggregateTestModel.objects.aggregate(stringagg=StringAgg('char_field', delimiter=';'))
self.assertEqual(values, {'stringagg': 'Foo1;Foo2;Foo4;Foo3'})
def test_string_agg_default_output_field(self):
values = AggregateTestModel.objects.aggregate(
stringagg=StringAgg('text_field', delimiter=';'),
)
self.assertEqual(values, {'stringagg': 'Text1;Text2;Text4;Text3'})
def test_string_agg_charfield_ordering(self):
ordering_test_cases = (
(F('char_field').desc(), 'Foo4;Foo3;Foo2;Foo1'),