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import datetime
from django.db import connection
from django.test import TestCase, skipUnlessDBFeature
from django.test.utils import CaptureQueriesContext
from .models import DumbCategory, NonIntegerPKReturningModel, ReturningModel
@skipUnlessDBFeature("can_return_columns_from_insert")
class ReturningValuesTests(TestCase):
def test_insert_returning(self):
with CaptureQueriesContext(connection) as captured_queries:
DumbCategory.objects.create()
self.assertIn(
"RETURNING %s.%s"
% (
connection.ops.quote_name(DumbCategory._meta.db_table),
connection.ops.quote_name(DumbCategory._meta.get_field("id").column),
),
captured_queries[-1]["sql"],
)
def test_insert_returning_non_integer(self):
obj = NonIntegerPKReturningModel.objects.create()
self.assertTrue(obj.created)
self.assertIsInstance(obj.created, datetime.datetime)
def test_insert_returning_multiple(self):
with CaptureQueriesContext(connection) as captured_queries:
obj = ReturningModel.objects.create()
table_name = connection.ops.quote_name(ReturningModel._meta.db_table)
self.assertIn(
"RETURNING %s.%s, %s.%s"
% (
table_name,
connection.ops.quote_name(ReturningModel._meta.get_field("id").column),
table_name,
connection.ops.quote_name(
ReturningModel._meta.get_field("created").column
),
),
captured_queries[-1]["sql"],
)
self.assertTrue(obj.pk)
self.assertIsInstance(obj.created, datetime.datetime)
@skipUnlessDBFeature("can_return_rows_from_bulk_insert")
def test_bulk_insert(self):
objs = [ReturningModel(), ReturningModel(pk=2**11), ReturningModel()]
ReturningModel.objects.bulk_create(objs)
for obj in objs:
with self.subTest(obj=obj):
self.assertTrue(obj.pk)
self.assertIsInstance(obj.created, datetime.datetime)
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