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from datetime import date
from . import PostgreSQLTestCase
from .models import (
HStoreModel,
IntegerArrayModel,
NestedIntegerArrayModel,
NullableIntegerArrayModel,
OtherTypesArrayModel,
RangesModel,
)
try:
from django.db.backends.postgresql.psycopg_any import DateRange, NumericRange
except ImportError:
pass # psycopg isn't installed.
class BulkSaveTests(PostgreSQLTestCase):
def test_bulk_update(self):
test_data = [
(IntegerArrayModel, "field", [], [1, 2, 3]),
(NullableIntegerArrayModel, "field", [1, 2, 3], None),
(NestedIntegerArrayModel, "field", [], [[1, 2, 3]]),
(HStoreModel, "field", {}, {1: 2}),
(RangesModel, "ints", None, NumericRange(lower=1, upper=10)),
(
RangesModel,
"dates",
None,
DateRange(lower=date.today(), upper=date.today()),
),
(OtherTypesArrayModel, "ips", [], ["1.2.3.4"]),
(OtherTypesArrayModel, "json", [], [{"a": "b"}]),
]
for Model, field, initial, new in test_data:
with self.subTest(model=Model, field=field):
instances = Model.objects.bulk_create(
Model(**{field: initial}) for _ in range(20)
)
for instance in instances:
setattr(instance, field, new)
Model.objects.bulk_update(instances, [field])
self.assertSequenceEqual(
Model.objects.filter(**{field: new}), instances
)
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