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Code Issues 25 Releases Wiki Activity

Fixed #34698 -- Made QuerySet.bulk_create() retrieve primary keys when updating conflicts.

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This commit is contained in:
Thomas Chaumeny 2023-07-07 13:08:17 +02:00 committed by Mariusz Felisiak
parent b7a17b0ea0
commit 89c7454dbd
4 changed files with 47 additions and 11 deletions
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7
django/db/models/query.py
View File

@ -1837,12 +1837,17 @@ class QuerySet(AltersData):
inserted_rows = []
bulk_return = connection.features.can_return_rows_from_bulk_insert
for item in [objs[i : i + batch_size] for i in range(0, len(objs), batch_size)]:
if bulk_return and on_conflict is None:
if bulk_return and (
on_conflict is None or on_conflict == OnConflict.UPDATE
):
inserted_rows.extend(
self._insert(
item,
fields=fields,
using=self.db,
on_conflict=on_conflict,
update_fields=update_fields,
unique_fields=unique_fields,
returning_fields=self.model._meta.db_returning_fields,
)
)

10
docs/ref/models/querysets.txt
View File

@ -2411,9 +2411,13 @@ On databases that support it (all except Oracle and SQLite < 3.24), setting the
SQLite, in addition to ``update_fields``, a list of ``unique_fields`` that may
be in conflict must be provided.
Enabling the ``ignore_conflicts`` or ``update_conflicts`` parameter disable
setting the primary key on each model instance (if the database normally
support it).
Enabling the ``ignore_conflicts`` parameter disables setting the primary key on
each model instance (if the database normally supports it).
.. versionchanged:: 5.0
In older versions, enabling the ``update_conflicts`` parameter prevented
setting the primary key on each model instance.
.. warning::

4
docs/releases/5.0.txt
View File

@ -357,6 +357,10 @@ Models
:meth:`.Model.save` now allows specifying a tuple of parent classes that must
be forced to be inserted.
* :meth:`.QuerySet.bulk_create` and :meth:`.QuerySet.abulk_create` methods now
set the primary key on each model instance when the ``update_conflicts``
parameter is enabled (if the database supports it).
Pagination
~~~~~~~~~~

37
tests/bulk_create/tests.py
View File

@ -582,12 +582,16 @@ class BulkCreateTests(TestCase):
TwoFields(f1=1, f2=1, name="c"),
TwoFields(f1=2, f2=2, name="d"),
]
TwoFields.objects.bulk_create(
results = TwoFields.objects.bulk_create(
conflicting_objects,
update_conflicts=True,
unique_fields=unique_fields,
update_fields=["name"],
)
self.assertEqual(len(results), len(conflicting_objects))
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(TwoFields.objects.count(), 2)
self.assertCountEqual(
TwoFields.objects.values("f1", "f2", "name"),
@ -619,7 +623,6 @@ class BulkCreateTests(TestCase):
TwoFields(f1=2, f2=2, name="b"),
]
)
self.assertEqual(TwoFields.objects.count(), 2)
obj1 = TwoFields.objects.get(f1=1)
obj2 = TwoFields.objects.get(f1=2)
@ -627,12 +630,16 @@ class BulkCreateTests(TestCase):
TwoFields(pk=obj1.pk, f1=3, f2=3, name="c"),
TwoFields(pk=obj2.pk, f1=4, f2=4, name="d"),
]
TwoFields.objects.bulk_create(
results = TwoFields.objects.bulk_create(
conflicting_objects,
update_conflicts=True,
unique_fields=["pk"],
update_fields=["name"],
)
self.assertEqual(len(results), len(conflicting_objects))
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(TwoFields.objects.count(), 2)
self.assertCountEqual(
TwoFields.objects.values("f1", "f2", "name"),
@ -680,12 +687,16 @@ class BulkCreateTests(TestCase):
description=("Japan is an island country in East Asia."),
),
]
Country.objects.bulk_create(
results = Country.objects.bulk_create(
new_data,
update_conflicts=True,
update_fields=["description"],
unique_fields=unique_fields,
)
self.assertEqual(len(results), len(new_data))
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(Country.objects.count(), 6)
self.assertCountEqual(
Country.objects.values("iso_two_letter", "description"),
@ -743,12 +754,16 @@ class BulkCreateTests(TestCase):
UpsertConflict(number=2, rank=2, name="Olivia"),
UpsertConflict(number=3, rank=1, name="Hannah"),
]
UpsertConflict.objects.bulk_create(
results = UpsertConflict.objects.bulk_create(
conflicting_objects,
update_conflicts=True,
update_fields=["name", "rank"],
unique_fields=unique_fields,
)
self.assertEqual(len(results), len(conflicting_objects))
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(UpsertConflict.objects.count(), 3)
self.assertCountEqual(
UpsertConflict.objects.values("number", "rank", "name"),
@ -759,12 +774,16 @@ class BulkCreateTests(TestCase):
],
)
UpsertConflict.objects.bulk_create(
results = UpsertConflict.objects.bulk_create(
conflicting_objects + [UpsertConflict(number=4, rank=4, name="Mark")],
update_conflicts=True,
update_fields=["name", "rank"],
unique_fields=unique_fields,
)
self.assertEqual(len(results), 4)
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(UpsertConflict.objects.count(), 4)
self.assertCountEqual(
UpsertConflict.objects.values("number", "rank", "name"),
@ -803,12 +822,16 @@ class BulkCreateTests(TestCase):
FieldsWithDbColumns(rank=1, name="c"),
FieldsWithDbColumns(rank=2, name="d"),
]
FieldsWithDbColumns.objects.bulk_create(
results = FieldsWithDbColumns.objects.bulk_create(
conflicting_objects,
update_conflicts=True,
unique_fields=["rank"],
update_fields=["name"],
)
self.assertEqual(len(results), len(conflicting_objects))
if connection.features.can_return_rows_from_bulk_insert:
for instance in results:
self.assertIsNotNone(instance.pk)
self.assertEqual(FieldsWithDbColumns.objects.count(), 2)
self.assertCountEqual(
FieldsWithDbColumns.objects.values("rank", "name"),