mirror of
https://github.com/django/django.git
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843 lines
32 KiB
Python
843 lines
32 KiB
Python
from math import ceil
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from operator import attrgetter
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from django.core.exceptions import FieldDoesNotExist
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from django.db import (
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IntegrityError,
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NotSupportedError,
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OperationalError,
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ProgrammingError,
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connection,
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)
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from django.db.models import FileField, Value
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from django.db.models.functions import Lower, Now
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from django.test import (
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TestCase,
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override_settings,
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skipIfDBFeature,
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skipUnlessDBFeature,
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)
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from .models import (
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BigAutoFieldModel,
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Country,
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FieldsWithDbColumns,
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NoFields,
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NullableFields,
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Pizzeria,
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ProxyCountry,
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ProxyMultiCountry,
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ProxyMultiProxyCountry,
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ProxyProxyCountry,
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RelatedModel,
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Restaurant,
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SmallAutoFieldModel,
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State,
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TwoFields,
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UpsertConflict,
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)
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class BulkCreateTests(TestCase):
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def setUp(self):
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self.data = [
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Country(name="United States of America", iso_two_letter="US"),
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Country(name="The Netherlands", iso_two_letter="NL"),
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Country(name="Germany", iso_two_letter="DE"),
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Country(name="Czech Republic", iso_two_letter="CZ"),
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]
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def test_simple(self):
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created = Country.objects.bulk_create(self.data)
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self.assertEqual(created, self.data)
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self.assertQuerySetEqual(
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Country.objects.order_by("-name"),
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[
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"United States of America",
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"The Netherlands",
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"Germany",
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"Czech Republic",
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],
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attrgetter("name"),
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)
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created = Country.objects.bulk_create([])
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self.assertEqual(created, [])
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self.assertEqual(Country.objects.count(), 4)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_efficiency(self):
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with self.assertNumQueries(1):
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Country.objects.bulk_create(self.data)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_long_non_ascii_text(self):
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"""
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Inserting non-ASCII values with a length in the range 2001 to 4000
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characters, i.e. 4002 to 8000 bytes, must be set as a CLOB on Oracle
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(#22144).
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"""
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Country.objects.bulk_create([Country(description="Ж" * 3000)])
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self.assertEqual(Country.objects.count(), 1)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_long_and_short_text(self):
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Country.objects.bulk_create(
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[
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Country(description="a" * 4001, iso_two_letter="A"),
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Country(description="a", iso_two_letter="B"),
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Country(description="Ж" * 2001, iso_two_letter="C"),
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Country(description="Ж", iso_two_letter="D"),
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]
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)
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self.assertEqual(Country.objects.count(), 4)
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def test_multi_table_inheritance_unsupported(self):
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expected_message = "Can't bulk create a multi-table inherited model"
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with self.assertRaisesMessage(ValueError, expected_message):
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Pizzeria.objects.bulk_create(
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[
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Pizzeria(name="The Art of Pizza"),
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]
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)
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with self.assertRaisesMessage(ValueError, expected_message):
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ProxyMultiCountry.objects.bulk_create(
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[
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ProxyMultiCountry(name="Fillory", iso_two_letter="FL"),
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]
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)
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with self.assertRaisesMessage(ValueError, expected_message):
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ProxyMultiProxyCountry.objects.bulk_create(
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[
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ProxyMultiProxyCountry(name="Fillory", iso_two_letter="FL"),
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]
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)
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def test_proxy_inheritance_supported(self):
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ProxyCountry.objects.bulk_create(
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[
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ProxyCountry(name="Qwghlm", iso_two_letter="QW"),
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Country(name="Tortall", iso_two_letter="TA"),
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]
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)
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self.assertQuerySetEqual(
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ProxyCountry.objects.all(),
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{"Qwghlm", "Tortall"},
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attrgetter("name"),
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ordered=False,
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)
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ProxyProxyCountry.objects.bulk_create(
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[
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ProxyProxyCountry(name="Netherlands", iso_two_letter="NT"),
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]
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)
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self.assertQuerySetEqual(
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ProxyProxyCountry.objects.all(),
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{
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"Qwghlm",
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"Tortall",
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"Netherlands",
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},
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attrgetter("name"),
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ordered=False,
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)
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def test_non_auto_increment_pk(self):
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State.objects.bulk_create(
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[State(two_letter_code=s) for s in ["IL", "NY", "CA", "ME"]]
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)
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self.assertQuerySetEqual(
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State.objects.order_by("two_letter_code"),
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[
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"CA",
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"IL",
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"ME",
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"NY",
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],
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attrgetter("two_letter_code"),
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)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_non_auto_increment_pk_efficiency(self):
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with self.assertNumQueries(1):
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State.objects.bulk_create(
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[State(two_letter_code=s) for s in ["IL", "NY", "CA", "ME"]]
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)
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self.assertQuerySetEqual(
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State.objects.order_by("two_letter_code"),
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[
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"CA",
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"IL",
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"ME",
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"NY",
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],
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attrgetter("two_letter_code"),
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)
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@skipIfDBFeature("allows_auto_pk_0")
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def test_zero_as_autoval(self):
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"""
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Zero as id for AutoField should raise exception in MySQL, because MySQL
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does not allow zero for automatic primary key if the
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NO_AUTO_VALUE_ON_ZERO SQL mode is not enabled.
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"""
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valid_country = Country(name="Germany", iso_two_letter="DE")
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invalid_country = Country(id=0, name="Poland", iso_two_letter="PL")
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msg = "The database backend does not accept 0 as a value for AutoField."
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with self.assertRaisesMessage(ValueError, msg):
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Country.objects.bulk_create([valid_country, invalid_country])
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def test_batch_same_vals(self):
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# SQLite had a problem where all the same-valued models were
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# collapsed to one insert.
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Restaurant.objects.bulk_create([Restaurant(name="foo") for i in range(0, 2)])
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self.assertEqual(Restaurant.objects.count(), 2)
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def test_large_batch(self):
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TwoFields.objects.bulk_create(
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[TwoFields(f1=i, f2=i + 1) for i in range(0, 1001)]
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)
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self.assertEqual(TwoFields.objects.count(), 1001)
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self.assertEqual(
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TwoFields.objects.filter(f1__gte=450, f1__lte=550).count(), 101
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)
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self.assertEqual(TwoFields.objects.filter(f2__gte=901).count(), 101)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_large_single_field_batch(self):
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# SQLite had a problem with more than 500 UNIONed selects in single
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# query.
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Restaurant.objects.bulk_create([Restaurant() for i in range(0, 501)])
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@skipUnlessDBFeature("has_bulk_insert")
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def test_large_batch_efficiency(self):
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with override_settings(DEBUG=True):
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connection.queries_log.clear()
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TwoFields.objects.bulk_create(
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[TwoFields(f1=i, f2=i + 1) for i in range(0, 1001)]
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)
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self.assertLess(len(connection.queries), 10)
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def test_large_batch_mixed(self):
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"""
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Test inserting a large batch with objects having primary key set
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mixed together with objects without PK set.
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"""
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TwoFields.objects.bulk_create(
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[
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TwoFields(id=i if i % 2 == 0 else None, f1=i, f2=i + 1)
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for i in range(100000, 101000)
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]
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)
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self.assertEqual(TwoFields.objects.count(), 1000)
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# We can't assume much about the ID's created, except that the above
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# created IDs must exist.
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id_range = range(100000, 101000, 2)
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self.assertEqual(TwoFields.objects.filter(id__in=id_range).count(), 500)
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self.assertEqual(TwoFields.objects.exclude(id__in=id_range).count(), 500)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_large_batch_mixed_efficiency(self):
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"""
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Test inserting a large batch with objects having primary key set
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mixed together with objects without PK set.
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"""
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with override_settings(DEBUG=True):
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connection.queries_log.clear()
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TwoFields.objects.bulk_create(
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[
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TwoFields(id=i if i % 2 == 0 else None, f1=i, f2=i + 1)
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for i in range(100000, 101000)
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]
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)
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self.assertLess(len(connection.queries), 10)
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def test_explicit_batch_size(self):
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objs = [TwoFields(f1=i, f2=i) for i in range(0, 4)]
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num_objs = len(objs)
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TwoFields.objects.bulk_create(objs, batch_size=1)
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self.assertEqual(TwoFields.objects.count(), num_objs)
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TwoFields.objects.all().delete()
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TwoFields.objects.bulk_create(objs, batch_size=2)
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self.assertEqual(TwoFields.objects.count(), num_objs)
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TwoFields.objects.all().delete()
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TwoFields.objects.bulk_create(objs, batch_size=3)
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self.assertEqual(TwoFields.objects.count(), num_objs)
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TwoFields.objects.all().delete()
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TwoFields.objects.bulk_create(objs, batch_size=num_objs)
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self.assertEqual(TwoFields.objects.count(), num_objs)
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def test_empty_model(self):
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NoFields.objects.bulk_create([NoFields() for i in range(2)])
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self.assertEqual(NoFields.objects.count(), 2)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_explicit_batch_size_efficiency(self):
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objs = [TwoFields(f1=i, f2=i) for i in range(0, 100)]
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with self.assertNumQueries(2):
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TwoFields.objects.bulk_create(objs, 50)
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TwoFields.objects.all().delete()
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with self.assertNumQueries(1):
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TwoFields.objects.bulk_create(objs, len(objs))
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@skipUnlessDBFeature("has_bulk_insert")
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def test_explicit_batch_size_respects_max_batch_size(self):
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objs = [Country(name=f"Country {i}") for i in range(1000)]
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fields = ["name", "iso_two_letter", "description"]
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max_batch_size = max(connection.ops.bulk_batch_size(fields, objs), 1)
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with self.assertNumQueries(ceil(len(objs) / max_batch_size)):
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Country.objects.bulk_create(objs, batch_size=max_batch_size + 1)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_bulk_insert_expressions(self):
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Restaurant.objects.bulk_create(
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[
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Restaurant(name="Sam's Shake Shack"),
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Restaurant(name=Lower(Value("Betty's Beetroot Bar"))),
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]
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)
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bbb = Restaurant.objects.filter(name="betty's beetroot bar")
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self.assertEqual(bbb.count(), 1)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_bulk_insert_now(self):
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NullableFields.objects.bulk_create(
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[
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NullableFields(datetime_field=Now()),
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NullableFields(datetime_field=Now()),
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]
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)
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self.assertEqual(
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NullableFields.objects.filter(datetime_field__isnull=False).count(),
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2,
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)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_bulk_insert_nullable_fields(self):
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fk_to_auto_fields = {
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"auto_field": NoFields.objects.create(),
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"small_auto_field": SmallAutoFieldModel.objects.create(),
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"big_auto_field": BigAutoFieldModel.objects.create(),
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}
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# NULL can be mixed with other values in nullable fields
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nullable_fields = [
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field for field in NullableFields._meta.get_fields() if field.name != "id"
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]
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NullableFields.objects.bulk_create(
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[
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NullableFields(**{**fk_to_auto_fields, field.name: None})
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for field in nullable_fields
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]
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)
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self.assertEqual(NullableFields.objects.count(), len(nullable_fields))
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for field in nullable_fields:
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with self.subTest(field=field):
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field_value = "" if isinstance(field, FileField) else None
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self.assertEqual(
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NullableFields.objects.filter(**{field.name: field_value}).count(),
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1,
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)
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@skipUnlessDBFeature("can_return_rows_from_bulk_insert")
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def test_set_pk_and_insert_single_item(self):
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with self.assertNumQueries(1):
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countries = Country.objects.bulk_create([self.data[0]])
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self.assertEqual(len(countries), 1)
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self.assertEqual(Country.objects.get(pk=countries[0].pk), countries[0])
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@skipUnlessDBFeature("can_return_rows_from_bulk_insert")
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def test_set_pk_and_query_efficiency(self):
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with self.assertNumQueries(1):
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countries = Country.objects.bulk_create(self.data)
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self.assertEqual(len(countries), 4)
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self.assertEqual(Country.objects.get(pk=countries[0].pk), countries[0])
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self.assertEqual(Country.objects.get(pk=countries[1].pk), countries[1])
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self.assertEqual(Country.objects.get(pk=countries[2].pk), countries[2])
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self.assertEqual(Country.objects.get(pk=countries[3].pk), countries[3])
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@skipUnlessDBFeature("can_return_rows_from_bulk_insert")
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def test_set_state(self):
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country_nl = Country(name="Netherlands", iso_two_letter="NL")
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country_be = Country(name="Belgium", iso_two_letter="BE")
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Country.objects.bulk_create([country_nl])
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country_be.save()
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# Objects save via bulk_create() and save() should have equal state.
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self.assertEqual(country_nl._state.adding, country_be._state.adding)
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self.assertEqual(country_nl._state.db, country_be._state.db)
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def test_set_state_with_pk_specified(self):
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state_ca = State(two_letter_code="CA")
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state_ny = State(two_letter_code="NY")
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State.objects.bulk_create([state_ca])
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state_ny.save()
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# Objects save via bulk_create() and save() should have equal state.
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self.assertEqual(state_ca._state.adding, state_ny._state.adding)
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self.assertEqual(state_ca._state.db, state_ny._state.db)
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@skipIfDBFeature("supports_ignore_conflicts")
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def test_ignore_conflicts_value_error(self):
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message = "This database backend does not support ignoring conflicts."
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with self.assertRaisesMessage(NotSupportedError, message):
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TwoFields.objects.bulk_create(self.data, ignore_conflicts=True)
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@skipUnlessDBFeature("supports_ignore_conflicts")
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def test_ignore_conflicts_ignore(self):
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data = [
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TwoFields(f1=1, f2=1),
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TwoFields(f1=2, f2=2),
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TwoFields(f1=3, f2=3),
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]
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TwoFields.objects.bulk_create(data)
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self.assertEqual(TwoFields.objects.count(), 3)
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# With ignore_conflicts=True, conflicts are ignored.
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conflicting_objects = [
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TwoFields(f1=2, f2=2),
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TwoFields(f1=3, f2=3),
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]
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TwoFields.objects.bulk_create([conflicting_objects[0]], ignore_conflicts=True)
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TwoFields.objects.bulk_create(conflicting_objects, ignore_conflicts=True)
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self.assertEqual(TwoFields.objects.count(), 3)
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self.assertIsNone(conflicting_objects[0].pk)
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self.assertIsNone(conflicting_objects[1].pk)
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# New objects are created and conflicts are ignored.
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new_object = TwoFields(f1=4, f2=4)
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TwoFields.objects.bulk_create(
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conflicting_objects + [new_object], ignore_conflicts=True
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)
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self.assertEqual(TwoFields.objects.count(), 4)
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self.assertIsNone(new_object.pk)
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# Without ignore_conflicts=True, there's a problem.
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with self.assertRaises(IntegrityError):
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TwoFields.objects.bulk_create(conflicting_objects)
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def test_nullable_fk_after_parent(self):
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parent = NoFields()
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child = NullableFields(auto_field=parent, integer_field=88)
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parent.save()
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NullableFields.objects.bulk_create([child])
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child = NullableFields.objects.get(integer_field=88)
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self.assertEqual(child.auto_field, parent)
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@skipUnlessDBFeature("can_return_rows_from_bulk_insert")
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def test_nullable_fk_after_parent_bulk_create(self):
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parent = NoFields()
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child = NullableFields(auto_field=parent, integer_field=88)
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NoFields.objects.bulk_create([parent])
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NullableFields.objects.bulk_create([child])
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child = NullableFields.objects.get(integer_field=88)
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self.assertEqual(child.auto_field, parent)
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def test_unsaved_parent(self):
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parent = NoFields()
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msg = (
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"bulk_create() prohibited to prevent data loss due to unsaved "
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"related object 'auto_field'."
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)
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with self.assertRaisesMessage(ValueError, msg):
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NullableFields.objects.bulk_create([NullableFields(auto_field=parent)])
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def test_invalid_batch_size_exception(self):
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msg = "Batch size must be a positive integer."
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with self.assertRaisesMessage(ValueError, msg):
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Country.objects.bulk_create([], batch_size=-1)
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@skipIfDBFeature("supports_update_conflicts")
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def test_update_conflicts_unsupported(self):
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msg = "This database backend does not support updating conflicts."
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with self.assertRaisesMessage(NotSupportedError, msg):
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Country.objects.bulk_create(self.data, update_conflicts=True)
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@skipUnlessDBFeature("supports_ignore_conflicts", "supports_update_conflicts")
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def test_ignore_update_conflicts_exclusive(self):
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msg = "ignore_conflicts and update_conflicts are mutually exclusive"
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with self.assertRaisesMessage(ValueError, msg):
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Country.objects.bulk_create(
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self.data,
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ignore_conflicts=True,
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update_conflicts=True,
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)
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@skipUnlessDBFeature("supports_update_conflicts")
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def test_update_conflicts_no_update_fields(self):
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msg = (
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"Fields that will be updated when a row insertion fails on "
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"conflicts must be provided."
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)
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with self.assertRaisesMessage(ValueError, msg):
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Country.objects.bulk_create(self.data, update_conflicts=True)
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|
@skipUnlessDBFeature("supports_update_conflicts")
|
|
@skipIfDBFeature("supports_update_conflicts_with_target")
|
|
def test_update_conflicts_unique_field_unsupported(self):
|
|
msg = (
|
|
"This database backend does not support updating conflicts with "
|
|
"specifying unique fields that can trigger the upsert."
|
|
)
|
|
with self.assertRaisesMessage(NotSupportedError, msg):
|
|
TwoFields.objects.bulk_create(
|
|
[TwoFields(f1=1, f2=1), TwoFields(f1=2, f2=2)],
|
|
update_conflicts=True,
|
|
update_fields=["f2"],
|
|
unique_fields=["f1"],
|
|
)
|
|
|
|
@skipUnlessDBFeature("supports_update_conflicts")
|
|
def test_update_conflicts_nonexistent_update_fields(self):
|
|
unique_fields = None
|
|
if connection.features.supports_update_conflicts_with_target:
|
|
unique_fields = ["f1"]
|
|
msg = "TwoFields has no field named 'nonexistent'"
|
|
with self.assertRaisesMessage(FieldDoesNotExist, msg):
|
|
TwoFields.objects.bulk_create(
|
|
[TwoFields(f1=1, f2=1), TwoFields(f1=2, f2=2)],
|
|
update_conflicts=True,
|
|
update_fields=["nonexistent"],
|
|
unique_fields=unique_fields,
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts",
|
|
"supports_update_conflicts_with_target",
|
|
)
|
|
def test_update_conflicts_unique_fields_required(self):
|
|
msg = "Unique fields that can trigger the upsert must be provided."
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
TwoFields.objects.bulk_create(
|
|
[TwoFields(f1=1, f2=1), TwoFields(f1=2, f2=2)],
|
|
update_conflicts=True,
|
|
update_fields=["f1"],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts",
|
|
"supports_update_conflicts_with_target",
|
|
)
|
|
def test_update_conflicts_invalid_update_fields(self):
|
|
msg = "bulk_create() can only be used with concrete fields in update_fields."
|
|
# Reverse one-to-one relationship.
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
Country.objects.bulk_create(
|
|
self.data,
|
|
update_conflicts=True,
|
|
update_fields=["relatedmodel"],
|
|
unique_fields=["pk"],
|
|
)
|
|
# Many-to-many relationship.
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
RelatedModel.objects.bulk_create(
|
|
[RelatedModel(country=self.data[0])],
|
|
update_conflicts=True,
|
|
update_fields=["big_auto_fields"],
|
|
unique_fields=["country"],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts",
|
|
"supports_update_conflicts_with_target",
|
|
)
|
|
def test_update_conflicts_pk_in_update_fields(self):
|
|
msg = "bulk_create() cannot be used with primary keys in update_fields."
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
BigAutoFieldModel.objects.bulk_create(
|
|
[BigAutoFieldModel()],
|
|
update_conflicts=True,
|
|
update_fields=["id"],
|
|
unique_fields=["id"],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts",
|
|
"supports_update_conflicts_with_target",
|
|
)
|
|
def test_update_conflicts_invalid_unique_fields(self):
|
|
msg = "bulk_create() can only be used with concrete fields in unique_fields."
|
|
# Reverse one-to-one relationship.
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
Country.objects.bulk_create(
|
|
self.data,
|
|
update_conflicts=True,
|
|
update_fields=["name"],
|
|
unique_fields=["relatedmodel"],
|
|
)
|
|
# Many-to-many relationship.
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
RelatedModel.objects.bulk_create(
|
|
[RelatedModel(country=self.data[0])],
|
|
update_conflicts=True,
|
|
update_fields=["name"],
|
|
unique_fields=["big_auto_fields"],
|
|
)
|
|
|
|
def _test_update_conflicts_two_fields(self, unique_fields):
|
|
TwoFields.objects.bulk_create(
|
|
[
|
|
TwoFields(f1=1, f2=1, name="a"),
|
|
TwoFields(f1=2, f2=2, name="b"),
|
|
]
|
|
)
|
|
self.assertEqual(TwoFields.objects.count(), 2)
|
|
|
|
conflicting_objects = [
|
|
TwoFields(f1=1, f2=1, name="c"),
|
|
TwoFields(f1=2, f2=2, name="d"),
|
|
]
|
|
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"),
|
|
[
|
|
{"f1": 1, "f2": 1, "name": "c"},
|
|
{"f1": 2, "f2": 2, "name": "d"},
|
|
],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_two_fields_unique_fields_first(self):
|
|
self._test_update_conflicts_two_fields(["f1"])
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_two_fields_unique_fields_second(self):
|
|
self._test_update_conflicts_two_fields(["f2"])
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_unique_fields_pk(self):
|
|
TwoFields.objects.bulk_create(
|
|
[
|
|
TwoFields(f1=1, f2=1, name="a"),
|
|
TwoFields(f1=2, f2=2, name="b"),
|
|
]
|
|
)
|
|
|
|
obj1 = TwoFields.objects.get(f1=1)
|
|
obj2 = TwoFields.objects.get(f1=2)
|
|
conflicting_objects = [
|
|
TwoFields(pk=obj1.pk, f1=3, f2=3, name="c"),
|
|
TwoFields(pk=obj2.pk, f1=4, f2=4, name="d"),
|
|
]
|
|
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"),
|
|
[
|
|
{"f1": 1, "f2": 1, "name": "c"},
|
|
{"f1": 2, "f2": 2, "name": "d"},
|
|
],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_two_fields_unique_fields_both(self):
|
|
with self.assertRaises((OperationalError, ProgrammingError)):
|
|
self._test_update_conflicts_two_fields(["f1", "f2"])
|
|
|
|
@skipUnlessDBFeature("supports_update_conflicts")
|
|
@skipIfDBFeature("supports_update_conflicts_with_target")
|
|
def test_update_conflicts_two_fields_no_unique_fields(self):
|
|
self._test_update_conflicts_two_fields([])
|
|
|
|
def _test_update_conflicts_unique_two_fields(self, unique_fields):
|
|
Country.objects.bulk_create(self.data)
|
|
self.assertEqual(Country.objects.count(), 4)
|
|
|
|
new_data = [
|
|
# Conflicting countries.
|
|
Country(
|
|
name="Germany",
|
|
iso_two_letter="DE",
|
|
description=("Germany is a country in Central Europe."),
|
|
),
|
|
Country(
|
|
name="Czech Republic",
|
|
iso_two_letter="CZ",
|
|
description=(
|
|
"The Czech Republic is a landlocked country in Central Europe."
|
|
),
|
|
),
|
|
# New countries.
|
|
Country(name="Australia", iso_two_letter="AU"),
|
|
Country(
|
|
name="Japan",
|
|
iso_two_letter="JP",
|
|
description=("Japan is an island country in East Asia."),
|
|
),
|
|
]
|
|
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"),
|
|
[
|
|
{"iso_two_letter": "US", "description": ""},
|
|
{"iso_two_letter": "NL", "description": ""},
|
|
{
|
|
"iso_two_letter": "DE",
|
|
"description": ("Germany is a country in Central Europe."),
|
|
},
|
|
{
|
|
"iso_two_letter": "CZ",
|
|
"description": (
|
|
"The Czech Republic is a landlocked country in Central Europe."
|
|
),
|
|
},
|
|
{"iso_two_letter": "AU", "description": ""},
|
|
{
|
|
"iso_two_letter": "JP",
|
|
"description": ("Japan is an island country in East Asia."),
|
|
},
|
|
],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_unique_two_fields_unique_fields_both(self):
|
|
self._test_update_conflicts_unique_two_fields(["iso_two_letter", "name"])
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_unique_two_fields_unique_fields_one(self):
|
|
with self.assertRaises((OperationalError, ProgrammingError)):
|
|
self._test_update_conflicts_unique_two_fields(["iso_two_letter"])
|
|
|
|
@skipUnlessDBFeature("supports_update_conflicts")
|
|
@skipIfDBFeature("supports_update_conflicts_with_target")
|
|
def test_update_conflicts_unique_two_fields_unique_no_unique_fields(self):
|
|
self._test_update_conflicts_unique_two_fields([])
|
|
|
|
def _test_update_conflicts(self, unique_fields):
|
|
UpsertConflict.objects.bulk_create(
|
|
[
|
|
UpsertConflict(number=1, rank=1, name="John"),
|
|
UpsertConflict(number=2, rank=2, name="Mary"),
|
|
UpsertConflict(number=3, rank=3, name="Hannah"),
|
|
]
|
|
)
|
|
self.assertEqual(UpsertConflict.objects.count(), 3)
|
|
|
|
conflicting_objects = [
|
|
UpsertConflict(number=1, rank=4, name="Steve"),
|
|
UpsertConflict(number=2, rank=2, name="Olivia"),
|
|
UpsertConflict(number=3, rank=1, name="Hannah"),
|
|
]
|
|
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"),
|
|
[
|
|
{"number": 1, "rank": 4, "name": "Steve"},
|
|
{"number": 2, "rank": 2, "name": "Olivia"},
|
|
{"number": 3, "rank": 1, "name": "Hannah"},
|
|
],
|
|
)
|
|
|
|
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"),
|
|
[
|
|
{"number": 1, "rank": 4, "name": "Steve"},
|
|
{"number": 2, "rank": 2, "name": "Olivia"},
|
|
{"number": 3, "rank": 1, "name": "Hannah"},
|
|
{"number": 4, "rank": 4, "name": "Mark"},
|
|
],
|
|
)
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_unique_fields(self):
|
|
self._test_update_conflicts(unique_fields=["number"])
|
|
|
|
@skipUnlessDBFeature("supports_update_conflicts")
|
|
@skipIfDBFeature("supports_update_conflicts_with_target")
|
|
def test_update_conflicts_no_unique_fields(self):
|
|
self._test_update_conflicts([])
|
|
|
|
@skipUnlessDBFeature(
|
|
"supports_update_conflicts", "supports_update_conflicts_with_target"
|
|
)
|
|
def test_update_conflicts_unique_fields_update_fields_db_column(self):
|
|
FieldsWithDbColumns.objects.bulk_create(
|
|
[
|
|
FieldsWithDbColumns(rank=1, name="a"),
|
|
FieldsWithDbColumns(rank=2, name="b"),
|
|
]
|
|
)
|
|
self.assertEqual(FieldsWithDbColumns.objects.count(), 2)
|
|
|
|
conflicting_objects = [
|
|
FieldsWithDbColumns(rank=1, name="c"),
|
|
FieldsWithDbColumns(rank=2, name="d"),
|
|
]
|
|
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"),
|
|
[
|
|
{"rank": 1, "name": "c"},
|
|
{"rank": 2, "name": "d"},
|
|
],
|
|
)
|