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9e55201555
The previous logic was systematically attempting to retrieve last_insert_id even for models without an AutoField primary key when they had a GeneratedField on backends that can't return columns from INSERT. The issue affected MySQL, SQLite < 3.35, and Oracle when the use_returning_into option was disabled and could result in either crashes when the non-auto primary key wasn't an IntegerField subclass or silent misassignment of bogus insert ids (0 or the previous auto primary key insert value) to the first defined generated field value.
703 lines
20 KiB
Python
703 lines
20 KiB
Python
import json
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import tempfile
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import uuid
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from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
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from django.contrib.contenttypes.models import ContentType
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from django.core.files.storage import FileSystemStorage
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from django.core.serializers.json import DjangoJSONEncoder
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from django.db import connection, models
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from django.db.models import F, Value
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from django.db.models.fields.files import ImageFieldFile
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from django.db.models.functions import Lower
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from django.utils.functional import SimpleLazyObject
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from django.utils.translation import gettext_lazy as _
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from .storage import NoReadFileSystemStorage
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try:
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from PIL import Image
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except ImportError:
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Image = None
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# Set up a temp directory for file storage.
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temp_storage_dir = tempfile.mkdtemp()
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temp_storage = FileSystemStorage(temp_storage_dir)
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test_collation = SimpleLazyObject(
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lambda: connection.features.test_collations["virtual"]
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)
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class Foo(models.Model):
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a = models.CharField(max_length=10)
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d = models.DecimalField(max_digits=5, decimal_places=3)
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def get_foo():
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return Foo.objects.get(id=1).pk
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class Bar(models.Model):
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b = models.CharField(max_length=10)
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a = models.ForeignKey(Foo, models.CASCADE, default=get_foo, related_name="bars")
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class Whiz(models.Model):
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CHOICES = {
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"Group 1": {
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1: "First",
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2: "Second",
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},
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"Group 2": (
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(3, "Third"),
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(4, "Fourth"),
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),
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0: "Other",
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5: _("translated"),
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}
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c = models.IntegerField(choices=CHOICES, null=True)
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class WhizDelayed(models.Model):
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c = models.IntegerField(choices=(), null=True)
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# Contrived way of adding choices later.
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WhizDelayed._meta.get_field("c").choices = Whiz.CHOICES
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class WhizIter(models.Model):
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c = models.IntegerField(choices=iter(Whiz.CHOICES.items()), null=True)
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class WhizIterEmpty(models.Model):
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c = models.CharField(choices=iter(()), blank=True, max_length=1)
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class Choiceful(models.Model):
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class Suit(models.IntegerChoices):
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DIAMOND = 1, "Diamond"
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SPADE = 2, "Spade"
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HEART = 3, "Heart"
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CLUB = 4, "Club"
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def get_choices():
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return [(i, str(i)) for i in range(3)]
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no_choices = models.IntegerField(null=True)
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empty_choices = models.IntegerField(choices=(), null=True)
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with_choices = models.IntegerField(choices=[(1, "A")], null=True)
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with_choices_dict = models.IntegerField(choices={1: "A"}, null=True)
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with_choices_nested_dict = models.IntegerField(
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choices={"Thing": {1: "A"}}, null=True
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)
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empty_choices_bool = models.BooleanField(choices=())
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empty_choices_text = models.TextField(choices=())
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choices_from_enum = models.IntegerField(choices=Suit)
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choices_from_iterator = models.IntegerField(choices=((i, str(i)) for i in range(3)))
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choices_from_callable = models.IntegerField(choices=get_choices)
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class BigD(models.Model):
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d = models.DecimalField(max_digits=32, decimal_places=30)
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class FloatModel(models.Model):
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size = models.FloatField()
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class BigS(models.Model):
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s = models.SlugField(max_length=255)
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class UnicodeSlugField(models.Model):
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s = models.SlugField(max_length=255, allow_unicode=True)
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class AutoModel(models.Model):
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value = models.AutoField(primary_key=True)
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class BigAutoModel(models.Model):
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value = models.BigAutoField(primary_key=True)
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class SmallAutoModel(models.Model):
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value = models.SmallAutoField(primary_key=True)
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class SmallIntegerModel(models.Model):
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value = models.SmallIntegerField()
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class IntegerModel(models.Model):
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value = models.IntegerField()
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class BigIntegerModel(models.Model):
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value = models.BigIntegerField()
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null_value = models.BigIntegerField(null=True, blank=True)
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class PositiveBigIntegerModel(models.Model):
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value = models.PositiveBigIntegerField()
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class PositiveSmallIntegerModel(models.Model):
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value = models.PositiveSmallIntegerField()
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class PositiveIntegerModel(models.Model):
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value = models.PositiveIntegerField()
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class Post(models.Model):
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title = models.CharField(max_length=100)
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body = models.TextField()
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class NullBooleanModel(models.Model):
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nbfield = models.BooleanField(null=True, blank=True)
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class BooleanModel(models.Model):
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bfield = models.BooleanField()
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class DateTimeModel(models.Model):
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d = models.DateField()
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dt = models.DateTimeField()
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t = models.TimeField()
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class DurationModel(models.Model):
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field = models.DurationField()
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class NullDurationModel(models.Model):
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field = models.DurationField(null=True)
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class PrimaryKeyCharModel(models.Model):
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string = models.CharField(max_length=10, primary_key=True)
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class FksToBooleans(models.Model):
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"""Model with FKs to models with {Null,}BooleanField's, #15040"""
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bf = models.ForeignKey(BooleanModel, models.CASCADE)
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nbf = models.ForeignKey(NullBooleanModel, models.CASCADE)
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class FkToChar(models.Model):
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"""Model with FK to a model with a CharField primary key, #19299"""
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out = models.ForeignKey(PrimaryKeyCharModel, models.CASCADE)
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class RenamedField(models.Model):
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modelname = models.IntegerField(name="fieldname", choices=((1, "One"),))
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class VerboseNameField(models.Model):
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id = models.AutoField("verbose pk", primary_key=True)
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field1 = models.BigIntegerField("verbose field1")
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field2 = models.BooleanField("verbose field2", default=False)
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field3 = models.CharField("verbose field3", max_length=10)
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field4 = models.DateField("verbose field4")
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field5 = models.DateTimeField("verbose field5")
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field6 = models.DecimalField("verbose field6", max_digits=6, decimal_places=1)
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field7 = models.EmailField("verbose field7")
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field8 = models.FileField(
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"verbose field8", storage=temp_storage, upload_to="unused"
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)
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field9 = models.FilePathField("verbose field9")
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field10 = models.FloatField("verbose field10")
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# Don't want to depend on Pillow in this test
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# field_image = models.ImageField("verbose field")
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field11 = models.IntegerField("verbose field11")
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field12 = models.GenericIPAddressField("verbose field12", protocol="ipv4")
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field13 = models.PositiveIntegerField("verbose field13")
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field14 = models.PositiveSmallIntegerField("verbose field14")
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field15 = models.SlugField("verbose field15")
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field16 = models.SmallIntegerField("verbose field16")
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field17 = models.TextField("verbose field17")
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field18 = models.TimeField("verbose field18")
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field19 = models.URLField("verbose field19")
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field20 = models.UUIDField("verbose field20")
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field21 = models.DurationField("verbose field21")
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class GenericIPAddress(models.Model):
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ip = models.GenericIPAddressField(null=True, protocol="ipv4")
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###############################################################################
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# These models aren't used in any test, just here to ensure they validate
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# successfully.
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# See ticket #16570.
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class DecimalLessThanOne(models.Model):
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d = models.DecimalField(max_digits=3, decimal_places=3)
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# See ticket #18389.
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class FieldClassAttributeModel(models.Model):
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field_class = models.CharField
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###############################################################################
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class DataModel(models.Model):
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short_data = models.BinaryField(max_length=10, default=b"\x08")
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data = models.BinaryField()
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###############################################################################
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# FileField
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class Document(models.Model):
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myfile = models.FileField(storage=temp_storage, upload_to="unused", unique=True)
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###############################################################################
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# ImageField
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# If Pillow available, do these tests.
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if Image:
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class TestImageFieldFile(ImageFieldFile):
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"""
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Custom Field File class that records whether or not the underlying file
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was opened.
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"""
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def __init__(self, *args, **kwargs):
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self.was_opened = False
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super().__init__(*args, **kwargs)
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def open(self):
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self.was_opened = True
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super().open()
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class TestImageField(models.ImageField):
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attr_class = TestImageFieldFile
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class Person(models.Model):
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"""
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Model that defines an ImageField with no dimension fields.
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"""
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name = models.CharField(max_length=50)
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mugshot = TestImageField(storage=temp_storage, upload_to="tests")
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class AbstractPersonWithHeight(models.Model):
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"""
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Abstract model that defines an ImageField with only one dimension field
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to make sure the dimension update is correctly run on concrete subclass
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instance post-initialization.
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"""
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mugshot = TestImageField(
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storage=temp_storage, upload_to="tests", height_field="mugshot_height"
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)
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mugshot_height = models.PositiveSmallIntegerField()
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class Meta:
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abstract = True
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class PersonWithHeight(AbstractPersonWithHeight):
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"""
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Concrete model that subclass an abstract one with only on dimension
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field.
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"""
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name = models.CharField(max_length=50)
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class PersonWithHeightAndWidth(models.Model):
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"""
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Model that defines height and width fields after the ImageField.
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"""
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name = models.CharField(max_length=50)
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mugshot = TestImageField(
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storage=temp_storage,
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upload_to="tests",
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height_field="mugshot_height",
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width_field="mugshot_width",
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)
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mugshot_height = models.PositiveSmallIntegerField()
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mugshot_width = models.PositiveSmallIntegerField()
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class PersonDimensionsFirst(models.Model):
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"""
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Model that defines height and width fields before the ImageField.
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"""
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name = models.CharField(max_length=50)
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mugshot_height = models.PositiveSmallIntegerField()
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mugshot_width = models.PositiveSmallIntegerField()
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mugshot = TestImageField(
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storage=temp_storage,
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upload_to="tests",
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height_field="mugshot_height",
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width_field="mugshot_width",
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)
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class PersonTwoImages(models.Model):
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"""
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Model that:
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* Defines two ImageFields
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* Defines the height/width fields before the ImageFields
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* Has a nullable ImageField
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"""
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name = models.CharField(max_length=50)
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mugshot_height = models.PositiveSmallIntegerField()
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mugshot_width = models.PositiveSmallIntegerField()
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mugshot = TestImageField(
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storage=temp_storage,
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upload_to="tests",
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height_field="mugshot_height",
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width_field="mugshot_width",
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)
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headshot_height = models.PositiveSmallIntegerField(blank=True, null=True)
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headshot_width = models.PositiveSmallIntegerField(blank=True, null=True)
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headshot = TestImageField(
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blank=True,
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null=True,
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storage=temp_storage,
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upload_to="tests",
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height_field="headshot_height",
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width_field="headshot_width",
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)
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class PersonNoReadImage(models.Model):
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"""
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Model that defines an ImageField with a storage backend that does not
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support reading.
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"""
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mugshot = models.ImageField(
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upload_to="tests",
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storage=NoReadFileSystemStorage(temp_storage_dir),
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width_field="mugshot_width",
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height_field="mugshot_height",
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)
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mugshot_width = models.IntegerField()
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mugshot_height = models.IntegerField()
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class CustomJSONDecoder(json.JSONDecoder):
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def __init__(self, object_hook=None, *args, **kwargs):
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return super().__init__(object_hook=self.as_uuid, *args, **kwargs)
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def as_uuid(self, dct):
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if "uuid" in dct:
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dct["uuid"] = uuid.UUID(dct["uuid"])
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return dct
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class JSONModel(models.Model):
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value = models.JSONField()
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class Meta:
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required_db_features = {"supports_json_field"}
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class NullableJSONModel(models.Model):
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value = models.JSONField(blank=True, null=True)
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value_custom = models.JSONField(
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encoder=DjangoJSONEncoder,
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decoder=CustomJSONDecoder,
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null=True,
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)
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class Meta:
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required_db_features = {"supports_json_field"}
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class RelatedJSONModel(models.Model):
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value = models.JSONField()
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json_model = models.ForeignKey(NullableJSONModel, models.CASCADE)
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class Meta:
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required_db_features = {"supports_json_field"}
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class AllFieldsModel(models.Model):
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big_integer = models.BigIntegerField()
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binary = models.BinaryField()
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boolean = models.BooleanField(default=False)
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char = models.CharField(max_length=10)
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date = models.DateField()
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datetime = models.DateTimeField()
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decimal = models.DecimalField(decimal_places=2, max_digits=2)
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duration = models.DurationField()
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email = models.EmailField()
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file_path = models.FilePathField()
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floatf = models.FloatField()
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integer = models.IntegerField()
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generic_ip = models.GenericIPAddressField()
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positive_integer = models.PositiveIntegerField()
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positive_small_integer = models.PositiveSmallIntegerField()
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slug = models.SlugField()
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small_integer = models.SmallIntegerField()
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text = models.TextField()
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time = models.TimeField()
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url = models.URLField()
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uuid = models.UUIDField()
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fo = models.ForeignObject(
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"self",
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on_delete=models.CASCADE,
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from_fields=["positive_integer"],
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to_fields=["id"],
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related_name="reverse",
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)
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fk = models.ForeignKey("self", models.CASCADE, related_name="reverse2")
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m2m = models.ManyToManyField("self")
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oto = models.OneToOneField("self", models.CASCADE)
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object_id = models.PositiveIntegerField()
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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gfk = GenericForeignKey()
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gr = GenericRelation(DataModel)
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class ManyToMany(models.Model):
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m2m = models.ManyToManyField("self")
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###############################################################################
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class UUIDModel(models.Model):
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field = models.UUIDField()
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class NullableUUIDModel(models.Model):
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field = models.UUIDField(blank=True, null=True)
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class PrimaryKeyUUIDModel(models.Model):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4)
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class RelatedToUUIDModel(models.Model):
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uuid_fk = models.ForeignKey("PrimaryKeyUUIDModel", models.CASCADE)
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class UUIDChild(PrimaryKeyUUIDModel):
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pass
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class UUIDGrandchild(UUIDChild):
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pass
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class GeneratedModelFieldWithConverters(models.Model):
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field = models.UUIDField()
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field_copy = models.GeneratedField(
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expression=F("field"),
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output_field=models.UUIDField(),
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db_persist=True,
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)
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class Meta:
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required_db_features = {"supports_stored_generated_columns"}
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class GeneratedModel(models.Model):
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a = models.IntegerField()
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b = models.IntegerField()
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field = models.GeneratedField(
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expression=F("a") + F("b"),
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output_field=models.IntegerField(),
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db_persist=True,
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)
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fk = models.ForeignKey(Foo, on_delete=models.CASCADE, null=True, blank=True)
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class Meta:
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required_db_features = {"supports_stored_generated_columns"}
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class GeneratedModelNonAutoPk(models.Model):
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id = models.IntegerField(primary_key=True)
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a = models.IntegerField()
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b = models.GeneratedField(
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expression=F("a"),
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output_field=models.IntegerField(),
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db_persist=True,
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)
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class Meta:
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required_db_features = {"supports_stored_generated_columns"}
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class GeneratedModelVirtual(models.Model):
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a = models.IntegerField()
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b = models.IntegerField()
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field = models.GeneratedField(
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expression=F("a") + F("b"),
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output_field=models.IntegerField(),
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db_persist=False,
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)
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fk = models.ForeignKey(Foo, on_delete=models.CASCADE, null=True, blank=True)
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class Meta:
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required_db_features = {"supports_virtual_generated_columns"}
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class GeneratedModelParams(models.Model):
|
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field = models.GeneratedField(
|
|
expression=Value("Constant", output_field=models.CharField(max_length=10)),
|
|
output_field=models.CharField(max_length=10),
|
|
db_persist=True,
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_stored_generated_columns"}
|
|
|
|
|
|
class GeneratedModelParamsVirtual(models.Model):
|
|
field = models.GeneratedField(
|
|
expression=Value("Constant", output_field=models.CharField(max_length=10)),
|
|
output_field=models.CharField(max_length=10),
|
|
db_persist=False,
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_virtual_generated_columns"}
|
|
|
|
|
|
class GeneratedModelOutputFieldDbCollation(models.Model):
|
|
name = models.CharField(max_length=10)
|
|
lower_name = models.GeneratedField(
|
|
expression=Lower("name"),
|
|
output_field=models.CharField(db_collation=test_collation, max_length=11),
|
|
db_persist=True,
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_stored_generated_columns"}
|
|
|
|
|
|
class GeneratedModelOutputFieldDbCollationVirtual(models.Model):
|
|
name = models.CharField(max_length=10)
|
|
lower_name = models.GeneratedField(
|
|
expression=Lower("name"),
|
|
db_persist=False,
|
|
output_field=models.CharField(db_collation=test_collation, max_length=11),
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_virtual_generated_columns"}
|
|
|
|
|
|
class GeneratedModelNull(models.Model):
|
|
name = models.CharField(max_length=10, null=True)
|
|
lower_name = models.GeneratedField(
|
|
expression=Lower("name"),
|
|
output_field=models.CharField(max_length=10),
|
|
db_persist=True,
|
|
null=True,
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_stored_generated_columns"}
|
|
|
|
|
|
class GeneratedModelNullVirtual(models.Model):
|
|
name = models.CharField(max_length=10, null=True)
|
|
lower_name = models.GeneratedField(
|
|
expression=Lower("name"),
|
|
output_field=models.CharField(max_length=10),
|
|
db_persist=False,
|
|
null=True,
|
|
)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_virtual_generated_columns"}
|
|
|
|
|
|
class GeneratedModelBase(models.Model):
|
|
a = models.IntegerField()
|
|
a_squared = models.GeneratedField(
|
|
expression=F("a") * F("a"),
|
|
output_field=models.IntegerField(),
|
|
db_persist=True,
|
|
)
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
|
|
class GeneratedModelVirtualBase(models.Model):
|
|
a = models.IntegerField()
|
|
a_squared = models.GeneratedField(
|
|
expression=F("a") * F("a"),
|
|
output_field=models.IntegerField(),
|
|
db_persist=False,
|
|
)
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
|
|
class GeneratedModelCheckConstraint(GeneratedModelBase):
|
|
class Meta:
|
|
required_db_features = {
|
|
"supports_stored_generated_columns",
|
|
"supports_table_check_constraints",
|
|
}
|
|
constraints = [
|
|
models.CheckConstraint(
|
|
condition=models.Q(a__gt=0),
|
|
name="Generated model check constraint a > 0",
|
|
)
|
|
]
|
|
|
|
|
|
class GeneratedModelCheckConstraintVirtual(GeneratedModelVirtualBase):
|
|
class Meta:
|
|
required_db_features = {
|
|
"supports_virtual_generated_columns",
|
|
"supports_table_check_constraints",
|
|
}
|
|
constraints = [
|
|
models.CheckConstraint(
|
|
condition=models.Q(a__gt=0),
|
|
name="Generated model check constraint virtual a > 0",
|
|
)
|
|
]
|
|
|
|
|
|
class GeneratedModelUniqueConstraint(GeneratedModelBase):
|
|
class Meta:
|
|
required_db_features = {
|
|
"supports_stored_generated_columns",
|
|
"supports_expression_indexes",
|
|
}
|
|
constraints = [
|
|
models.UniqueConstraint(F("a"), name="Generated model unique constraint a"),
|
|
]
|
|
|
|
|
|
class GeneratedModelUniqueConstraintVirtual(GeneratedModelVirtualBase):
|
|
class Meta:
|
|
required_db_features = {
|
|
"supports_virtual_generated_columns",
|
|
"supports_expression_indexes",
|
|
}
|
|
constraints = [
|
|
models.UniqueConstraint(
|
|
F("a"), name="Generated model unique constraint virtual a"
|
|
),
|
|
]
|