2c20883cb0
This makes models.BinaryField pickleable on PostgreSQL. Regression in 3cf80d3fcf7446afdde16a2be515c423f720e54d. Thanks Adam Zimmerman for the report. Backport of 2c7846d992ca512d36a73f518205015c88ed088c from main.
77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
import datetime
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from django.db import DJANGO_VERSION_PICKLE_KEY, models
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from django.utils.translation import gettext_lazy as _
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def standalone_number():
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return 1
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class Numbers:
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@staticmethod
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def get_static_number():
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return 2
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class PreviousDjangoVersionQuerySet(models.QuerySet):
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def __getstate__(self):
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state = super().__getstate__()
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state[DJANGO_VERSION_PICKLE_KEY] = '1.0'
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return state
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class MissingDjangoVersionQuerySet(models.QuerySet):
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def __getstate__(self):
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state = super().__getstate__()
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del state[DJANGO_VERSION_PICKLE_KEY]
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return state
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class Group(models.Model):
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name = models.CharField(_('name'), max_length=100)
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objects = models.Manager()
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previous_django_version_objects = PreviousDjangoVersionQuerySet.as_manager()
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missing_django_version_objects = MissingDjangoVersionQuerySet.as_manager()
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class Event(models.Model):
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title = models.CharField(max_length=100)
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group = models.ForeignKey(Group, models.CASCADE, limit_choices_to=models.Q())
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class Happening(models.Model):
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when = models.DateTimeField(blank=True, default=datetime.datetime.now)
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name = models.CharField(blank=True, max_length=100, default="test")
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number1 = models.IntegerField(blank=True, default=standalone_number)
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number2 = models.IntegerField(blank=True, default=Numbers.get_static_number)
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event = models.OneToOneField(Event, models.CASCADE, null=True)
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data = models.BinaryField(null=True)
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class Container:
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# To test pickling we need a class that isn't defined on module, but
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# is still available from app-cache. So, the Container class moves
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# SomeModel outside of module level
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class SomeModel(models.Model):
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somefield = models.IntegerField()
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class M2MModel(models.Model):
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added = models.DateField(default=datetime.date.today)
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groups = models.ManyToManyField(Group)
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class AbstractEvent(Event):
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class Meta:
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abstract = True
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ordering = ['title']
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class MyEvent(AbstractEvent):
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pass
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class Edition(models.Model):
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event = models.ForeignKey('MyEvent', on_delete=models.CASCADE)
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