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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