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django/tests/admin_changelist/models.py

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import uuid
from django.contrib.auth.models import User
from django.db import models
class Event(models.Model):
# Oracle can have problems with a column named "date"
date = models.DateField(db_column="event_date")
class Parent(models.Model):
name = models.CharField(max_length=128)
class Child(models.Model):
parent = models.ForeignKey(Parent, models.SET_NULL, editable=False, null=True)
name = models.CharField(max_length=30, blank=True)
age = models.IntegerField(null=True, blank=True)
class Genre(models.Model):
name = models.CharField(max_length=20)
class Band(models.Model):
name = models.CharField(max_length=20)
nr_of_members = models.PositiveIntegerField()
genres = models.ManyToManyField(Genre)
class Musician(models.Model):
name = models.CharField(max_length=30)
age = models.IntegerField(null=True, blank=True)
def __str__(self):
return self.name
class Group(models.Model):
name = models.CharField(max_length=30)
members = models.ManyToManyField(Musician, through="Membership")
def __str__(self):
return self.name
class Concert(models.Model):
name = models.CharField(max_length=30)
group = models.ForeignKey(Group, models.CASCADE)
class Membership(models.Model):
music = models.ForeignKey(Musician, models.CASCADE)
group = models.ForeignKey(Group, models.CASCADE)
role = models.CharField(max_length=15)
class Quartet(Group):
pass
class ChordsMusician(Musician):
pass
class ChordsBand(models.Model):
name = models.CharField(max_length=30)
members = models.ManyToManyField(ChordsMusician, through="Invitation")
class Invitation(models.Model):
player = models.ForeignKey(ChordsMusician, models.CASCADE)
band = models.ForeignKey(ChordsBand, models.CASCADE)
instrument = models.CharField(max_length=15)
class Swallow(models.Model):
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4)
origin = models.CharField(max_length=255)
load = models.FloatField()
speed = models.FloatField()
class Meta:
ordering = ("speed", "load")
class SwallowOneToOne(models.Model):
swallow = models.OneToOneField(Swallow, models.CASCADE)
class UnorderedObject(models.Model):
"""
Model without any defined `Meta.ordering`.
Refs #17198.
"""
bool = models.BooleanField(default=True)
class OrderedObjectManager(models.Manager):
def get_queryset(self):
return super().get_queryset().order_by("number")
class OrderedObject(models.Model):
"""
Model with Manager that defines a default order.
Refs #17198.
"""
name = models.CharField(max_length=255)
bool = models.BooleanField(default=True)
number = models.IntegerField(default=0, db_column="number_val")
objects = OrderedObjectManager()
class CustomIdUser(models.Model):
uuid = models.AutoField(primary_key=True)
class CharPK(models.Model):
char_pk = models.CharField(max_length=100, primary_key=True)
class ProxyUser(User):
class Meta:
proxy = True