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80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
from datetime import datetime
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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# M2M described on one of the models
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@python_2_unicode_compatible
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class Person(models.Model):
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name = models.CharField(max_length=128)
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class Group(models.Model):
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name = models.CharField(max_length=128)
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members = models.ManyToManyField(Person, through='Membership')
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custom_members = models.ManyToManyField(Person, through='CustomMembership', related_name="custom")
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nodefaultsnonulls = models.ManyToManyField(Person, through='TestNoDefaultsOrNulls', related_name="testnodefaultsnonulls")
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class Membership(models.Model):
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person = models.ForeignKey(Person)
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group = models.ForeignKey(Group)
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date_joined = models.DateTimeField(default=datetime.now)
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invite_reason = models.CharField(max_length=64, null=True)
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class Meta:
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ordering = ('date_joined', 'invite_reason', 'group')
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def __str__(self):
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return "%s is a member of %s" % (self.person.name, self.group.name)
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@python_2_unicode_compatible
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class CustomMembership(models.Model):
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person = models.ForeignKey(Person, db_column="custom_person_column", related_name="custom_person_related_name")
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group = models.ForeignKey(Group)
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weird_fk = models.ForeignKey(Membership, null=True)
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date_joined = models.DateTimeField(default=datetime.now)
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def __str__(self):
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return "%s is a member of %s" % (self.person.name, self.group.name)
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class Meta:
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db_table = "test_table"
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class TestNoDefaultsOrNulls(models.Model):
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person = models.ForeignKey(Person)
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group = models.ForeignKey(Group)
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nodefaultnonull = models.CharField(max_length=5)
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@python_2_unicode_compatible
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class PersonSelfRefM2M(models.Model):
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name = models.CharField(max_length=5)
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friends = models.ManyToManyField('self', through="Friendship", symmetrical=False)
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def __str__(self):
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return self.name
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class Friendship(models.Model):
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first = models.ForeignKey(PersonSelfRefM2M, related_name="rel_from_set")
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second = models.ForeignKey(PersonSelfRefM2M, related_name="rel_to_set")
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date_friended = models.DateTimeField()
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