django/tests/m2m_and_m2o/models.py

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"""
Many-to-many and many-to-one relationships to the same table
Make sure to set ``related_name`` if you use relationships to the same table.
"""
from django.db import models
class User(models.Model):
username = models.CharField(max_length=20)
class Issue(models.Model):
num = models.IntegerField()
cc = models.ManyToManyField(User, blank=True, related_name='test_issue_cc')
client = models.ForeignKey(User, models.CASCADE, related_name='test_issue_client')
def __str__(self):
return str(self.num)
class Meta:
ordering = ('num',)
class StringReferenceModel(models.Model):
others = models.ManyToManyField('StringReferenceModel')