""" 29. 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, related_name='test_issue_client') def __unicode__(self): return unicode(self.num) class Meta: ordering = ('num',)