To define a many-to-many relationship, use ManyToManyField.
In this example, an Article can be published in multiple Publication objects, and a Publication has multiple Article objects:
from django.db import models
class Publication(models.Model):
title = models.CharField(max_length=30)
def __str__(self): # __unicode__ on Python 2
return self.title
class Meta:
ordering = ('title',)
class Article(models.Model):
headline = models.CharField(max_leng