/tests/modeltests/m2m_intermediary/models.py
https://code.google.com/p/mango-py/ · Python · 36 lines · 19 code · 0 blank · 17 comment · 1 complexity · 04acbaad11bc285e71659151b7d6f607 MD5 · raw file
- """
- 9. Many-to-many relationships via an intermediary table
- For many-to-many relationships that need extra fields on the intermediary
- table, use an intermediary model.
- In this example, an ``Article`` can have multiple ``Reporter`` objects, and
- each ``Article``-``Reporter`` combination (a ``Writer``) has a ``position``
- field, which specifies the ``Reporter``'s position for the given article
- (e.g. "Staff writer").
- """
- from django.db import models
- class Reporter(models.Model):
- first_name = models.CharField(max_length=30)
- last_name = models.CharField(max_length=30)
- def __unicode__(self):
- return u"%s %s" % (self.first_name, self.last_name)
- class Article(models.Model):
- headline = models.CharField(max_length=100)
- pub_date = models.DateField()
- def __unicode__(self):
- return self.headline
- class Writer(models.Model):
- reporter = models.ForeignKey(Reporter)
- article = models.ForeignKey(Article)
- position = models.CharField(max_length=100)
- def __unicode__(self):
- return u'%s (%s)' % (self.reporter, self.position)