python/lib/django-1.2/tests/regressiontests/many_to_one_regress/models.py

   1 """
   2 Regression tests for a few ForeignKey bugs.
   3 """
   4
   5 from django.db import models
   6
   7 # If ticket #1578 ever slips back in, these models will not be able to be
   8 # created (the field names being lower-cased versions of their opposite
   9 # classes is important here).
  10
  11 class First(models.Model):
  12     second = models.IntegerField()
  13
  14 class Second(models.Model):
  15     first = models.ForeignKey(First, related_name = 'the_first')
  16
  17 # Protect against repetition of #1839, #2415 and #2536.
  18 class Third(models.Model):
  19     name = models.CharField(max_length=20)
  20     third = models.ForeignKey('self', null=True, related_name='child_set')
  21
  22 class Parent(models.Model):
  23     name = models.CharField(max_length=20)
  24     bestchild = models.ForeignKey('Child', null=True, related_name='favored_by')
  25
  26 class Child(models.Model):
  27     name = models.CharField(max_length=20)
  28     parent = models.ForeignKey(Parent)
  29
  30
  31 # Multiple paths to the same model (#7110, #7125)
  32 class Category(models.Model):
  33     name = models.CharField(max_length=20)
  34
  35     def __unicode__(self):
  36         return self.name
  37
  38 class Record(models.Model):
  39     category = models.ForeignKey(Category)
  40
  41 class Relation(models.Model):
  42     left = models.ForeignKey(Record, related_name='left_set')
  43     right = models.ForeignKey(Record, related_name='right_set')
  44
  45     def __unicode__(self):
  46         return u"%s - %s" % (self.left.category.name, self.right.category.name)