1 from django.db import models

     2 

     3 # If ticket #1578 ever slips back in, these models will not be able to be

     4 # created (the field names being lower-cased versions of their opposite

     5 # classes is important here).

     6 

     7 class First(models.Model):

     8     second = models.IntegerField()

     9 

    10 class Second(models.Model):

    11     first = models.ForeignKey(First, related_name = 'the_first')

    12 

    13 # Protect against repetition of #1839, #2415 and #2536.

    14 class Third(models.Model):

    15     name = models.CharField(maxlength=20)

    16     third = models.ForeignKey('self', null=True, related_name='child_set')

    17 

    18 class Parent(models.Model):

    19     name = models.CharField(maxlength=20)

    20     bestchild = models.ForeignKey('Child', null=True, related_name='favored_by')

    21 

    22 class Child(models.Model):

    23     name = models.CharField(maxlength=20)

    24     parent = models.ForeignKey(Parent)

    25 

    26 

    27 __test__ = {'API_TESTS':"""

    28 >>> Third.AddManipulator().save(dict(id='3', name='An example', another=None)) 

    29 <Third: Third object>

    30 >>> parent = Parent(name = 'fred')

    31 >>> parent.save()

    32 >>> Child.AddManipulator().save(dict(name='bam-bam', parent=parent.id))

    33 <Child: Child object>

    34 """}