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from django.db import models
from django import forms
class Triple(models.Model):
left = models.IntegerField()
middle = models.IntegerField()
right = models.IntegerField()
def __unicode__(self):
return u"%d, %d, %d" % (self.left, self.middle, self.right)
class Meta:
unique_together = (('left', 'middle'), ('middle', 'right'))
__test__ = {'API_TESTS': """
When the same field is involved in multiple unique_together constraints, we
need to make sure we don't remove the data for it before doing all the
validation checking (not just failing after the first one).
>>> _ = Triple.objects.create(left=1, middle=2, right=3)
>>> class TripleForm(forms.ModelForm):
... class Meta:
... model = Triple
>>> form = TripleForm({'left': '1', 'middle': '2', 'right': '3'})
>>> form.is_valid()
False
>>> form = TripleForm({'left': '1', 'middle': '3', 'right': '1'})
>>> form.is_valid()
True
"""}
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