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"""
Reverse lookups
This demonstrates the reverse lookup features of the database API.
"""
from django.db import models
from django.utils.encoding import python_2_unicode_compatible
@python_2_unicode_compatible
class User(models.Model):
name = models.CharField(max_length=200)
def __str__(self):
return self.name
@python_2_unicode_compatible
class Poll(models.Model):
question = models.CharField(max_length=200)
creator = models.ForeignKey(User, models.CASCADE)
def __str__(self):
return self.question
@python_2_unicode_compatible
class Choice(models.Model):
name = models.CharField(max_length=100)
poll = models.ForeignKey(Poll, models.CASCADE, related_name="poll_choice")
related_poll = models.ForeignKey(Poll, models.CASCADE, related_name="related_choice")
def __str__(self):
return self.name
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