1 from django.db import models

     2 

     3 class Place(models.Model):

     4     name = models.CharField(max_length=50)

     5     address = models.CharField(max_length=80)

     6 

     7     def __unicode__(self):

     8         return u"%s the place" % self.name

     9 

    10 class Restaurant(models.Model):

    11     place = models.OneToOneField(Place)

    12     serves_hot_dogs = models.BooleanField()

    13     serves_pizza = models.BooleanField()

    14 

    15     def __unicode__(self):

    16         return u"%s the restaurant" % self.place.name

    17 

    18 class Bar(models.Model):

    19     place = models.OneToOneField(Place)

    20     serves_cocktails = models.BooleanField()

    21 

    22     def __unicode__(self):

    23         return u"%s the bar" % self.place.name

    24 

    25 class UndergroundBar(models.Model):

    26     place = models.OneToOneField(Place, null=True)

    27     serves_cocktails = models.BooleanField()

    28 

    29 class Favorites(models.Model):

    30     name = models.CharField(max_length = 50)

    31     restaurants = models.ManyToManyField(Restaurant)

    32 

    33     def __unicode__(self):

    34         return u"Favorites for %s" % self.name

    35 

    36 class Target(models.Model):

    37     pass

    38 

    39 class Pointer(models.Model):

    40     other = models.OneToOneField(Target, primary_key=True)

    41 

    42 class Pointer2(models.Model):

    43     other = models.OneToOneField(Target)