"""

XX. Model inheritance

Model inheritance isn't yet supported.

"""

from django.db import models

class Place(models.Model):

    name = models.CharField(maxlength=50)

    address = models.CharField(maxlength=80)

    def __str__(self):

        return "%s the place" % self.name

class Restaurant(Place):

    serves_hot_dogs = models.BooleanField()

    serves_pizza = models.BooleanField()

    def __str__(self):

        return "%s the restaurant" % self.name

class ItalianRestaurant(Restaurant):

    serves_gnocchi = models.BooleanField()

    def __str__(self):

        return "%s the italian restaurant" % self.name

__test__ = {'API_TESTS':"""

# Make sure Restaurant has the right fields in the right order.

>>> [f.name for f in Restaurant._meta.fields]

['id', 'name', 'address', 'serves_hot_dogs', 'serves_pizza']

# Make sure ItalianRestaurant has the right fields in the right order.

>>> [f.name for f in ItalianRestaurant._meta.fields]

['id', 'name', 'address', 'serves_hot_dogs', 'serves_pizza', 'serves_gnocchi']

# Create a couple of Places.

>>> p1 = Place(name='Master Shakes', address='666 W. Jersey')

>>> p1.save()

>>> p2 = Place(name='Ace Hardware', address='1013 N. Ashland')

>>> p2.save()

# Test constructor for Restaurant.

>>> r = Restaurant(name='Demon Dogs', address='944 W. Fullerton', serves_hot_dogs=True, serves_pizza=False)

>>> r.save()

# Test the constructor for ItalianRestaurant.

>>> ir = ItalianRestaurant(name='Ristorante Miron', address='1234 W. Elm', serves_hot_dogs=False, serves_pizza=False, serves_gnocchi=True)

>>> ir.save()

"""}