1 from django.contrib.gis.db import models

     2 

     3 class City(models.Model):

     4     name = models.CharField(max_length=30)

     5     point = models.PointField(geography=True)

     6     objects = models.GeoManager()

     7     def __unicode__(self): return self.name

     8 

     9 class Zipcode(models.Model):

    10     code = models.CharField(max_length=10)

    11     poly = models.PolygonField(geography=True)

    12     objects = models.GeoManager()

    13     def __unicode__(self): return self.name

    14 

    15 class County(models.Model):

    16     name = models.CharField(max_length=25)

    17     state = models.CharField(max_length=20)

    18     mpoly = models.MultiPolygonField(geography=True)

    19     objects = models.GeoManager()

    20     def __unicode__(self): return ' County, '.join([self.name, self.state])