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from django.contrib.gis.db import models
class NamedModel(models.Model):
name = models.CharField(max_length=30)
class Meta:
abstract = True
def __str__(self):
return self.name
class City(NamedModel):
point = models.PointField(geography=True)
class Meta:
app_label = "geogapp"
class CityUnique(NamedModel):
point = models.PointField(geography=True, unique=True)
class Meta:
required_db_features = {
"supports_geography",
"supports_geometry_field_unique_index",
}
class Zipcode(NamedModel):
code = models.CharField(max_length=10)
poly = models.PolygonField(geography=True)
class County(NamedModel):
state = models.CharField(max_length=20)
mpoly = models.MultiPolygonField(geography=True)
class Meta:
app_label = "geogapp"
def __str__(self):
return " County, ".join([self.name, self.state])
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