from django.contrib.gis.db import models from django.contrib.gis.tests.utils import mysql, spatialite from django.utils.encoding import python_2_unicode_compatible # MySQL spatial indices can't handle NULL geometries. null_flag = not mysql @python_2_unicode_compatible class Country(models.Model): name = models.CharField(max_length=30) mpoly = models.MultiPolygonField() # SRID, by default, is 4326 objects = models.GeoManager() def __str__(self): return self.name @python_2_unicode_compatible class City(models.Model): name = models.CharField(max_length=30) point = models.PointField() objects = models.GeoManager() def __str__(self): return self.name # This is an inherited model from City class PennsylvaniaCity(City): county = models.CharField(max_length=30) founded = models.DateTimeField(null=True) objects = models.GeoManager() # TODO: This should be implicitly inherited. @python_2_unicode_compatible class State(models.Model): name = models.CharField(max_length=30) poly = models.PolygonField(null=null_flag) # Allowing NULL geometries here. objects = models.GeoManager() def __str__(self): return self.name @python_2_unicode_compatible class Track(models.Model): name = models.CharField(max_length=30) line = models.LineStringField() objects = models.GeoManager() def __str__(self): return self.name class Truth(models.Model): val = models.BooleanField() objects = models.GeoManager() if not spatialite: @python_2_unicode_compatible class Feature(models.Model): name = models.CharField(max_length=20) geom = models.GeometryField() objects = models.GeoManager() def __str__(self): return self.name class MinusOneSRID(models.Model): geom = models.PointField(srid=-1) # Minus one SRID. objects = models.GeoManager()