old_contents: from django.contrib.gis.db import models
  
  from councils.models import Council
  
  
  class PollingStation(models.Model):
      council = models.ForeignKey(Council, null=True)
      internal_council_id = models.CharField(blank=True, max_length=100)
      postcode = models.CharField(blank=True, null=True, max_length=100)
      address = models.TextField(blank=True, null=True)
      location = models.PointField(null=True, blank=True)
  
      objects = models.GeoManager()
  
  
  class PollingDistrict(models.Model):
      name = models.CharField(blank=True, null=True, max_length=255)
      council = models.ForeignKey(Council, null=True)
      internal_council_id = models.CharField(blank=True, max_length=100)
      extra_id = models.CharField(blank=True, null=True, max_length=100)
      area = models.MultiPolygonField(null=True, blank=True, geography=True)
  
      objects = models.GeoManager()
  
      def __unicode__(self):
          return self.name
  
new_contents: from django.contrib.gis.db import models
  
  from councils.models import Council
  
  
  class PollingStation(models.Model):
      council = models.ForeignKey(Council, null=True)
      internal_council_id = models.CharField(blank=True, max_length=100)
      postcode = models.CharField(blank=True, null=True, max_length=100)
      address = models.TextField(blank=True, null=True)
      location = models.PointField(null=True, blank=True)
  
      objects = models.GeoManager()
  
  
  class PollingDistrict(models.Model):
      name = models.CharField(blank=True, null=True, max_length=255)
      council = models.ForeignKey(Council, null=True)
      internal_council_id = models.CharField(blank=True, max_length=100)
      extra_id = models.CharField(blank=True, null=True, max_length=100)
      area = models.MultiPolygonField(null=True, blank=True, geography=True)
  
      objects = models.GeoManager()
  
      def __unicode__(self):
          name = self.name or "Unnamed"
          return "%s (%s)" % (name, self.council)
  
subject: Fix unicode for unknown names