old_contents: from django.contrib.gis.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from .fields import InternalCountryFileField
  
  
  class Country(models.Model):
      name = models.CharField(verbose_name=_('name'), max_length=100)
      polyfile = InternalCountryFileField(verbose_name=_('polyfile'))
      simplified_polygon = models.MultiPolygonField(verbose_name=_('simplified area'))
  
      @property
      def type_of_geometry(self):
          """
          Only needed for easier differentiation on the javascript side, has no real value otherwise.
  
          Returns: a string ("Country")
          """
          return 'Country'
  
      def __str__(self):
          return self.name
  
new_contents: from django.contrib.gis.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from .fields import InternalCountryFileField
  
  
  class Country(models.Model):
      name = models.CharField(verbose_name=_('name'), max_length=100)
      polyfile = InternalCountryFileField(verbose_name=_('polyfile'))
      simplified_polygon = models.MultiPolygonField(verbose_name=_('simplified area'))
  
      @property
      def type_of_geometry(self):
          """
          Only needed for easier distinction on the javascript side, has no real value otherwise.
  
          Returns: a string ("Country")
          """
          return 'Country'
  
      def __str__(self):
          return self.name
  
subject: clarify description