old_contents: from django.forms import widgets
  from django.utils.safestring import mark_safe
  
  
  class MapWidget(widgets.HiddenInput):
      """Custom map widget for displaying interactive google map to geocode
      addresses of learning centers.
  
      This widget displays a readonly input box to store lat+lng data, an empty
      help div, a map div for the google map, and a button to initiate geocoding.
      """
  
      def render(self, name, value, attrs=None):
          """Overrides the render method. This controls the actual html output of a form
          on the page
  
          See widget docs for more information:
          https://docs.djangoproject.com/en/1.4/ref/forms/widgets/
          """
          
          widget = super(MapWidget, self).render(name, value, attrs)
          return mark_safe("""<input name="geom" readonly="readonly" value="%s" type="text" id="id_geom" size="60">
                           <br>
                           <input type="button" value="Geocode Address" onclick=ecepAdmin.geocodeAddress()>
                           (<a onclick=ecepAdmin.mapHelp() href="#">?</a>)
                           <div id='map-help'></div><div id="map">%s</div>""" % (value, widget))
  
new_contents: from django.forms import widgets
  from django.utils.safestring import mark_safe
  
  
  class MapWidget(widgets.HiddenInput):
      """Custom map widget for displaying interactive google map to geocode
      addresses of learning centers.
  
      This widget displays a readonly input box to store lat+lng data, an empty
      help div, a map div for the google map, and a button to initiate geocoding.
      """
  
      def render(self, name, value, attrs=None):
          """Overrides the render method. This controls the actual html output of a form
          on the page
  
          See widget docs for more information:
          https://docs.djangoproject.com/en/1.4/ref/forms/widgets/
          """
          
          widget = super(MapWidget, self).render(name, value, attrs)
          return mark_safe("""<input name="geom" readonly="readonly" value="%s" type="text" id="id_geom" size="60" class="%s">
                           <br>
                           <input type="button" value="Geocode Address" onclick=ecepAdmin.geocodeAddress()>
                           (<a onclick=ecepAdmin.mapHelp() href="#">?</a>)
                           <div id='map-help'></div><div id="map">%s</div>""" % (value, self.attrs.get('class', None), widget))
  
subject: Set optional class on map widget if class attribute passed