add a latest method to query the latest x events

src/events/mixins.py

@@ -1,4 +1,6 @@
 """Mixins for Events."""
+from django.http import Http404
+
 from . import models
 
 
@@ -9,7 +11,6 @@ class EventArchiveMixin(object):
     date_field = 'start'
     make_object_list = True
     model = models.Event
-    ordering = ('start', 'end')
     paginate_by = 15
     template_name = 'events/event_archive.html'
 
@@ -40,3 +41,16 @@ class EventDetailMixin(object):
         elif hasattr(self, 'object') and hasattr(self.object, 'event'):
             context['event'] = self.object.event
         return context
+
+    def get_queryset(self):
+        """set event attribute from the URL kwarg event and
+        load all related objects from the set model.
+
+        :return: a django QuerySets
+        """
+        try:
+            self.event = models.Event.objects.get(pk=self.kwargs['event'])
+            queryset = self.model.objects.filter(event=self.event)
+        except models.Event.DoesNotExist:
+            raise Http404(_('Event does not exist'))
+        return queryset.prefetch_related()