episodes: order diffusion dates

panikweb/views.py

@@ -109,7 +109,8 @@ class EpisodeDetailView(DetailView, EmissionMixin):
     def get_context_data(self, **kwargs):
         context = super(EpisodeDetailView, self).get_context_data(**kwargs)
         context['sectionName'] = "Emissions"
-        context['diffusions'] = Diffusion.objects.select_related().filter(episode=self.object.id)
+        context['diffusions'] = Diffusion.objects.select_related().filter(
+                episode=self.object.id).order_by('datetime')
         context['emission'] = Emission.objects.get(slug=self.kwargs.get('emission_slug'))
         context.update(self.get_emission_context(context['emission']))
         return context