code: def dashboard(request):
      
      sources = (models.Source.objects.all().prefetch_related('metric_set')
                                            .order_by('name'))
      metrics = SortedDict([(src, src.metric_set.all()) for src in sources])
      no_source_metrics = models.Metric.objects.filter(source__isnull=True)
      if no_source_metrics:
          metrics[''] = no_source_metrics
  
      if request.META.get('HTTP_X_PJAX', False):
          parent_template = 'pjax.html'
      else:
          parent_template = 'base.html'
      return render(request, 'metrics/dashboard.html', {
          'source_metrics': metrics,
          'parent_template': parent_template
      })
docs: Shows the latest results for each source