FEAT: Initial work on revision history for assets

The revision history for individual items mostly works, though it shows database ID where it should show asset ID. Recent changes feed isn't yet done.

assets/views.py

@@ -6,7 +6,7 @@ from django.utils.decorators import method_decorator
 from django.urls import reverse
 from django.db.models import Q
 from assets import models, forms
-
+from RIGS import versioning
 
 @method_decorator(csrf_exempt, name='dispatch')
 class AssetList(LoginRequiredMixin, generic.ListView):
@@ -203,3 +203,17 @@ class SupplierUpdate(generic.UpdateView):
     model = models.Supplier
     form_class = forms.SupplierForm
     template_name = 'supplier_update.html'
+
+class AssetVersionHistory(AssetIDUrlMixin, versioning.VersionHistory):
+    def get_context_data(self, **kwargs):
+        thisModel = self.kwargs['model']
+        context = super(versioning.VersionHistory, self).get_context_data(**kwargs)
+        queryset = models.Asset.objects.filter(asset_id=self.kwargs['pk'])
+        try:
+            # Get the single item from the filtered queryset
+            context['object'] = queryset.get()
+        except queryset.model.DoesNotExist:
+            raise Http404(_("No %(verbose_name)s found matching the query") %
+                          {'verbose_name': queryset.model._meta.verbose_name})
+
+        return context