Add a 'last_modified' function for mirror status pages

We can use this on both the HTML and JSON views of this data to prevent
recomputation for smart clients that respect the modified date header.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/mirrors/views.py b/mirrors/views.py
index 3433616..5429cea 100644
--- a/mirrors/views.py
+++ b/mirrors/views.py
@@ -11,6 +11,7 @@ from django.http import Http404, HttpResponse
 from django.shortcuts import get_object_or_404, redirect, render
 from django.utils.timezone import now
 from django.views.decorators.csrf import csrf_exempt
+from django.views.decorators.http import condition
 from django_countries.countries import COUNTRIES
 
 from .models import (Mirror, MirrorUrl, MirrorProtocol, MirrorLog,
@@ -220,6 +221,11 @@ def url_details(request, name, url_id):
     return render(request, 'mirrors/url_details.html', context)
 
 
+def status_last_modified(request, *args, **kwargs):
+    return MirrorLog.objects.values_list('check_time', flat=True).latest()
+
+
+@condition(last_modified_func=status_last_modified)
 def status(request, tier=None):
     if tier is not None:
         tier = int(tier)
@@ -297,6 +303,7 @@ class ExtendedMirrorStatusJSONEncoder(MirrorStatusJSONEncoder):
         return super(ExtendedMirrorStatusJSONEncoder, self).default(obj)
 
 
+@condition(last_modified_func=status_last_modified)
 def status_json(request, tier=None):
     if tier is not None:
         tier = int(tier)