Record time whenever cards change

apiserver/apiserver/api/management/commands/run_daily.py

@@ -1,5 +1,5 @@
 from django.core.management.base import BaseCommand, CommandError
-from apiserver.api import models, utils
+from apiserver.api import models, utils, utils_stats
 
 import time
 
@@ -22,3 +22,5 @@ class Command(BaseCommand):
         self.stdout.write('Tallied {} active members in {} s'.format(
             count, str(time.time() - start)
         ))
+
+        utils_stats.changed_card()

apiserver/apiserver/api/utils_stats.py

@@ -1,3 +1,4 @@
+from django.core.cache import cache
 import time
 
 DEFAULTS = {
@@ -10,3 +11,10 @@ DEFAULTS = {
     'bay_108_temp': None,
     'bay_110_temp': None,
 }
+
+def changed_card():
+    '''
+    Called whenever the card list could change, ie. cards added, modified, or
+    user status becoming overdue by 3 months
+    '''
+    cache.set('last_card_change', time.time())

apiserver/apiserver/api/views.py

@@ -134,6 +134,7 @@ class MemberViewSet(Base, Retrieve, Update):
         member.save()
         utils.tally_membership_months(member)
         utils.gen_member_forms(member)
+        utils_stats.changed_card()
         return Response(200)
 
 
@@ -142,6 +143,14 @@ class CardViewSet(Base, Create, Retrieve, Update, Destroy):
     queryset = models.Card.objects.all()
     serializer_class = serializers.CardSerializer
 
+    def perform_create(self, serializer):
+        serializer.save()
+        utils_stats.changed_card()
+
+    def perform_update(self, serializer):
+        serializer.save()
+        utils_stats.changed_card()
+
 
 class CourseViewSet(Base, List, Retrieve, Create, Update):
     permission_classes = [AllowMetadata | IsAuthenticated, IsAdminOrReadOnly | IsInstructorOrReadOnly]