Fix metrics again

shiftregister/metrics/views.py

@@ -5,6 +5,10 @@ from django.db import models
 
 
 def metrics(request):
+    worked_seconds_total = ShiftRegistration.objects.filter(
+        state=ShiftRegistration.RegState.CHECKED_IN
+    ).aggregate(sum=Sum("shift__duration"))["sum"]
+
     response = HttpResponse(
         "\n".join(
             (
@@ -38,18 +42,16 @@ def metrics(request):
                         Message.objects.all().count(),
                     ),
                     (
-                        "worked_shifts_total",
-                        ShiftRegistration.objects.filter(
-                            state=ShiftRegistration.RegState.CHECKED_IN
-                        ).count(),
+                        "worked_seconds_total",
+                        worked_seconds_total.total_seconds()
+                        if worked_seconds_total
+                        else 0.0,
                     ),
                     (
-                        "worked_seconds_total",
+                        "worked_shifts_total",
                         ShiftRegistration.objects.filter(
                             state=ShiftRegistration.RegState.CHECKED_IN
-                        )
-                        .aggregate(sum=Sum("shift__duration"))["sum"]
-                        .total_seconds(),
+                        ).count(),
                     ),
                 )
             )