Resolve "extend worker class"

Closes #183 (closed)

smash/web/api_views/daily_planning.py

@@ -8,6 +8,7 @@ from django.http import JsonResponse
 from django.shortcuts import get_object_or_404
 
 from web.models import Appointment, AppointmentTypeLink, Worker, Availability, Holiday
+from web.models.worker_study_role import WORKER_STAFF
 from web.views import e500_error
 from web.views.notifications import get_filter_locations
 
@@ -300,9 +301,9 @@ def events(request, date):
 
 
 def get_workers_for_daily_planning(request):
-    result = Worker.objects.filter(locations__in=get_filter_locations(request.user)). \
-        filter(user__is_active=True).exclude(
-        role=Worker.ROLE_CHOICES_SECRETARY).distinct()
+    result = Worker.get_workers_by_worker_type(WORKER_STAFF).filter(
+        locations__in=get_filter_locations(request.user)).filter(
+        user__is_active=True).distinct()
     return result