avoid getting mails for get_object_or_404 failures

tournaments/views.py

@@ -69,6 +69,12 @@ from .models import AnimationType
 
 logger = logging.getLogger(__name__)
 
+def get_object(type, id):
+    try:
+        return type.objects.get(pk=id)
+    except (type.DoesNotExist, ValueError, ValidationError):
+        raise Http404(f"{type.__name__} does not exist")
+
 def index(request):
     now = timezone.now()
     thirty_days_ago = now - timedelta(days=30)
@@ -118,7 +124,7 @@ def tournaments_query(query, club_id, ascending, limit=None):
 
     club = None
     if club_id:
-        club = get_object_or_404(Club, pk=club_id)
+        club = get_object(Club, club_id)
         q_club = Q(event__club=club)
         queries.append(q_club)
     else: