Minor cleanup of infoscreen

infoscreen/views/public_views.py

@@ -2,6 +2,7 @@ from django.shortcuts import render
 from django.http import HttpResponse, JsonResponse, HttpResponseBadRequest
 from django.views.decorators.http import require_http_methods
 from django.conf import settings
+from django.db import DatabaseError
 
 from infoscreen.models import Rotation, InfoItem, InfoInstance
 from infoscreen.hsl_fetcher import fetch as hsl_fetch
@@ -23,7 +24,7 @@ def default(request, *args, **kwargs):
     """Try getting first rotation item."""
     try:
         first = Rotation.objects.all()[0].id
-    except:
+    except DatabaseError:
         first = 0
     return index(request, first, *args, **kwargs)