Small bugfix

tapebackup/views/copy_status.py

@@ -41,14 +41,14 @@ def copy_status(request):
         copied_wgs = request.dbsession.query(func.sum(models.FileToBackup.fsize).cast(BIGINT)).filter(
             and_(models.FileToBackup.is_file == True,
                  models.FileToBackup.kind == models.DataKind.wgs,
-                 models.FileToBackup.tape_label != None)).scalar()
+                 models.FileToBackup.tape_label != None)).scalar() or 0
         copied_wgs_archived = request.dbsession.query(func.sum(models.FileToBackup.fsize).cast(BIGINT)).filter(
             and_(models.FileToBackup.is_file == True,
                  models.FileToBackup.kind == models.DataKind.wgs,
                  models.FileToBackup.tape_label != None)).\
             join(models.Tape, models.FileToBackup.tape_label == models.Tape.label).filter(
             models.Tape.location != "Inside tape library"
-        ).scalar()
+        ).scalar() or 0
 
         copied_wgs_inside = request.dbsession.query(func.sum(models.FileToBackup.fsize).cast(BIGINT)).filter(
             and_(models.FileToBackup.is_file == True,
@@ -56,25 +56,25 @@ def copy_status(request):
                  models.FileToBackup.tape_label != None)).\
             join(models.Tape, models.FileToBackup.tape_label == models.Tape.label).filter(
             models.Tape.location == "Inside tape library"
-        ).scalar()
+        ).scalar() or 0
 
         copied_labnums_archived = request.dbsession.query(func.count(distinct(models.FileToBackup.labnum))).filter(
             models.FileToBackup.tape_label != None). \
             filter(models.FileToBackup.kind == models.DataKind.wgs). \
             join(models.Tape, models.FileToBackup.tape_label == models.Tape.label).filter(
             models.Tape.location != "Inside tape library"
-        ).scalar()
+        ).scalar() or 0
 
         copied_labnums_inside = request.dbsession.query(func.count(distinct(models.FileToBackup.labnum))).filter(
             models.FileToBackup.tape_label != None). \
             filter(models.FileToBackup.kind == models.DataKind.wgs).\
             join(models.Tape, models.FileToBackup.tape_label == models.Tape.label).filter(
             models.Tape.location == "Inside tape library"
-        ).scalar()
+        ).scalar() or 0
 
         copied_labnums = request.dbsession.query(func.count(distinct(models.FileToBackup.labnum))).filter(
             models.FileToBackup.tape_label != None).\
-            filter(models.FileToBackup.kind == models.DataKind.wgs).scalar()
+            filter(models.FileToBackup.kind == models.DataKind.wgs).scalar() or 0
 
     except SQLAlchemyError as e:
         return Response(json_body={"error": e._message()}, content_type='application/json', status=500)
@@ -124,4 +124,4 @@ def file_location(request):
 # batch info -- for batch id
 @view_config(route_name='batch_info', renderer='json', request_method='GET')
 def batch_info(request):
-    return
\ No newline at end of file
+    return