remove empty public lists

oml/settings.py

@@ -90,11 +90,9 @@ USER_AGENT = 'OpenMediaLibrary/%s' % VERSION
 DEBUG_HTTP = server.get('debug_http', False)
 DEBUG_API = server.get('debug_api', False)
 
-DB_VERSION = 13
-
-
 FULLTEXT_SUPPORT = fulltext.platform_supported()
 
 if not FULLTEXT_SUPPORT:
     config['itemKeys'] = [k for k in config['itemKeys'] if k['id'] != 'fulltext']
 
+DB_VERSION = 14

oml/update.py

@@ -617,3 +617,11 @@ def migrate_13():
             if revision > -1:
                 settings.server['revision'] = revision
     return 13
+
+def migrate_14():
+    from user.models import List
+    with db.session():
+        l = List.get(':Public')
+        if l and not len(l.items):
+            l.remove()
+    return 14