Made usable connections with alias not in db.connections

Author: akaariai

debug_toolbar/utils/tracking/db.py

@@ -88,6 +88,14 @@ def execute(self, sql, params=()):
         try:
             return self.cursor.execute(sql, params)
         finally:
+            # FIXME: Sometimes connections which are not in the connections
+            # dict are used (for example in test database destroying).
+            # The code below (at least get_transaction_id(alias) needs to have
+            # the connection in the connections dict. It would be good to
+            # not have this requirement at all, but for now lets just skip
+            # these connections.
+            if self.db.alias not in connections:
+                return
             stop = datetime.now()
             duration = ms_from_timedelta(stop - start)
             enable_stacktraces = getattr(settings,
@@ -119,7 +127,7 @@ def execute(self, sql, params=()):
             del cur_frame
 
             alias = getattr(self.db, 'alias', 'default')
-            conn = connections[alias].connection
+            conn = self.db.connection
             # HACK: avoid imports
             if conn:
                 engine = conn.__class__.__module__.split('.', 1)[0]