update code

dao/builder.go

@@ -37,8 +37,6 @@ var (
 )
 
 func (s *Dao) HandleEvents(chain ChainInterface, logs []types.Log) error {
-	s.handleMux.Lock()
-	defer s.handleMux.Unlock()
 
 	cname := chain.Name()
 
@@ -61,7 +59,9 @@ func (s *Dao) HandleEvents(chain ChainInterface, logs []types.Log) error {
 		}
 		allLogs = append(allLogs, receipt.Logs...)
 	}
-
+	
+	s.handleMux.Lock()
+	defer s.handleMux.Unlock()
 	// begin orm transaction
 	//supportSession := s.SupportsTransactions()
 	var ctx context.Context = context.Background()