数据库回滚错误捕捉

app/api/engine.py

@@ -108,6 +108,9 @@ class TAMP_SQL(object):
         try:
             self.session.commit()
         except:
-            self.session.rollback()
+            try:
+                self.session.rollback()
+             except:
+                pass
         finally:
             self.session.close()