public JsonNetResult ValidateCustomRuleSyntax(int modelID, string customRule)
        {
            var sp = new StandardParser();
            var cs = new ConfiguratorSession(null, null, null);

            try
            {
                sp.ParseString(ref cs, customRule);
            }
            catch
            {
                return new JsonNetResult { Data = false };
            }

            return new JsonNetResult { Data = true };
        }