Node.js与Sails~自定义响应体responses

/**
 * api/responses/myResponse.js
 *
 * This will be available in controllers as res.myResponse('foo');
 */

module.exports = function(message) {

    var req = this.req;
    var res = this.res;

    var viewFilePath = 'mySpecialView';
    var statusCode = 200;

    var result = {
        status: statusCode
    };

    // Optional message
    if (message) {
        result.message = message;
    }

    // If the user-agent wants a JSON response, send json
    if (req.wantsJSON) {
        return res.json(result, result.status);
    }

    // Set status code and view locals
    res.status(result.status);
    for (var key in result) {
        res.locals[key] = result[key];
    }
    // And render view
    res.render(viewFilePath, result, function (err) {
        // If the view doesn't exist, or an error occured, send json
        if (err) {
            return res.json(result, result.status);
        }

        // Otherwise, serve the `views/mySpecialView.*` page
        res.render(viewFilePath);
    });
};

module.exports={
    index: function (req, res){
        return res.view({title:"大叔",engTitle:"Lind"});
        //return res.view("view_name",data)//view_name参数为空表示用当前的action
    },
err:function(req,res){
    return res.myResponse({errCode:0,error:"产生错误"});
}

};