如何推入猫鼬子子文件数组？

Question

以下是我的架构：

new Schema({
    user: [{
        email: { type: String },
        contactList: [{
            frndemail: { type: String },
            msgList: [{
                from : String,
                to : String,
                content : String,
                time : String, 
                type: String,
                subtype : String,
                state: String
            }],
            unreadmsgList:[{
                from : String,
                to : String,
                content : String,
                time : String, 
                type: String,
                subtype : String,
                state: String
            }]      
        }]
    }]
});

在上述架构中，我试图在msgList中推送新消息，但是我的查询无法正常工作，我正在尝试如下操作：

MyModel.update({"user.email":"myemail@gmail.com","user.contactList.frndemail":"frndemail@gmail.com"}, {
                $push:{"user.$.contactList.$.msgList":{
                    "from": "myemail@gmail.com",
                    "to": "frndemail@gmail.com",
                    "content": "abc",
                    "time": "1:00 PM",
                    "type": "",
                    "subtype": "",
                    "state": ""
                }}
            },
        function(err,doc){
            if (err) {
                console.log("msg creation failed " +err);
            } else {
                console.log("msg created successfully "+doc);
            }
        });

如果有人为我更正此查询，请谢谢...