node.js – 继承Mongoose模式

Discriminators是架构继承机制.它们使您能够在同一个基础MongoDB集合之上拥有多个具有重叠模式的模型.而不是不同的文件.你似乎误解了猫鼬的辨别者.这篇文章可以帮助您正确捕捉它.

Guide to mongoose discriminators

以下是一些符合您要求的代码示例,将派生架构保存为单独的文档

function AbstractEntityscheR_754_11845@a() {   
    //call super        
    scheR_754_11845@a.apply(this,arguments);     
    //add                                     
    this.add({                              
        entityName: {type: String,required: falsE},timestamp: {type: Date,default: Date.Now},index: {type: number,objectID: {type: String},id: {type: String}
    });                                     
};
util.inherits(AbstractEntityscheR_754_11845@a,scheR_754_11845@a);

//message scheR_754_11845@a
var messagescheR_754_11845@a = new AbstractEntityscheR_754_11845@a();
messagescheR_754_11845@a.add({
    text: {type: String,required: truE},author: {type: String,type: {type: String,required: falsE}
});

//Room scheR_754_11845@a
var RoomscheR_754_11845@a = new AbstractEntityscheR_754_11845@a();
RoomscheR_754_11845@a.add({
    name: {type: String,messages : [messagescheR_754_11845@a],});

var message = mongoose.model('message',messagescheR_754_11845@a);
var Room = mongoose.model('Room',RoomscheR_754_11845@a);

// save data to message and Room

var amessage = new message({
     entityName: 'message',text: 'Hello',author: 'mmj',type: 'article'
    });

 var aRoom = new Room({
     entityName: 'room',name: 'Room1',type: 'article'
 });

 aRoom.save(function(err,myRoom) { 
    if (err)
        console.log(err);
    else                                  
        console.log("room is saved"); 
 });

 amessage.save(function(err) {
    if (err)
        console.log(err);
    else
        console.log('user is saved');
 });