Question

我创建了一个这样的对象：

var TodoItem = mongoose.model('TodoItem',
new mongoose.Schema({
    title: String,
    description: String
}));


var n = new TodoItem();
n.description = req.body.description;
n.title = req.body.title;
n.done = false;
n.save(function (err, todoitem) {

     //todoitem._id does not work, I have to do todoitem._doc._id
}

为什么我不能直接在todoitem上访问保存对象？

Answer 1

当mongoose返回对象时，它具有一些其他丰富的属性。在创建模式时使用选项toJSON / toObject或使用下面的代码：

回答1

var omitPrivate = function(doc, item) {
    delete item.id;
    delete item.__v;
    return item;
};

// options
var options = {
    toJSON: {
        virtuals: true,
        transform: omitPrivate
    },
    toObject: {
        virtuals: true,
        transform: omitPrivate
    }
};
    var TodoItem = mongoose.model('TodoItem',
    new mongoose.Schema({
        title: String,
        description: String
    },options));

var n = new TodoItem();

    n.description = req.body.description;
    n.title = req.body.title;
    n.done = false;
    n.save(function (err, todoitem) {
    console.log(todoitem.toJSON());     

})

回答2

  var n = new TodoItem();
        n.description = req.body.description;
        n.title = req.body.title;
        n.done = false;
        n.save(function (err, todoitem) {
        todoitem = JSON.parse(JSON.stringify(todoitem));
        console.log(todoitem._id);

        })

无法从mongodb检索保存对象

1 个答案: