Question

拥有一个从用户架构引用ObjectId的postSchema：

var postSchema = new Schema({
    text: { type: String, required: true, maxlength: 140 },
    _creator: { type: mongoose.Schema.ObjectId, ref: 'User', required: true },

});

在我的postController中，如何在创建新帖子时设置_creator属性？：

exports.postCreatePost = function(req, res, next) {
console.log(req.body);

var newPost = new Post({
    text: req.body.text,
    _creator: req.body.User._id // What is this supposed to be in order to reference User's ObjectId?
});

newPost.save(function(err, newPost) {
    res.status(200).json(newPost);
});
}

在尝试使用Postman为现有用户使用PostId发布此JSON时，错误地接收“位置30处的JSON中的意外字符串”错误：

{
    "text": "first test post"
    "_creator": "5a13b3c695fcb47ea5c71308"
}

Answer 1

这里你的postSchema应该是这样的，

var postSchema = new Schema({
    text: { type: String, required: true, maxlength: 140 },
    _creator: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true },
});

_creator属性的类型应为mongoose.Schema.Types.ObjectId

创建引用集合的ObjectId的文档

1 个答案: