mongodb - 通过 mongoose 为 mongodb 中集合文档中的每个嵌套对象创建 ID

Question

我有一个用户模式。保存文档时，对于文档中的每个嵌套对象(quizHistory、记录和响应)，mongoose 会自动添加 _id 字段。 For ref- quizHistory path

const userSchema = new Schema({
    firstName: { type: String, required: true ,trim:true},
    lastName:{ type: String, required: true ,trim:true},
    email: { type: String, unique: true, required: true },
    isUser: { type: Boolean, default: true },
    password: String,
    quizHistory: [{
        quizId: { type: Schema.Types.ObjectId, ref: 'Quiz' },
        record: [{
            recordId:{ type: Number},
            startTime: { type: Date },
            responses: [{
                quesId: { type: Schema.Types.ObjectId, ref: 'Question' },
                answers: [Number]
            }],
            score: Number
        }],
        avgScore: Number
    }]
})

Answer 1

Mongoose 默认创建虚拟 ID(guide id)。将此行添加到您的架构中。

 _id : {id:false}