如何确保对象在猫鼬模式中没有相同的两个元素？

Question

我正在制作以下猫鼬模式，我想确保没有对象具有相同的 autherFirstName 和 autherLastName。对象可能有一个共同点，但不会同时有两个

const authorShcema = new mongoose.Schema({
    autherFirstName: {type: String, minLength: 2, required: true},
    autherLastName: {type: String, minLength: 2, required: true},
    autjorDob: {type: Date, required: true},
    authorImage: {type: String},
    authorBooks: [{type: mongoose.Schema.Types.ObjectId, ref: "Book"}],     
});

Answer 1

https://mongoosejs.com/docs/2.7.x/docs/indexes.html

创建复合唯一索引

authorShcema.index({ autherFirstName: 1, autherLastName: 1 }, { unique: true });