node.js - Mongoose 多对多关系

Question

我是 Node.JS 和 Mongoose 初学者。到目前为止，我已经创建了一个非常简单的博客，包含 3 个模型 - 文章、用户、类别，一切工作正常。现在我想创建评论。所以我希望每个用户都能够有很多评论，每一篇文章也都能够有很多评论。我该如何做到这一点以及如何在 Controller 中表示逻辑以相互交互:

let articleSchema = mongoose.Schema (
{
    author: {type: ObjectId, ref: 'User'},
    title: {type: String, required: true },
    content: {type: String, required: true },
    category: {type: ObjectId, ref: 'Category', required: true},
    date: {type: Date, default: Date.now() },
}
);

let userSchema = mongoose.Schema(
{
    email: {type: String, required: true, unique: true},
    passwordHash: {type: String, required: true},
    fullName: {type: String, required: true},
    salt: {type: String, required: true},
    articles: [{type: ObjectId, ref: 'Article'}],
    roles: [{type: ObjectId, ref: 'Role'}]
}
);

let categorySchema = mongoose.Schema (
{
    name: {type: String, required:true},
    articles: [{type: ObjectId, ref: 'Article'}]
}
); 

Answer 1

创建引用作者和文章的评论架构:

let commenSchema = mongoose.Schema (
{
    author: {type: ObjectId, ref: 'User', required: true},
    content: {type: String, required: true },
    article: {type: ObjectId, ref: 'Article', required: true},
    date: {type: Date, default: Date.now() },
});