mongodb 怎么建立文章分类

Question

想弄个简单的文章发布系统，所有文章需要属于一个分类，求教数据库怎么设计，一级就够。新手刚学数据库这块。。

//文章模型

var mongoose  = require('mongoose');
var Schema    = mongoose.Schema;
var AticleSchema = new Schema({
  title: { type: String },
  author_id: { type: String},
  content:{type:String},
  create_at: { type: Date, default: Date.now },
  update_at: { type: Date, default: Date.now },

});
AticleSchema.index({title: 1}, {unique: true});
mongoose.model('Aticle', AticleSchema);

Answer 1

The simplest and crudest way is to create two schemas, one for articles and one for article classification, through table association.
1. Schema of classified documents

var mongoose  = require('mongoose');
var Schema    = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId; // 这个是关联的地方
var AticleCategorySchema = new Schema({
    name: String,    // 分类名字
    aticle:[{type:ObjectId,ref:'Aticle'}]    // 表关联
})

2. The schema of another article document is the same as the one you wrote yourself, with just a few modifications

var mongoose  = require('mongoose');
var Schema    = mongoose.Schema;
var ObjectId = Schema.Types.ObjectId;  // 这个是关联的地方

var AticleSchema = new Schema({
  title: { type: String },
  author_id: { type: String},
  content:{type:String},
  create_at: { type: Date, default: Date.now },
  update_at: { type: Date, default: Date.now },
  aticleCategory:{    // 关联表
        type:ObjectId,
        ref:'AticleCategory'
    },
});

Add the rest of the code your way.

Answer 2

How to create multiple categories and categories? How to do it