mongoose修饰符

• app.js

const UserModel = require("./model/user");
const NewsModel = require("./model/news");
const BannersModel = require("./model/banners");

// 新增轮播图
const banners = new BannersModel({
  title: "   程序员是吃青春饭的吗？    ",
  redirect: "http://www.google.com",
  name: "周杰伦"
});

console.log(banners.name);  // get修饰符只是在这里有用

banners.save(err => {
  if (err) {
    console.log(err);
    return;
  }
  console.log("数据新增成功");
  BannersModel.find({}, (err, docs) => {
    if (err) {
      console.log(err);
      return;
    }
    console.log(JSON.stringify(docs, null, 2));
  });
});

• model/banners.js

const mongoose = require("./db");

const BannersSchema = mongoose.Schema({
  title: {
    type: String,
    trim: true //预定义修饰符
  },
  name: {
    type: String,
    get(params) {
      // 自定义修饰符get（不建议使用）
      return `三年一班${params}`;
    }
  },
  redirect: {
    type: String,
    set(params) {
      // 自定义修饰符set
      if (params && !params.includes("http://")) {
        params = `http://${params}`;
      }
      return params;
    }
  },
  status: {
    type: Number,
    default: 1
  }
});

const BannersModel = mongoose.model("Banners", BannersSchema, "banners");

module.exports = BannersModel;