3、实现对user表中collects的收藏添加

1.实现电影收藏状态的切换
2.实现对user表collects的添加

// UserModel--user.js
const {mongodb,Schema} = require("./baseDB/db-movies");
const schema = new Schema({
     name:String,
     collects:Array
});
var UserModel = mongodb.model("user",schema,"user");
module.exports = UserModel;

//  movieCollect.js
const router = require("koa-router")();
const MovieModel = require("../../models/movie");
const userModel = require("../../models/user");
router.post("/api/collectMovie/:m",async ctx=>{
  // console.log(ctx.request.params); //获取动态路由传参
  var {m} = ctx.request.params;
  var {id,collected} = ctx.request.body;
  try{
    var data = await MovieModel(m).updateOne({_id:id},{$set:{collected}});
    if(data.nModified==0){
      throw new Error( `${m}这个传值不合法`)
    }else {
      //添加收藏到user表
      var item = await MovieModel(m).find({_id:id});
      await userModel.updateOne({},{$push:{collects:item[0]}});
    }
  }catch(err){
    ctx.body = {
      code:400,
      msg:"输入参数不合法"
    }
  }
})
module.exports = router;