RESTRUCTURING REVIEWS

 HERE WE MERGE THE PARENT AND CHILD ROUTE TO PASS THE PARAMETERS TO THE CHILD ROUTE.

PARENT ROUTE IS :

app.use("/listings/:id/reviews", reviews);

CHILD ROUTE IS:

router.delete(

  "/:reviewId",

  wrapAsync(async (req, res) => {

REVIEWS.JS

const express = require("express");

const router = express.Router({ mergeParams: true });

const wrapAsync = require("../utils/wrapAsync.js");

const ExpressError = require("../utils/ExpressError.js");

const { listingSchema, reviewSchema } = require("../schema.js");

const Review = require("../models/review.js");

const Listing = require("../models/listing.js");

const ValidateReview = (req, res, next) => {

  let { error } = reviewSchema.validate(req.body);

  if (error) {

    let errMsg = error.details.map((el) => el.message).join(",");

    throw new ExpressError(400, errMsg);

  } else {

    next();

  }

};

// REVIEWS

router.post(

  "/",

  ValidateReview,

  wrapAsync(async (req, res) => {

    let { id } = req.params;

    let listing = await Listing.findById(id);

    let newRev = new Review(req.body.review);

    console.log(newRev);

    await newRev.save();

    listing.reviews.push(newRev);

    await listing.save();

    console.log("review saved");

    res.redirect(`/listings/${id}`);

  })

);

// DELETE REVIEW

router.delete(

  "/:reviewId",

  wrapAsync(async (req, res) => {

    let { id, reviewId } = req.params;

    await Listing.findByIdAndUpdate(id, { $pull: { reviews: reviewId } });

    await Review.findByIdAndDelete(reviewId);

    res.redirect(`/listings/${id}`);

  })

);

module.exports=router;

APP.JS

const reviews = require("./routes/reviews.js");

app.use("/listings/:id/reviews", reviews);