Delete Listing

IN LISTING.JS

listingSchema.post("findOneAndDelete", async (listing) => {

  if (listing) {

    console.log("triggered");

    await Review.deleteMany({ _id: { $in: listing.reviews } });

  }

});

const Listing = mongoose.model("Listing", listingSchema); 

WHENEVER A LISTING IS DLETED IT TRIGGERS THE MIDDLEWARE AS THE LISTING IS DELETED BY findByIdAndDelete() IT TRIGGERS findOneAndDelete().

ALWAYS WRITE THE MIDDLEWARE ABOVE THE mongoose.model line

const Listing = mongoose.model("Listing", listingSchema); 

ELSE,THE MIDDLEWARE DOESNOT RUN.

APP.JS

app.delete(

  "/listings/:id",

  wrapAsync(async (req, res) => {

    let { id } = req.params;

    let deletedList = await Listing.findByIdAndDelete(id);

    console.log(deletedList);

    res.redirect("/listings");

  })

);

SO, WHENEVER A LISTING IS DELETED ALL ITS REVIEWS ARE ALSO DELETED.