extras.txt

/*-------------------------------------------EXTRAS-------------------------------------------------------------------*/

//Document Middleware to Embed users data into tour data
 PRE Document Middleware
 tourSchema.pre('save', async function(next) {
   const guidePromises = this.guides.map(async id => {
     return await UserModel.findById(id);
   });

   this.guides = await Promise.all(guidePromises);

   next();
 });

//POST Document Middleware
 tourSchema.post('save', function(doc, next) {
   console.log(doc);
   next();
 });

// Multer function to configure the desination and name of the file
 const multerStorage = multer.diskStorage({
   destination: (req, file, cb) => {
     cb(null, 'public/img/users');
   },
   filename: (req, file, cb) => {
     let fileName = `user-${req.user.id}-${Date.now()}.${file.mimetype.split('/')[1]}`;
     cb(null, fileName);
   },
 });