router.post('/register', function(req, res) {
  var name = req.body.name;
  var email = req.body.email;
  var username = req.body.username;
  var password = req.body.password;
  var password2 = req.body.password2;

  req.checkBody('username', 'Veuillez renseigner un identifiant').notEmpty();
  req.checkBody('email', 'Veuillez renseigner une adresse email valide').isEmail();
  req.checkBody('password', 'Veuillez renseigner un mot de passe').notEmpty();
  req.checkBody('password2', 'Les mots de passe ne correspondent pas').equals(req.body.password);

  var errors = req.validationErrors();

  if(errors) {
    res.render('register', {errors:errors});
  } else {
    User.findOne({ email: email }).then(user => {
      if (user) {
        req.flash('error_msg','EMAIL ALREADY IN DB');
        res.render('register', {errors:errors});
  } else {
    var newUser = new User({
      email: email,
      username: username,
      password: password
    });
      User.createUser(newUser, (err,user) => {
        if(err) throw err;
        console.log(user)
      })
      req.flash('success_msg','u can now log u account is created')
      res.redirect('/users/login')
      }
    });
  }
});