app.put('/login', function(req, res, next) {
pool.query('SELECT idperson, nickname, email, password FROM person WHERE email=? AND password=?', [req.body.email, req.body.password], function(err, rows, fields, next) {
if (err) return next(err);
if (!rows[0]) console.log('Неверные данные');
else {
req.session.idperson = rows[0].idperson;
req.session.nickname = rows[0].nickname;
}
res.redirect('back');
});
});