最近在学express建站,写了一个电影网站的demo,遇到一点问题,百思不得其解,求大神指点.

问题描述:
在新增记录的时候,表单填写完成点击导入,请求发送出去了,但是它会一直请求,不会进入save回调,也没有报错.(这里进的是if中else部分的代码块)

 app.post('/admin/movie/new', function (res, req) {
    var id = res.body.movie._id;
    var movieObj = res.body.movie;
    var _movie;
    if (id !== 'undefined') {
        Movie.findById(id, function (err, movie) {
            if (err) {
                console.log(err);
            }

            _movie = _.extend(movie, movieObj);
            _movie.save(function (err, movie) {
                if (err) {
                    console.log(err);
                }

                res.redirect('/movie/' + movie._id);
            });
        });
    } else {
        _movie = new Movie({
            doctor: movieObj.doctor,
            title: movieObj.title,
            country: movieObj.country,
            language: movieObj.language,
            year: movieObj.year,
            poster: movieObj.poster,
            summary: movieObj.summary,
            flash: movieObj.flash
        });

        _movie.save(function (err, movie) {
            if (err) {
                console.log(err);
            }

            res.redirect('/movie/' + movie._id);
        });
    }
});

项目地址: https://github.com/xjchenhao/Learn/tree/master/nodejs/%E7%AB%99%E7%82%B9%E5%BB%BA%E8%AE%BE/imooc