Django多个模型，一种形式

我有一个这样的模型：

class Movie(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(max_length=200)
    user = models.ForeignKey(User)
    created_on = models.DateTimeField(default=datetime.datetime.now())

    class Meta:
        ordering = ['-title']

    def __unicode__(self):
        return self.title

class MovieScreener(models.Model):
    screener_asset = models.FileField(upload_to='movies/screeners/')
    movie = models.ForeignKey(Movie)

class MovieTrailer(models.Model):
    trailer_asset = models.FileField(upload_to='movies/trailers/', blank=True, null=True)
    description = models.TextField()
    movie = models.ForeignKey(Movie)

class MoviePoster(models.Model):
    poster_asset = models.FileField(upload_to='movies/posters/', blank=True, null=True)
    movie = models.ForeignKey(Movie)

class MovieForm(forms.ModelForm):
    class Meta:
        model = Movie
        exclude = ('user','created_on')

class MovieScreenerForm(forms.ModelForm): 
    class Meta:
        model = MovieScreener
        exclude = ('movie',)

class MovieTrailerForm(forms.ModelForm):
    class Meta:
        model = MovieTrailer
        exclude = ('movie',)

class MoviePosterForm(forms.ModelForm): 
     class Meta:
        model = MoviePoster
        exclude = ('movie',)

我的表格是这样的：

class Movie(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(max_length=200)
    user = models.ForeignKey(User)
    created_on = models.DateTimeField(default=datetime.datetime.now())

    class Meta:
        ordering = ['-title']

    def __unicode__(self):
        return self.title

class MovieScreener(models.Model):
    screener_asset = models.FileField(upload_to='movies/screeners/')
    movie = models.ForeignKey(Movie)

class MovieTrailer(models.Model):
    trailer_asset = models.FileField(upload_to='movies/trailers/', blank=True, null=True)
    description = models.TextField()
    movie = models.ForeignKey(Movie)

class MoviePoster(models.Model):
    poster_asset = models.FileField(upload_to='movies/posters/', blank=True, null=True)
    movie = models.ForeignKey(Movie)

class MovieForm(forms.ModelForm):
    class Meta:
        model = Movie
        exclude = ('user','created_on')

class MovieScreenerForm(forms.ModelForm): 
    class Meta:
        model = MovieScreener
        exclude = ('movie',)

class MovieTrailerForm(forms.ModelForm):
    class Meta:
        model = MovieTrailer
        exclude = ('movie',)

class MoviePosterForm(forms.ModelForm): 
     class Meta:
        model = MoviePoster
        exclude = ('movie',)

这里是my views.py（这就是它看起来丑陋的地方）

My views.py似乎非常重复，这是正确的方法还是有更好的方法

谢谢

---

J

您可以做的一件事是，在初始化表单时，通过将其作为参数传入，将模型表单上需要电影实例的设置从视图移动到表单本身。下面是一个实现的示例，但这可能会被制作成一个其他人可以继承的基表单类，从而避免了您需要在每个实现中单独进行重写。这些代码都没有经过测试，我只是想大声说出来

class MovieScreenerForm(forms.ModelForm): 
    class Meta:
        model = MovieScreener
        exclude = ('movie',)

    def __init__(self, movie, *args, **kwargs):
        super(MovieScreen, self).__init__(*args, **kwargs)
        self.movie = movie

    def save(self, commit=True):
        instance = super(MovieScreenerForm, self).save(commit=False)
        instance.move = self.movie
        instance.save()

---

在定义模型或表单方面，我真的想不出一种方法，但是你可以用下面的方法减少一些行

mfs = [movie_screener_form, movie_trailer_form, movie_poster_form]

for mf in mfs:
    mf.save(commit=False)
    mf.instance.movie = movie
    mf.save()

---

如果我正确理解了您的设计，那么：

• 每部电影都有一个编剧
• 电影从来没有一个以上的编剧
• 电影可能有预告片
• 电影从来没有超过一个预告片
• 电影可能有海报
• 电影从来没有超过一张海报

是这样吗

如果我的假设是正确的，那么你可以得到电影模型上的所有字段。（预告片和海报已经可以为空，因此它们是可选的）。所以你只需要一个模型和一个表单