如何在 ModelFormSet 中预填充 exclude 字段。下面的 AuthorFormSet 在这里没有使用 instance 参数，只有 queryset。那么我如何强制进入的空表单不具有 NULL/None user 属性。我希望能够将该用户字段设置为 request.user

模型.py

class Author(models.Model): 
    user = models.ForeignKey(User, related_name='author') 
    # assume some other fields here, but not relevant to the discussion. 

表单.py

 class AuthorForm(forms.ModelForm): 
     class Meta: 
         model = Author 
 
 class BaseAuthorFormSet(BaseModelFormSet): 
     """will do some clean() here""" 
     pass 
 
 AuthorFormSet = modelformset_factory(Author,\ 
                                    form=AuthorForm, \ 
                                    formset=BaseAuthorFormSet, extra=1,\ 
                                    exclude=('user',) 
                                    ) 

View .py

def my_view(request): 
    if request.method == 'POST': 
        formset = AuthorFormSet(request.POST) 
        if form.is_valid():  
            form.save() # This will cause problems 
                        # for the empty form i added, 
                       # since user can't  be null. 

编辑

这就是我最终所做的事情。 Wogan 的回答部分正确，我认为它只是缺少对所有表单部分的迭代。

for form in formset.forms:  
    form.instance.user = request.user 
formset.save() 

请您参考如下方法:

您可以排除模型表单中的字段，然后这些字段将从 modelformset_factory 创建的表单集中排除。

class AuthorForm(forms.ModelForm): 
    class Meta: 
        model = Author 
        exclude = ('user',) 

在您的 View 中，将 commit=False 传递给表单的 save() 方法，然后手动设置用户字段:

def my_view(request): 
    if request.method == 'POST': 
        formset = AuthorFormSet(request.POST) 
        if formset.is_valid():  
            for author in formset.save(commit=False): 
                author.user = request.user 
                author.save() 
            formset.save_m2m() # if your model has many to many relationships you need to call this