Question

我正在构建一个文件上传页面，其中文件将以其名称中的不同前缀保存（get_file_path函数使用instance.mname），但将通过相同的上传模型/表单。我希望在mname ='prefix'中的表单视图中声明前缀。如何将此值从视图传递到表单？

谢谢！

models.py

class Upload(models.Model):

    mname = # need it to be passed
    document = models.FileField(upload_to=get_file_path, validators=[validate_file_extension])
    upload_date=models.DateTimeField(auto_now_add =True)

forms.py

class UploadForm(forms.ModelForm):
    class Meta:
        model = Upload
        fields = ('document',)

views.py

def uploadFile(request):
    if request.method == "POST":

        file = UploadForm(request.POST, request.FILES, mname='....')
        if file.is_valid():
           file.save()

Answer 1

您可以将参数添加到表单的__init__：

UploadForm(forms.Form):

    def __init__(self, path, *args, **kwargs):
        super(UploadForm, self).__init__(*args, **kwargs)
        self.fields['document'] = forms.FileField(upload_to=path, validators=[validate_file_extension])

使用此参数初始化表单：

file = UploadForm(request.POST, request.FILES, path='...')

将值传递给Django模型属性

1 个答案: