Django directory upload get sub-directory names

directory-upload, django, django-forms, file-upload, python

Solution

I believe this is how Django is implemented. Please refer to Django's Upload Handler doc.

It has its default upload handlers `MemoryFileUploadHandler` and `TemporaryFileUploadHandler`. Both of them are using the `UploadedFile` for handling the files, and it has a function `_set_name`, which takes the base name of the file.

Even there is a comment saying why it takes the basename:

def _set_name(self, name):
    # Sanitize the file name so that it can't be dangerous.
    if name is not None:
        # Just use the basename of the file -- anything else is dangerous.
        name = os.path.basename(name)

        # File names longer than 255 characters can cause problems on older OSes.
        if len(name) > 255:
            name, ext = os.path.splitext(name)
            ext = ext[:255]
            name = name[:255 - len(ext)] + ext

    self._name = name

But I think you can can write your own upload handler which doesn't take the basename and behaves as you want. Here is little info how you can write custom upload handler.

Then you need to define your handler in `FILE_UPLOAD_HANDLERS` setting.

EDIT Custom Upload Handlers with Django 3.1

Problem

I am writing a django app to upload a directory of files with forms. This is the form I am using which allows upload of directory: ``` class FileFieldForm(forms.Form): file_field = forms.FileField(widget=forms.ClearableFileInput(attrs= {'multiple': True, 'webkitdirectory': True, 'directory': True})) ``` This is the raw post payload: ``` ------WebKitFormBoundaryPbO3HkrKGbBwgD3sd1 Content-Disposition: form-data; name="csrfmiddlewaretoken" F575Bgl4U9dzgwePPeSW2ISZKk5c3CnRoqFasdasD0Hep6nD0LnAAObXbF92SUa96NbO2 ------WebKitFormBoundaryPbO3HkrKGbBwgDsd31 Content-Disposition: form-data; name="file_field"; filename="MainDir/SubDir1/1.jpg" Content-Type: image/jpeg ------WebKitFormBoundaryPbOasd3HkrKGbBwgD31 Content-Disposition: form-data; name="file_field"; filename="MainDir/SubDir2/2.jpg" Content-Type: image/jpeg ``` This is the view to handle form: ``` class FileFieldView(FormView): form_class = FileFieldForm template_name = 'upload.html' success_url = 'upload' def post(self, request, *args, **kwargs): form_class = self.get_form_class() form = self.get_form(form_class) files = request.FILES.getlist('file_field') if form.is_valid(): for f in files: pprint("Name of file is " + f._get_name() + ' ' + f.field_name, sys.stderr) new_file = FileModel(file=f) new_file.save() return self.form_valid(form) else: return self.form_invalid(form) ``` Problem is that name of file object in django is without sub-directory names. I am assuming one of the middleware handling request is parsing and removing subdirectory names from filename. Is there way I can get the original filename that has directory and sub-directory names?

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