ClearableFileInput and "required" attritube at the Edit time

[moumoutte]

The ClearableFileInput at the edition time (when a file has already been uploaded), for files required , let the "required" attribute in the input. The consequence of this, the browser (like Chrome) didn't know a file has already been uploaded, a tooltip appears and the submission of the form is blocked.

The standard Django widget does not show the "required" attribute at any time

Django widget rendering at the creation time

<input id="id_file" name="file" type="file">

Django widget redering at the edit time, (with file in it)

   Currently: <a href="/my/file/931/">RICE.pdf</a> <br>Change: <input id="id_file" name="file" type="file">

Floppyform widget rendering at the creation time

<input type="file" name="file" required="" id="id_file" class="form-control">

Floppyform widget rendering at the edition time, with file already uploaded

<a target="blank" href="/my/file/931/">
 <span class="fa fa-file"> RICE.pdf </span>
</a>
<Change:

<input type="file" name="file" required="" id="id_file" class="form-control">

In the floppyform widget rendering, we clearly see the "required" attribute which does not appear on the Django widget rendering.

Workaround

To avoid this, I rewrite the widget, get_context method actually

     def get_context(self, name, value, attrs):
            ctx = super(MyClearableFileInput, self).get_context(name, value, attrs)
            if value:
                ctx['required'] = False
           return ctx

[michaelhjulskov]

I have simular issue with ImageField
#199

Do you think your "def get_context()" code can help me?

I've been thinking maybe to solve it using a jquery hack onload