updated django-mptt enabled FilteredSelectMultiple m2m widget, Django 1.11 compatible
Small fix to make https://www.djangosnippets.org/snippets/1779/ compatible with Django 1.11 To use this you'll also need the javascript from https://www.djangosnippets.org/snippets/1780/ I added an overridden optgroups method that can handle the additional tuple and a couple minor things I gathered while investigating for a fix (a default level_indicator of "+--" and changed paths for the JS files. All credits goes to @anentropic :-)
- widget
- mptt