I'm having issues getting the modern theme to work with django-tinymce. Both the simple and the advanced themes render correctly, but when I switch to the modern theme nothing renders and I get a 404 error for /static/tiny_mce/themes/modern/editor_template.js in the console
I am attempting to do all of this in the django admin. The error is coming from /static/tiny_mce/tiny_mce.js which is interesting because I don't have anything installed in that directory. I'm using /static/js/tinymce as my TINYMCE_JS_ROOT in settings.py. When switching between simple and advanced theme, everything works correctly.
I've tried to copy a version of editor_template.js in the exact location it's looking, but I still get the 404. It's like it wipes out /static/tiny_mce if it exists and replaces it with something, but I can't figure out how/where it's getting that from.
I'm using an install of TinyMCE 4.1.3 from http://www.tinymce.com/download/download.php and django 1.6.5
I've been struggling with TinyMCE recently, as well. I'm using TinyMCE v4 and Django 1.6. I went down the django-tinymce/django-flatpages-tinymce route because I had these working on another project. Some how it wasn't working for this new project. I did some research and decided to just go straight TinyMCE, no Django applications (eg, no django-tinymce or django-flatpages-tinymce).
This method cuts down on all configuration in Django, and it can be completely handled within the tinymce.init call. I found this much easier than dealing with Django's settings files, overriding models, etc. Just simply find the template you want TinyMCE to spice up and add the init call there.
The example here for full featured example really helped me:
http://www.tinymce.com/tryit/full.php
This use the modern theme...
I simply added this to whichever change_form.html template for whatever model I was needing the rich editor. For instance for flatpages:
admin/flatpages/flatpage/change_form.html
Or custom model in app:
admin/custom_app/model_name/change_form.html
I know this is exactly an answer to your question, but I think it's worth thinking about and might help you ultimately get what you need.
Also, I should note, it looks like only modern theme is available for TinyMCE v4:
http://www.tinymce.com/wiki.php/Tutorial:Migration_guide_from_3.x
