Display modeltranslation fields as tabs using crispy-forms.

forms.py

from django import forms
from django.conf import settings

from crispy_forms.bootstrap import Tab, TabHolder
from modeltranslation.fields import TranslationField

class DefaultForm(forms.ModelForm):
    
    def get_fields(self):
        fields = self.fields.keys()
        for field in self.Meta.model._meta.fields:
            if isinstance(field, TranslationField):
                original_field = '_'.join(field.name.split("_")[:-1])
                if original_field in fields:
                    fields.remove(original_field)
                    tabs = []
                    for lang in settings.LANGUAGES:
                        translation_field = '{0}_{1}'.format(original_field, lang[0])
                        tabs.append(Tab(lang[0], translation_field, css_id='tab_{0}'.format(translation_field)))
                        fields.remove(translation_field)
                    fields.append(TabHolder(*tuple(tabs)))
        return fields