epic_tags.py

from django import template

register = template.Library()

@register.assignment_tag(takes_context=True)
def get_page_extension(context):
    return context['current_page'].epicpageextension

@register.assignment_tag(takes_context=True)
def get_title_extension(context):
    return context['current_page']\
        .title_set.get(language=context['LANGUAGE_CODE']) \
        .epictitleextension