def invalidate_frontend_cache_for_blog_index_page(sender, instance, **kwargs):
"""Invalidate the frontend cache for the parent BlogIndexPage of a BlogPost."""
blog_post = instance
# Recommended way to get parent page from https://github.com/wagtail/wagtail/issues/2779#issuecomment-228472829
blog_index_page = blog_post.get_parent()
if blog_index_page:
purge_page_from_cache(blog_index_page)
def purge_related(instance):
global invalidation_map
instance_model = instance.__class__
if instance_model not in invalidation_map:
return
for related_page_model in invalidation_map[instance_model]:
for page in related_page_model.objects.live():
print("Purging {}".format(page))
purge_page_from_cache(page)
def page_published_signal_handler(instance, **kwargs):
purge_page_from_cache(instance)
def post_delete_signal_handler(instance, **kwargs):
purge_page_from_cache(instance)
def transform_party_page_changed(transform_party_page):
"""Purge parent page"""
parent_page = transform_party_page.get_parent()
purge_page_from_cache(parent_page)
def post_delete_signal_handler(instance, **kwargs):
purge_page_from_cache(instance)
