id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
19963	Add support for date_hierarchy across relations	jbg@…	Vytis Banaitis	"I'm not sure exactly when this changed, but I think it was in the last few weeks of development leading up to the 1.5 release.

`ModelAdmin.date_hierarchy` used to support fields on related models. For example, I have a model `Event` with a `day` field, which is a ForeignKey to `Day`, which in turn has a `date` field (of type DateField).

This used to work:

{{{
class EventAdmin(ModelAdmin):
    date_hierarchy = 'day__date'
}}}

Suddenly, as of a recent commit, it doesn't. This isn't addressed in the documentation in any way I can find."	New feature	closed	contrib.admin	dev	Normal	fixed		hugo@…	Accepted	1	0	0	0	0	0