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
7435	get_{next,previous}_by_someDateField() on unsaved objects should throw meaningfull error	Marc Fargas	Marc Fargas	"As stated on [http://groups.google.com/group/django-developers/browse_thread/thread/ea2040fde4c62c0f this thread] when you call self.get_{next,previous}_by_someDateField() on an unsaved object Django says something like:

    ""Cannot use None as a query""

The error could be something easier to understand like ""Cannot query over an unsaved object""."		closed	Core (Other)	dev		fixed			Ready for checkin	1	0	0	0	0	0