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
13071	NullBooleanField save error in Admin?	Ed Hagen	nobody	"I have a model field defined thus: 

{{{
benefit = models.NullBooleanField()
}}} 

In django 1.1 and 1.2 pre-alpha, nulls were displayed with a ""?"" icon 
in list view. In the Admin change form, a pop-up menu appeared with 3 
options (Unknown, Yes, No). Setting to ""Unknown"" and saving did not 
generate any errors. 

I then updated to django 1.2  beta 1 SVN-12738. Nulls are now 
displayed with ""(None)"". When I try and set this field to ""Unknown"" 
using the popup menu, and then save in the Admin, I get the following 
error: 

""This field cannot be blank."" 

I get this same error when I try and add a new record in the Admin. 

I am using python 2.5.1 on Mac OS X and sqlite3. "		closed	Contrib apps	1.2-beta		fixed			Accepted	0	0	0	0	0	0