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
22145	Clarify documentation on Field.blank and Field.null options	skipjack@…	nobody	"I find the documentation on the 'null' and 'blank' options for model fields do miss one point.

It is clearly stated that 'null' is for the database contraints and 'blank' is for the form validation (less clear though). While there are almost two paragraphs describing the correct setting for allowing empty string values (null=False, blank=True), it is not perfectly clear what setting is needed in order to deal with empty values for the remaining field types. 

I missed one sentence like ''for (almost?) all other field types you need to set both blank and null to True in order to allow for empty values in your model''.

Or am I missing something else? (I'm quite new to Django.)

For reference:

 * https://docs.djangoproject.com/en/dev/ref/models/fields/#null
 * https://docs.djangoproject.com/en/dev/ref/models/fields/#blank
"	Cleanup/optimization	closed	Documentation	dev	Normal	fixed			Accepted	1	0	0	0	1	0