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
2674	[patch] entering an invalid day of month for DateField and DateTimeField fields results in NULL value	Gary Wilson <gary.wilson@…>	Adrian Holovaty	"If you try to enter a date where the day is out of range for the month, like `2006-11-31`, django will try to insert a NULL value for that field.  These dates get past the `isValidANSIDate` validator's regular expression.  Maybe it would be best to use another validator that uses datetime, as it knows that this is an invalid date...

{{{
#!python
>>> datetime.datetime(2006,11,31)
Traceback (most recent call last):
  File ""<stdin>"", line 1, in ?
ValueError: day is out of range for month
}}}

and `isValidANSIDate` could use a simpler regular expression that just checks for a `YYYY-MM-DD` format."	defect	closed	contrib.admin	dev	normal	fixed		gary.wilson@…	Unreviewed	1	0	0	0	0	0