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
30328	Integer field range validators crash when limit_value is callable.	Harro	Scott Fitsimones	"in #29860 for django 2.2 the option was added to pass in a callable.

I just upgraded to django 2.2 and found our custom max value validator for current year + 1 (which gave us a migration on the year change) and thought to replace it with the new mechanic.

The result was the following error:
{{{
  File ""<venv>/lib/python3.6/site-packages/django/db/models/fields/__init__.py"", line 1799, in <genexpr>
validator.limit_value <= max_value for validator in validators_)):
}}}

So the field wants to check that the validator's max (and min) value lie within range of the Integer field which is not possible with the callable.

The fix should be simple: Check if it's a callable and call it for the value. "	Bug	closed	Database layer (models, ORM)	2.2	Release blocker	fixed			Accepted	1	0	1	1	1	0