[patch] Form validator django.core.validators.RequiredIfOtherFieldsNotGiven does not exist

[matt.riggott@…]

Although the validator class RequiredIfOtherFieldsNotGiven is mentioned in the ​Form-fields and manipulators documentation, is doesn't actually exist in django.core.validators. The attached patch adds this class.

[matt.riggott@…]

Patch to add RequiredIfOtherFieldsNotGiven to django.core.validators

[alang@…]

Updated patches

[alang@…]

Attached updated patches against changeset 3445 (25-July-06)

Fixed:

RequiredIfOtherFieldsNotGiven - was documented but not implemented.
RequiredIfOtherFieldsGiven - was implemented but not documented.
RequiredIfOtherFieldGiven - was implemented but not documented.

Broke the compound conditions in the validators into separate if statements, because trying to figure out what anded nots in a loop were supposed to do was making my brain hurt.

Provided some doctests for these validators. (uploaded separately)

Finally, the documented behaviour of RequiredIfOtherFieldsNotGiven was a little odd. Whereas the validator used to require a value if any of the other fields was not given, it now requires a value only when none of the other fields is given. Since the validator was not implemented previously, this is not a breaking change.

[alang@…]

tests/othertests/validators.py

[Rudolph Froger]

The Django docs don't mention the current RequiredIfOtherFieldGiven and RequiredIfOtherFieldsGiven validators.

[Simon G. <dev@…>]

see also #3250

[Malcolm Tredinnick]

(In [5113]) Fixed up some omissions and one mysteriously documented, yet non-existent field
in the validator documentation. Patch from alang@…. Refs #2266.

[Malcolm Tredinnick]

The validator framework is deprecated functionality at this point, so we aren't adding any more features to it. What I've done is removed the documentation for the non-existed RequiredIfOtherFieldsNotGiven and merged in alang's documentation for RequiredIfOtherField[s]Given.