Multiple forms on one page validation problem

[BernhardBaumrock]

Version: ?.?.?

Bug Description

There are 2 problems with multiple forms on one page:

1. if both forms have a field with the same name the input id's will be identical resulting in 2 html elements having the same ID
2. validating checkboxes with the same name is not possible

Please see this forum post for screenshots and a screencast:
https://forum.nette.org/en/30969-multiple-forms-on-one-page-standalone-version#p198618

Expected Behavior

all fields should have unique names

[dg]

Give name to forms via $form = new Form('first'); and $form = new Form('second');

[BernhardBaumrock]

thx, sorry the code is misleading! I already did that. The issue that I reported occurs even when I give names to the forms! Please see the screencast in the linked post.

[dg]

I fixed it in code, but for back compatibility you have to set Nette\Forms\Controls\BaseControl::$idMask = 'frm-%2$s-%1$s'; in the beginning of the code.

[tvape]

It's funny. I try to upgrade from Nette 2.0 to 2.4 (using mostly forms only) and I am glad I waited so long, because I use multiple forms on one page and in Nette 2.0 it was already implemented - the $idMask then was "frm%s-%s". It means I have to use "frm%2$s-%1$s" today. And I am very happy, that it's working again as it IMHO always should be. The only difference is, that the default implementation now will create errors without manual changing the $idMask, because the $idMask is 'frm-%s'.