Don't use ActionView::Helpers::InstanceTag.check_box_checked? anymore

[martijn]

Even though ActionView::Helpers::InstanceTag exists in Rails 4, the check_box_checked? method is gone, so the defined? check that was put in earlier did not have the desired effect.

I propose to always use our own boolean_checked? method since that works across all Rails versions.

This fixes the rendering of check boxes in Rails 4 (edge Rails).

[sobrinho]

Seems good.

@justinfrench ?

[justinfrench]

+1

[twalpole]

+1

[sobrinho]

Merged, thanks! ❤️

[twalpole]

@sobrinho - sorry I missed that this pull requests was into the rails4 branch -- the rails4 branch was merged into master a while ago and is out of date now -- we should probably just get rid of the rails4 branch since master passes all tests against rails4

[sobrinho]

@twalpole sorry, I didn't see this either.

@justinfrench can you make sure that the rails4 branch can be deleted?

[justinfrench]

@sobrinho @twalpole

$ git lg origin/master..origin/rails4
4eaeab1 Merge pull request #915 from bluerail/rails4
71a3bd2 Don't use ActionView::Helpers::InstanceTag.check_box_checked? anymore

Looks like it's only this PR in rails4 exclusively, so I've merged rails4 into master:

$ git co master
$ git merge rails4
Auto-merging lib/formtastic/inputs/boolean_input.rb
Merge made by the 'recursive' strategy.
 lib/formtastic/inputs/boolean_input.rb | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
$ git push

And I've burned the rails4 branch:

$ git branch -d rails4
Deleted branch rails4 (was 4eaeab1).
$ git push origin :rails4
To git@github.com:justinfrench/formtastic.git
 - [deleted]         rails4

Unsure if anything has to be done with CI, we'll see I guess :)