Can't override primary button's classes

[ttanimichi]

Hi,

Primary button classes aren't overridden when you pass classes as the option.

= post.primary 'create', class: 'btn btn-primary disabled' # disabled class is ignored!!

That's becase Hash#merge use other_hash's value.

options = { class: 'btn btn-primary disabled ' }
options.merge! class: 'btn btn-primary' #=> {:class=>"btn btn-primary"}

ActiveSupport's reverse_merge takes care of this problem.

options = { class: 'btn btn-primary disabled ' }
options.reverse_merge! class: 'btn btn-primary' #=> {:class=>"btn btn-primary disabled"}

Thanks.

[potenza]

@ttanimichi Sorry for the delay! Thanks!