twitter_bootstrap_fields_for not working

[amisarca]

When trying to do twitter_bootstrap_fields_for, and then call new_form.inputs, this error is shown "undefined method `inputs' for #<ActionView::Helpers::FormBuilder"

[amisarca]

I discovered the issue. The signature of the fields_for method is

def fields_for(record_name, record_object = nil, options = {}, &block)

But the call in form_helpers.rb is

send method, record, *(args << options), &block

So, the options hash, which contains the :builder key that defines the builder, is sent as the second parameter, not the third. And this is why the builder does not change.

[stouset]

The fields_for method in TwitterBootstrapFormFor::FormHelpers is defined as

define_method "twitter_bootstrap_#{method}" do |record, *args, &block|

The call works as expected: the record is passed as the first parameter, and the options hash is pulled out of *args, modified, and re-added. Can you please make a minimal example case of this bug?

[amisarca]

<%= twitter_bootstrap_fields_for @user do |user_form| %>
  <%= user_form.inputs 'Sign Up', :class => 'sign_up' do %>

And the error is

undefined method `inputs' for #<ActionView::Helpers::FormBuilder:0xa969c68>

Also

<%= twitter_bootstrap_fields_for @user, nil do |user_form| %>
  <%= user_form.inputs 'Sign Up', :class => 'sign_up' do %>

works fine. So, if the second argument is omitted, the options argument is sent as the second argument, and it is not recognized. I think that before calling the send method, it should be checked if the method is field_for, and the number of arguments is 0, and in this case a nil argument should be added