upgrade to operate in line with new Rails 3 helper blocks

[fastcatch]

modified code to operate in line with the new Rails3 helper block syntax and updated documentation

[vptcnt]

Hi Fastcatch,

I tried your fork and the example of SubNav is not working on Rails 3.2.3

Each time I call the sub_nav witha block, I have the following error :
(eval):1: syntax error, unexpected $undefined
$#<VincentHelper::Nav::S...
 ^

Extracted source (around line #19):

16: 
17: <% nav do |n|
18:   n.titi
19:   n.sub_nav do |s|
20:    s.toto
21:   end
22: end
23: %>

If there is no block for the method sub_nav, is working - no error but no display

The source code is :

module VincentHelper
  class Nav < BlockHelpers::Base
    #...code....
    def titi
      "titi"
    end

    class SubNav < BlockHelpers::Base
      #...code...
      def toto
        "toto"
      end
    end
  end

Thanks for your help

[fastcatch]

It seems that your code is missing a few "=" signs:

<%= nav do |n| %>
<%=    n.titi %>
<%=   n.sub_nav do |s| %>
<%=    s.toto %>
<%  end %>
<% end %>

works fine. It's not very convenient but that's as good as it gets.

If you want fewer '=' signs (and willing to go back to Rails 2.x output logic), redefine rails2_compatibility_mode to true and write:

<% nav do |n| %>
<%=    n.titi %>
<%   n.sub_nav do |s| %>
<%=    s.toto %>
<%  end %>
<% end %>

For the record I tested it on 3.0.7 and ruby 1.8.7 but it shouldn't make any difference.

[vptcnt]

Thanks

I put the =, but it's not working
I am using Rails 3.2.3 and ruby 1.9.3

(eval):1: syntax error, unexpected $undefined
$#<TestHelper::Nav::SubNav:0x3...
 ^

Extracted source (around line #3):

1: <%= nav do |h| %>
2:   <%= h.toto %>
3:   <%= h.sub_nav do |m| %>
4:         <%= m.titi %>
5:   <% end %>
6: <% end %>

The source code

module TestHelper

  class Nav < BlockHelpers::Base
    #...code....
    def toto
      "toto"
    end

    class SubNav < BlockHelpers::Base
      #...code...
      def titi
        "titi"
      end
    end
  end
end

If I DON'T call sub_nav with a block, like this :

<%= nav do |h| %>
  <%= h.toto %>
  <%= h.sub_nav %>
<% end %>

I have no error but it displays :

toto 
#<TestHelper::Nav::SubNav:0x375c480> 

[fastcatch]

Sorry to hear. I'll check with newer Rails and ruby when I get to it (perhaps 1-2 days), and I'll get back to you. (I guess it's gonna be the ruby for 1.9.x handles blocks a bit different from 1.8.x.)

[fastcatch]

It turns out that changes in Rails (ActiveSupport -- to be more precise) cause the breakdown. See this comment and this commit if interested. (I'm seriously surprised at how few projects/people have complained so far overall...) I seem to have got it fixed, though. Not pretty but does the job.

[vptcnt]

Thanks it's workiung !
Maybe it will be good to bump to a new version 0.3.4 or 0.4

One thing : For your version , I should put in my gemfile :

gem "block_helpers", :git => "git://github.com/fastcatch/block_helpers.git", :ref => "64a28acf0de4"