CSS tabs in RoR


#1

I’ve just implemented some CSS tabs into my application (from here:
http://labs.silverorange.com/archives/2004/may/updatedsimple), but to
display
properly it requires that at least one item in the list is rather
than a
normal link, which I managed using this helper from leapingfrogs.com:

def link_to_unless_current_with_current_class(*args)
link_to_unless_current(*args) {|name| “#{name}”}
end

(which goes in module ApplicationHelper, if you fancy trying this
yourself). It
works perfectly but when you move onto a subitem the rails helper acts
properly
and makes your menu tab back into a link, spoiling the formatting.

What I’m looking for is an easy means of keeping the link to the
controller as
text, regardless of which action is being accessed. I think this is
possible
using something like link_to_unless (:controller = current
controller…) but
I’m not sure of the formatting. Can anyone please help?

Thanks in advance.


#2

Ben wrote:

works perfectly but when you move onto a subitem the rails helper acts properly
and makes your menu tab back into a link, spoiling the formatting.

What I’m looking for is an easy means of keeping the link to the controller as
text, regardless of which action is being accessed. I think this is possible
using something like link_to_unless (:controller = current controller…) but
I’m not sure of the formatting. Can anyone please help?

Wow, thanks for the link to the tabs. I had some poor tabs before I saw
them.

Here’s how you can do this:

module ApplicationHelper

def link_to_unless_current_controller(controller_class, *args)
link_to_unless(controller.kind_of?(controller_class), *args) do
|name|
#{name}
end
end

end

In the view

<%

List of all the controllers here.

[ PostController,
AuthorController,
Admin::AuthorsController ].each do |c_class|
%>

  • <% c_human_name = c_class.name.demodulize[0..-11].underscore.humanize %> <%= link_to_unless_current_controller(c_class, c_human_name, { :controller => '/' + c_class.controller_path }) %>
  • <% end %>

    Regards,
    Blair


    Blair Z., Ph.D.
    removed_email_address@domain.invalid
    Subversion and Orca training and consulting
    http://www.orcaware.com/svn/


    #3

    Blair Z. <blair@…> writes:

                                         { :controller => '/' +
                                            c_class.controller_path }) %>
    
    <% end %>

    I’m incredibly grateful for your help, but I’m afraid I just
    can’t get the code working properly. It run without an error,
    but simply never produces a span instead of a link, so I guess
    the condition isn’t firing.

    Also, is there a way to test if something is a controller
    without needing the full controller name? What’s the simplest method
    of finding the current controller?

    Thanks again.


    #4

    What’s the error? You did change the list of controller classes, right?

    Yes, and there is no error!

    Regards,
    Blair

    The code works without an error, producing the tabs nicely, but it
    simply
    doesn’t produce the when on current controller - here’s an image
    (with
    message as the current
    controller, it should be plain text rather then still a link)
    http://img392.imageshack.us/img392/3634/tabs8mo.png

    Thanks again.


    #5

    Ben wrote:

    <% c_human_name = c_class.name.demodulize[0…-11].underscore.humanize %>
    but simply never produces a span instead of a link, so I guess
    the condition isn’t firing.

    What’s the error? You did change the list of controller classes, right?

    Also, is there a way to test if something is a controller
    without needing the full controller name? What’s the simplest method
    of finding the current controller?

    You can check if something is a controller via
    object.instance_of?(ApplicationController). But you should not need
    this, as
    you should know the class of your variables.

    The current controller is always in ‘controller’ in your views and
    actions.

    Regards,
    Blair


    #6

    Ben wrote:

    of finding the current controller?

    The code works without an error, producing the tabs nicely, but it simply
    doesn’t produce the when on current controller - here’s an image (with
    message as the current
    controller, it should be plain text rather then still a link)
    http://img392.imageshack.us/img392/3634/tabs8mo.png

    Do you mean the current action or current controller?

    In any case, here’s the code I used in the end. I removed the method I
    added to
    the helper, as the code was not needed here:

      <% [ PostController, Admin::AuthorsController ].each do |c_class| %>
    • <% c_human_name = c_class.name.demodulize[0..-11].underscore.humanize %> <% if controller.kind_of?(c_class) %> <% action_name = controller.action_name.to_sym %> <%= c_human_name %>
      • <% if [ :index, :list ].include?(action_name) %> List <% else %> <%= link_to 'List', :action => :list %> <% end %>
      • <% if :new == action_name %> New <% else %> <%= link_to 'New', :action => :new %> <% end %>
      <% else %> <%= link_to c_human_name, { :controller => '/' + c_class.controller_path } %> <% end %>
    • <% end %>

    Regards,
    Blair