toggle the caption of a link

rubyonrails-talk
1

hi all,

I'm trying to toggle the caption of a link between show archive and hide archive? Everytime a user clicks the link the caption should change.

I tried but this simply doesn't work.

Someone can help me out?

Thanks Stijn

  <div id="show_archive">     <%= link_to_function "Show archive" do |page|         if page['show_archive'].value == "Show archive"           page['show_archive'].replace_html("Hide archive")         else           page['show_archive'].replace_html("Show archive")         end     end %>   </div>

2

Tarscher.

First off you should download and install Firebug for firefox to help you debug any javascript errors you may be having. http://getfirebug.com/

The problem you are having is because you are calling a non-existent method, value(), on the div element. There is also no RJS method called value: http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper/JavaScriptGenerator/GeneratorMethods.html

You should probably just use plain ol javascript for this one so you can check the current innerHTML of the div.

ie. if ($('show_archive').innerHTML == 'Show archive') { ... }

Or you could set some arbitrary attribute on the div and check it

ie... <div id='show_archive' expanded='true' %></div> if ($('show_archive').readAttribute('expanded') == 'true') { ... }

Cheers.

3

You might take a look at this:

http://wiki.rubyonrails.org/rails/pages/HowtoUseElement

Rick