This plugin makes the "ancestors" method available to the @page object in your Comatose layouts. This does not allow access to the method via the CMS administrative area, as that would potentially give content managers access to pages above that which they are permitted.
@page.ancestors.reverse.collect {|crumb| link_to crumb.title, crumb.link }.join(' > ')
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Comatose requires Acts as Tree, so those will obviously be required.
script/plugin install git://github.com/baldwindavid/comatose_ancestors.git
Copyright (c) 2009 David Baldwin (github.com/baldwindavid)