I was changing prototype to jsquery in my Rails app. To make my AJAX+RJS stuff work I tried jrails gem. For some reason AJAX responses were rendedered to whole page, instead of evaluating the returned JS. So i did the hack. I took this piece of jrails and put it in my /lib folder.


module ActionView
module Helpers
module PrototypeHelper
class JavaScriptGenerator
module GeneratorMethods
unless const_defined? :JQUERY_VAR
JQUERY_VAR = 'jQuery'
end

def insert_html(position, id, *options_for_render)
insertion = position.to_s.downcase
insertion = 'append' if insertion == 'bottom'
insertion = 'prepend' if insertion == 'top'
call "#{JQUERY_VAR}(\"#{jquery_id(id)}\").#{insertion}", render(*options_for_render)
end

def replace_html(id, *options_for_render)
insert_html(:html, id, *options_for_render)
end

def replace(id, *options_for_render)
call "#{JQUERY_VAR}(\"#{jquery_id(id)}\").replaceWith", render(*options_for_render)
end

def remove(*ids)
call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").remove"
end

def show(*ids)
call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").show"
end

def hide(*ids)
call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").hide"
end

def toggle(*ids)
call "#{JQUERY_VAR}(\"#{jquery_ids(ids)}\").toggle"
end

def jquery_id(id)
id.to_s.count('#.*,>+~:[/ ') == 0 ? "##{id}" : id
end

def jquery_ids(ids)
Array(ids).map{|id| jquery_id(id)}.join(',')
end

end
end
end
end
end


Read more: http://feeds.dzone.com/~r/dzone/snippets/~3/PNuDw6HdzKs/13129