Rails - Jun 2008 - link_to_remote :with hash

I found myself doing a lot of long :with strings with link_to_remote
when passing multiple parameters from the page by dom ids.  This
strings are really easy to mess up so I added a behavior to
link_to_remote that allows me to pass a hash to the :with parameter
like this ->

link_to_remote "click me",
  :url => {:action => ''some_action''},
  :with => {:parameter => :some_dom_id,
    :another_parameter => :another_dom_id,
    "a[hash][parameter]" => :dom_id_3}

I added this to environment.rb

ActionView::Helpers::PrototypeHelper.class_eval do
  def link_to_remote_with_with_hash(text, args)
    if Hash == args[:with].class
      args[:with] = "''" << args[:with].collect{|var,
val|
          "#{var}='' +
encodeURIComponent($(''#{val}'').value)"
        }.inject{|str, el|
          str << " + ''&#{el}"
        }
    end
    link_to_remote_without_with_hash(text, args)
  end
  alias_method_chain :link_to_remote, :with_hash
end

Just thought I''d share it.
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Hi Julian,

That''s interesting.  You should do a write-up.  Maybe on the wiki, or
in a
blog.

Best regards,
Bill

julian wrote:
>
> I found myself doing a lot of long :with strings with
> link_to_remote when passing multiple parameters
> from the page by dom ids.  This strings are really easy
> to mess up so I added a behavior to link_to_remote
> that allows me to pass a hash to the :with parameter

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