Rails - Aug 2009 - will_paginate: pagination links are wrong

I put everything in a pastie to make it a bit more readable:
http://pastie.org/593379

This is the gist:

Will_paginate doesn''t play quite nice. The first result set is fine,
and when I click on one of the paginated links, it returns the following
error:
Couldn''t find DictatedExam with ID=filter_widget
observe_field triggers filter_widget which calls the paginated search..
Which is then rendered in a partial.

Why do things simple when you can do it complicated, right ?
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Addendum:

This is what the links look like.
I have no idea what they''re -supposed- to look like.

http://localhost:3000/dictated_exams/filter_widget?page=4
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Aldric Giacomoni wrote:
> Addendum:
> 
> This is what the links look like.
> I have no idea what they''re -supposed- to look like.
> 
> http://localhost:3000/dictated_exams/filter_widget?page=4
Okay.. I figured this bit out:

Processing DictatedExamsController#show (for 127.0.0.1 t 2009-08-24 
14:54:09) [GET]
  Parameters: {"id"=>"filter_widget",
"page"=>"2"}
  DictatedExm Load (15.0ms)   SELECT * FROM "dictated_exms" WHERE 
("dictated_exms"."id" = 0)

ActiveRecord::RecordNotFound (Couldn''t find DictatedExam with 
ID=filter_widget):
  pp/controllers/dictated_exams_controller.rb:16:in `show''

So I''m giving the id of ''filter_widget''.. Why ?
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Okay!  I got the pagination links to work. Now I need them to display in 
the same div where the first results go, without reloading a page and 
discarding my layout.

I had to:
ROUTES.RB
map.resources :dictated_exams, :collection => {:filter_widget => :get}

_list.erb:
<%= will_paginate dictated_exams, :params => {:date => date} %>

index.html.erb, the observe_field:
:url  => {:action => ''filter_widget'', :controller =>
''dictated_exams'',
          :method => :post },

dictated_exams_controller.rb:
  def filter_widget
      @date ||= params[:date].to_date
      end_date = @date + 1.days
      dictated_exams = DictatedExam.search_one_day(@date, params[:page])
    render :partial => ''dictated_exams/list'' , :locals
=>
      { :dictated_exams => dictated_exams, :date => @date }
    end


Now to get the results to display where I want them to display...
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AND FIXED!
I followed http://jellofishi.com/blog/?cat=3

I created app/helpers/remote_link_renderer.rb

class RemoteLinkRenderer < WillPaginate::LinkRenderer
  def prepare(collection, options, template)
    @remote = options.delete(:remote) || {}
    super
  end

  protected
  def page_link(page, text, attributes = {})
    @template.link_to_remote(text, {:url => url_for(page), :method => 
:post}.merge(@remote))
  end
end

And then in the environment.rb I added, after the Initializer block:

require "will_paginate"
WillPaginate::ViewHelpers.pagination_options[:renderer] = 
''RemoteLinkRenderer''

My will_paginate has become:
<%= will_paginate dictated_exams,  :params => {:date => date },
    :remote => { :update => ''filter_counts''}  %>

And now it all works..
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