Rails - Oct 2008 - Issue with Routes

I want a form on my home page to be handled by a different controller
(buy_controller) but I''m having issues.  The code works fine when I
have the form under the "buy" views

I''m pretty new to Rails.  I''ve tried different ways of doing
this but
I can''t seem to figure it out.  The latest error is doesn''t
let me
load the home page.

Error
*************************************
ActionController::RoutingError in Home#index

Showing home/index.rhtml where line #42 raised:

buy_url failed to generate from
{:controller=>"buy", :action=>"search_for_product"},
expected:
{:controller=>"buy", :action=>"show"}, diff:
{:action=>"show"}

Extracted source (around line #42):

39: 							<div id="search">
40: 							  <h1 class="mh"><%= "Product Search".t
%></h1>
41: 							  <div id="search_field">
42: 							    <% form_for :buy, :url => buy_path(:action =>
''search_for_product''), :html => { :id =>
''search_form'' } do |form| %>
43:             			  <%= form.text_field :query, :size => 70 -%>
44:             			  <%= submit_tag "Search".t %>
45:             			  <img id=''query_indicator''
src=''/images/
live_tree_loading_spinner.gif'' style=''display:none;''
alt="loading" />


Here is my code:

routes.rb
*************************************
map.resources :buy


/home/index.rhtml
*************************************
<% form_for :buy, :url => buy_path(:action =>
''search_for_product''), :html => { :id =>
''search_form'' } do |form| %>
  <%= form.text_field :query, :size => 70 -%>
  <%= submit_tag "Search" %>
<% end %>

buy_controller
*************************************
def search_for_product
  if params[:buy][:query].blank?
    ...
  end
  if @fail
    flash[:error] = @err_msg
    redirect_to :back
  else
    respond_to do |format|
      format.html { render :template => ''buy/search'',
                          :layout => ''buy'' } # search.rhtm
    end
  end
end

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I finally figured out the problem.

I added a named route
map.buy_search ''/buy/search_for_product'', :controller =>
"buy", :action => ''search_for_product''

and changed /home/index.rhtml
*************************************
<% form_for :buy, :url => buy_search_path, :html => { :id =>
''search_form'' } do |form| %>
  <%= form.text_field :query, :size => 70 -%>
  <%= submit_tag "Search" %>
<% end %>

I really recommend using Railscasts (http://railscasts.com) by Ryan
Bates for anyone else that''s new to Rails.

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