Use a param to trigger export rather than a separate action

In site/_resize.html.erb and site/_search.html.erb, a
params[:action] conditional is used to include code that
should only run on the index action -- but it should be run
on the export action too. Cleanest fix is to eliminate that
action entirely.

app/controllers/site_controller.rb

@@ -6,10 +6,6 @@ class SiteController < ApplicationController
   before_filter :set_locale
   before_filter :require_user, :only => [:edit]
 
-  def export
-    render :action => 'index'
-  end
-
   def permalink
     lon, lat, zoom = ShortLink::decode(params[:code])
     new_params = params.clone

app/views/site/index.html.erb

@@ -291,7 +291,7 @@ end
       e.preventDefault();
     });
 
-    <% if params[:action] == 'export' -%>
+    <% if params[:export] -%>
     $("#exportanchor").click();
     <% end -%>
 

config/routes.rb

@@ -102,7 +102,7 @@ OpenStreetMap::Application.routes.draw do
   match '/copyright' => 'site#copyright', :via => :get
   match '/history' => 'changeset#list', :via => :get
   match '/history/feed' => 'changeset#feed', :via => :get, :format => :atom
-  match '/export' => 'site#export', :via => :get
+  match '/export' => 'site#index', :export => true, :via => :get
   match '/login' => 'user#login', :via => [:get, :post]
   match '/logout' => 'user#logout', :via => [:get, :post]
   match '/offline' => 'site#offline', :via => :get

test/functional/site_controller_test.rb

@@ -36,10 +36,10 @@ class SiteControllerTest < ActionController::TestCase
     )
     assert_routing(
       { :path => "/export", :method => :get },
-      { :controller => "site", :action => "export" }
+      { :controller => "site", :action => "index", :export => true }
     )
     assert_recognizes(
-      { :controller => "site", :action => "export", :format => "html" },
+      { :controller => "site", :action => "index", :export => true, :format => "html" },
       { :path => "/export.html", :method => :get }
     )
     assert_routing(
@@ -76,14 +76,6 @@ class SiteControllerTest < ActionController::TestCase
     assert_redirected_to :controller => :user, :action => 'login', :referer => "/edit"
   end
   
-  # Get the export page
-  def test_export
-    get :export
-    assert_response :success
-    assert_template 'index'
-    assert_site_partials
-  end
-  
   # Offline page
   def test_offline
     get :offline