From 3108764367023aabaee04d1dbcbed8eb76e61184 Mon Sep 17 00:00:00 2001
From: Nicholas Seckar <nseckar@gmail.com>
Date: Tue, 6 Sep 2005 22:06:11 +0000
Subject: Fix overwrite params. Closes #1909

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2144 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/CHANGELOG                             |  2 ++
 actionpack/lib/action_controller/url_rewriter.rb |  4 ++++
 actionpack/test/controller/url_rewriter_tests.rb | 10 ++++++++++
 3 files changed, 16 insertions(+)

diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index 636479c3e5..ae4da0c2f3 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Fixed overwrite_params
+
 * Added ActionController::Base.benchmark and ActionController::Base.silence to allow for easy benchmarking and turning off the log
 
 * Updated vendor copy of html-scanner to support better xml parsing
diff --git a/actionpack/lib/action_controller/url_rewriter.rb b/actionpack/lib/action_controller/url_rewriter.rb
index 7d66cf1ced..acad0b7b8c 100644
--- a/actionpack/lib/action_controller/url_rewriter.rb
+++ b/actionpack/lib/action_controller/url_rewriter.rb
@@ -36,6 +36,10 @@ module ActionController
       def rewrite_path(options)
         options = options.symbolize_keys
         options.update(options[:params].symbolize_keys) if options[:params]
+        if (overwrite = options.delete(:overwrite_params))
+          options.update(@parameters)
+          options.update(overwrite)
+        end
         RESERVED_OPTIONS.each {|k| options.delete k}
         path, extra_keys = Routing::Routes.generate(options.dup, @request) # Warning: Routes will mutate and violate the options hash
 
diff --git a/actionpack/test/controller/url_rewriter_tests.rb b/actionpack/test/controller/url_rewriter_tests.rb
index 392024f03d..af26c2dcf5 100644
--- a/actionpack/test/controller/url_rewriter_tests.rb
+++ b/actionpack/test/controller/url_rewriter_tests.rb
@@ -23,5 +23,15 @@ class UrlRewriterTests < Test::Unit::TestCase
   def test_escape_spaces_build_query_string_selected_keys
     assert_equal '?x=hello+world', @rewriter.send(:build_query_string, {:x => 'hello world', :y => 'goodbye world'}, [:x])
   end
+
+  def test_overwrite_params
+    @params[:controller] = 'hi'
+    @params[:action] = 'bye'
+    @params[:id] = '2'
+
+    assert_equal '/hi/hi/2', @rewriter.rewrite(:only_path => true, :overwrite_params => {:action => 'hi'})
+    u = @rewriter.rewrite(:only_path => false, :overwrite_params => {:action => 'hi'})
+    assert_match %r(/hi/hi/2$), u
+  end
   
 end
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