From 2e4d2b5d9dbf65151d860048998135618c2b8357 Mon Sep 17 00:00:00 2001
From: Dennis Krupenik <dennis@krupenik.com>
Date: Mon, 13 Apr 2009 01:45:00 +0300
Subject: [PATCH] Added :form_class option to UrlHelper#button_to

---
 actionpack/lib/action_view/helpers/url_helper.rb |    8 +++++++-
 actionpack/test/template/url_helper_test.rb      |    4 ++++
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/actionpack/lib/action_view/helpers/url_helper.rb b/actionpack/lib/action_view/helpers/url_helper.rb
index 36e0a78..e7641f5 100644
--- a/actionpack/lib/action_view/helpers/url_helper.rb
+++ b/actionpack/lib/action_view/helpers/url_helper.rb
@@ -267,6 +267,8 @@ module ActionView
       # * <tt>:confirm</tt> - This will add a JavaScript confirm
       #   prompt with the question specified. If the user accepts, the link is
       #   processed normally, otherwise no action is taken.
+      # * <tt>:form_class</tt> - Specifies the class of the generated form.
+      #   Defaults to "button-to".
       #
       # ==== Examples
       #   <%= button_to "New", :action => "new" %>
@@ -308,7 +310,11 @@ module ActionView
 
         html_options.merge!("type" => "submit", "value" => name)
 
-        "<form method=\"#{form_method}\" action=\"#{escape_once url}\" class=\"button-to\"><div>" +
+        unless form_class = html_options.delete("form_class")
+          form_class = "button-to"
+        end
+
+        "<form method=\"#{form_method}\" action=\"#{escape_once url}\" class=\"#{form_class}\"><div>" +
           method_tag + tag("input", html_options) + request_token_tag + "</div></form>"
       end
 
diff --git a/actionpack/test/template/url_helper_test.rb b/actionpack/test/template/url_helper_test.rb
index 5900709..590dcb9 100644
--- a/actionpack/test/template/url_helper_test.rb
+++ b/actionpack/test/template/url_helper_test.rb
@@ -87,6 +87,10 @@ class UrlHelperTest < ActionView::TestCase
       button_to("Hello", "http://www.example.com", :method => :get)
     )
   end
+  
+  def test_button_to_with_custom_form_class
+    assert_dom_equal "<form method=\"post\" action=\"http://www.example.com\" class=\"custom\"><div><input type=\"submit\" value=\"Hello\" /></div></form>", button_to("Hello", "http://www.example.com", :form_class => "custom")
+  end
 
   def test_link_tag_with_straight_url
     assert_dom_equal "<a href=\"http://www.example.com\">Hello</a>", link_to("Hello", "http://www.example.com")
-- 
1.6.2.2