Added the first part of Simply Helpful to core. The rest is pending a clean integartion of polymorphic urls [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6633 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 12 insertions, 1 deletions

diff --git a/actionpack/lib/action_view/helpers/prototype_helper.rb b/actionpack/lib/action_view/helpers/prototype_helper.rb
index ed3f7b7d7f..9fa27d6386 100644
--- a/actionpack/lib/action_view/helpers/prototype_helper.rb
+++ b/actionpack/lib/action_view/helpers/prototype_helper.rb
@@ -384,8 +384,19 @@ module ActionView
           #   page['blank_slate']                  # => $('blank_slate');
           #   page['blank_slate'].show             # => $('blank_slate').show();
           #   page['blank_slate'].show('first').up # => $('blank_slate').show('first').up();
+          #
+          # You can also pass in a record, which will use ActionController::RecordIdentifier.dom_id to lookup
+          # the correct id:
+          #
+          #   page[@post]     # => $('post_45')
+          #   page[Post.new]  # => $('new_post')
           def [](id)
-            JavaScriptElementProxy.new(self, id)
+            case id
+              when String, Symbol, NilClass
+                JavaScriptElementProxy.new(self, id)
+              else
+                JavaScriptElementProxy.new(self, ActionController::RecordIdentifier.dom_id(id))
+            end
           end
           
           # Returns an object whose <tt>#to_json</tt> evaluates to +code+. Use this to pass a literal JavaScript