merb-to-rails3 is a gem which adds several methods from Merb's API to your Rails 3 app in order to ease updating existing Merb app to Rails.
Things covered:
Controller:
- redirect => redirect_to
- before => before_filter
- after => after_filter
Controller/View:
- url(name) => name_path
- resource(...) => ....._path
- submit => submit_tag
- css_include_tag => stylesheet_link_tag
- js_include_tag => javascript_include_tag
- throw_content(name) => content_for(name)
- partial => render :partial