Rails: How To Modify Template Contents Before Rendering

Just a quick snippet to modify template contents before ActionView render them via ERB.


    ActionView::Base.class_eval do
      alias_method :action_view_render_template, :render_template
      def render_template(template_extension, template, file_path = nil, local_assigns = {})
        template ||= read_template_file(file_path, template_extension)
        template = "#{template}" # add your contents here.
        action_view_render_template(template_extension, template, file_path, local_assigns)
      end
    end

You can add this code to environment.rb, but is preferible a plugin.