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Rails 3 ======= Using rails3? See https://github.com/shell/rails3_before_render BeforeRender ============ Add a hook like before_filter to your controllers that gets executed between when your action is completed and the template is rendered. It can really DRY up loading some data that is used for views (headers / layouts / etc). Provided methods: before_render / before_render_filter / append_before_render_filter (aliases) prepend_before_render_filter TODO ==== It doesn't have the skip_before_render_filter logic. ActionController::Filters::FilterChain encodes logic about the types of filters that exist all over the place where it could be more generic, maybe try to merge some of this back into rails core. Example ======= class MyController < ApplicationController before_render :load_header_image_based_on_hostname private def load_header_image_based_on_hostname @header_image = HeaderImage.src_for_request(request) end end # in the layout or view <img src="<%= @header_image %>" alt="header image" /> Copyright (c) 2009 [name of plugin creator], released under the MIT license