Structuring CFCs a Little Like Ruby http://www.chrisdpeters.com/structuring-cfcs-like-ruby/

Posts.cfc

<cfcomponent extends="Controller">
    <!------------------------------------->
    <!--- Public --->

    <cffunction name="init">
        <cfset filters(through="findPost", only="show,edit,update,destroy")>
    </cffunction>

    <cffunction name="show">
        <!--- ... --->
    </cffunction>

    <cffunction name="edit">
        <!--- ... --->
    </cffunction>

    <cffunction name="update">
        <!--- ... --->
    </cffunction>

    <cffunction name="destroy">
        <!--- ... --->
    </cffunction>

    <!------------------------------------->
    <!--- Private --->

    <cffunction name="findPost" access="private">
        <cfset post = model("post").findByKey(params.key)>
    </cffunction>
</cfcomponent>

posts_controller.rb

class PostsController < ApplicationController
    before_filter :find_post, :only => [:show, :edit, :update, :destroy]
 
    def show
        # ...
    end
 
    def edit
        # ...
    end
 
    def update
        # ...
    end
 
    def destroy
        # ...
    end
 
    private
 
    def find_post
        @post = Post.find(params[:id])
    end
end