Drew Hamlett drewhamlett

## foo_controller.rb
class FooController
  respond_to :csv

  def index
    @foos = Foo.scoped
    if stale?(:last_modified => Foo.something)
       respond_with @gta do |format|
         format.csv { stream_csv @foo }
       end
    end

## devise.rb
...
  # ==> Configuration for any authentication mechanism
  # Configure which keys are used when authenticating a user. The default is
  # just :email. You can configure it to use [:username, :subdomain], so for
  # authenticating a user, both parameters are required. Remember that those
  # parameters are used only when authenticating and not when retrieving from
  # session. If you need permissions, you should implement that in a before filter.
  # You can also supply a hash where the value is a boolean determining whether
  # or not authentication should be aborted when the value is not present.
  config.authentication_keys = [ :login ]

## index.html
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>Treemap</title>
    <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
    <script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js"></script>

	    <style type="text/css">

rect {
	class FooController
	respond_to :csv

	def index
	@foos = Foo.scoped
	if stale?(:last_modified => Foo.something)
	respond_with @gta do \|format\|
	format.csv { stream_csv @foo }
	end
	end
	...
	# ==> Configuration for any authentication mechanism
	# Configure which keys are used when authenticating a user. The default is
	# just :email. You can configure it to use [:username, :subdomain], so for
	# authenticating a user, both parameters are required. Remember that those
	# parameters are used only when authenticating and not when retrieving from
	# session. If you need permissions, you should implement that in a before filter.
	# You can also supply a hash where the value is a boolean determining whether
	# or not authentication should be aborted when the value is not present.
	config.authentication_keys = [ :login ]
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
	<title>Treemap</title>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js"></script>

	<style type="text/css">

	rect {