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module ActionController
  module RequestForgeryProtection

    def verify_authenticity_token
      verified_request? || handle_unverified_request
    end

    def handle_unverified_request
      reset_session
    end

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namespace :db do
  namespace :structure do
    desc "Dump the database structure to a SQL file"
    task :dump => :load_config do
      config = ActiveRecord::Base.configurations[Rails.env]

      command = "mysqldump -u #{config["username"]} #{config["database"]} --no-data --skip-comments --skip-add-drop-table > db/#{Rails.env}_structure.sql"
      puts "Running: #{command}"
      system command

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#
# Add a :processing flag to our model
#

class AddProcessingToImages < ActiveRecord::Migration
  def self.up
    add_column :images, :processing, :boolean
  end

  def self.down

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#Four Ways To Do Pub/Sub With jQuery 1.7 and jQuery UI (in the future)

Between jQuery 1.7 and some of work going into future versions of jQuery UI, there are a ton of hot new ways for you to get your publish/subscribe on. Here are just four of them, three of which are new.

(PS: If you're unfamiliar with pub/sub, read the guide to it that Julian Aubourg and I wrote here http://msdn.microsoft.com/en-us/scriptjunkie/hh201955.aspx)

##Option 1: Using jQuery 1.7's $.Callbacks() feature:

$.Callbacks are a multi-purpose callbacks list object which can be used as a base layer to build new functionality including simple publish/subscribe systems. We haven't yet released the API documentation for this feature just yet, but for more information on it (including lots of examples), see my post on $.Callbacks() here:

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Just install this in your apps like so:

gem 'test-spec-mini', :git => 'git://gist.github.com/1806986.git', :require => 'mini'

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# Example MySQL config file for small systems.
#
# This is for a system with little memory (<= 64M) where MySQL is only used
# from time to time and it's important that the mysqld daemon
# doesn't use much resources.
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:

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One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

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This plot might be suitable for showing cyclical trends, though I'm not sure it’s a great idea as the radial display has a number of limitations:

• The underlying data goes from Sunday to Saturday, but the chart shows continuity from Saturday through to the previous Sunday. Time does not flow backwards, so you might instead prefer to plot two values for Sunday; this would show a discontinuity on opposite sides of the Sunday axis.

• Displaying the discontinuity requires an open interpolator, rather than cardinal-closed as used here. However, this causes the tangents of the incoming and outgoing lines to no longer be orthogonal to the axis. To display the discontinuity properly, you’d need to write a custom interpolator to generate the correct tangents.

• Due to the interpolation taking place in Cartesian (rather than polar) coordinates, the intermediate values of the lines do not have the correct radial values: if you tried to measure t

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require './interface'
puts to_strings(->(limit) {
  ->(lst) {
    ->(f) {
      ->(f) {
        ->(g) {
          ->(n) {
            f.(g.(g)).(n)
          }
        }.(->(g) {

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# Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# By Peter Cooper
#
# MIT license
#
# * Not advised to use in your production environment! ;-)
# * Requires Ruby 1.9
# * Supports A and CNAME records
# * See http://www.ietf.org/rfc/rfc1035.txt for protocol guidance
# * All records get the same TTL