aliang

  $ cd /usr/src
  $ wget http://nginx.org/download/nginx-0.8.52.tar.gz
  $ tar xzvf ./nginx-0.8.52.tar.gz
  $ rm ./nginx-0.8.52.tar.gz

  $ gem install s3sync capistrano capistrano-ext passenger --no-ri --no-rdoc
  $ passenger-install-nginx-module
  # Automatically download and install Nginx?           2. No: I want to customize my Nginx installation
  # Where is your Nginx source code located?:           /usr/src/nginx-0.8.52
  # Where do you want to install Nginx to?:             /opt/nginx

aliang

# Knife Configuration File.
#
# This is a Ruby DSL to set configuration parameters for Knife's
# general options. The default location for this file is
# ~/.chef/knife.rb. If multiple Chef repositories are used,
# per-repository configuration files can be created. A per repository
# configuration file must be .chef/knife.rb in the base directory of
# the Chef repository. For example,
#
#     ~/Development/chef-repo/.chef/knife.rb

aliang

# .chef/knife.rb
# SEE: http://wiki.opscode.com/display/chef/Troubleshooting+and+Technical+FAQ
# set some sensible defaults
current_dir = File.dirname(__FILE__)
user        = ENV['OPSCODE_USER'] || ENV['USER']

log_level                :debug
log_location             STDOUT
node_name                `hostname`
client_key               ''

aliang

# Probably should investigate how to chain this with scopes
# Also assumes mongoid with a default _id field, and the order_by method

class MyModel
  def self.each_by_page(options = {})
    per = options[:per] || 25
    order_by = options[:order_by] || [:_id, 1]
    i = 1
    until (current_page = self.order_by(order_by).page(i).per(per)).empty?
      current_page.each do |obj|

aliang

<form>
  Name: <input type="text" name="name"/>
  Age: <input type="text" name="age"/>
  <input type="submit" value="Submit"></input>
</form>

aliang

class Class
  def publicize_methods
    @_saved_private_instance_methods = self.private_instance_methods
    self.class_eval { public *@_saved_private_instance_methods }
    if block_given?
      yield
      reprivatize_methods
    end
  end

aliang

var CountryCodes = (function() {
  // Codes taken from Wikipedia as of Wed Apr 16 2014
  var codes = {"AFG": "AF", "ALA": "AX", "ALB": "AL", "DZA": "DZ", "ASM": "AS", "AND": "AD", "AGO": "AO", "AIA": "AI", "ATA": "AQ", "ATG": "AG", "ARG": "AR", "ARM": "AM", "ABW": "AW", "AUS": "AU", "AUT": "AT", "AZE": "AZ", "BHS": "BS", "BHR": "BH", "BGD": "BD", "BRB": "BB", "BLR": "BY", "BEL": "BE", "BLZ": "BZ", "BEN": "BJ", "BMU": "BM", "BTN": "BT", "BOL": "BO", "BES": "BQ", "BIH": "BA", "BWA": "BW", "BVT": "BV", "BRA": "BR", "IOT": "IO", "BRN": "BN", "BGR": "BG", "BFA": "BF", "BDI": "BI", "KHM": "KH", "CMR": "CM", "CAN": "CA", "CPV": "CV", "CYM": "KY", "CAF": "CF", "TCD": "TD", "CHL": "CL", "CHN": "CN", "CXR": "CX", "CCK": "CC", "COL": "CO", "COM": "KM", "COG": "CG", "COD": "CD", "COK": "CK", "CRI": "CR", "CIV": "CI", "HRV": "HR", "CUB": "CU", "CUW": "CW", "CYP": "CY", "CZE": "CZ", "DNK": "DK", "DJI": "DJ", "DMA": "DM", "DOM": "DO", "ECU": "EC", "EGY": "EG", "SLV": "SV", "GNQ": "GQ", "ERI": "ER", "EST": "EE", "ETH": "ET",

aliang

class MandrillSignatureVerifier
  def initialize(key, url, params, signature)
    @key = key
    @url = url
    @params = params
    @signature = signature
  end

  # Return true if the signature matches
  def verified?

aliang

# See http://stackoverflow.com/questions/11007111/ruby-whats-an-elegant-way-to-pick-a-random-line-from-a-text-file
class IO
  # Selects a random "line" from a file (might not be a line if different separator is passed).
  # @param *args Same arguments as IO.foreach
  # @return A random line from the IO object
  def self.random_line(*args)
    chosen_line = nil
    self.foreach(*args).each_with_index do |line, number|
      chosen_line = line if rand < 1.0/(number+1)
    end

aliang

// Assumes your L.Map is called "map". Untested!
map.dragging.disable();
map.touchZoom.disable();
map.doubleClickZoom.disable();
map.scrollWheelZoom.disable();
map.boxZoom.disable();
map.keyboard.disable();
if (map.tap) {
  map.tap.disable();
}