nthj

def calculator(operator, expression, *exprs)
  exprs.each { |n| expression = expression.send(operator, n) }
  expression
end

nthj

 rails_admin do
    configure :expertise do
      bootstrap_wysihtml5 true
    end

    edit do
      group 'Login' do
        field :email
        field :password do
          visible false

nthj

How to setup Heroku Hostname SSL with GoDaddy SSL Certificate and Zerigo DNS
Heroku recently added an exciting new 'Hostname SSL' option.  This option offers the broad compatibility of IP-based SSL, but at 1/5 the price ($20 / month at the time of this writing).  
 
The following tutorial explains how to use Heroku's new 'Hostname SSL' option on your Heroku project.  Before we begin, let's list what we're using here:

    * Heroku Hostname SSL
    * GoDaddy Standard SSL Certificate
    * Zerigo DNS

Note: I am not using the Heroku Zerigo DNS add-on, instead I have a separate Zerigo account for my DNS needs.  I do this because Zerigo offers 30 hosts on free direct accounts, versus only 10 hosts on the free Heroku add-on.

nthj

def rpn expression
  stack = []

  expression.split(' ').each do |token|
    stack << if token =~ /\d/
      token
    else
      [stack.pop, stack.pop].map { |t| t.to_i }.inject do |sum, x|
        eval "#{x} #{token} #{sum}"
      end

nthj

# ASSUMPTIONS
# Assumes we respond_to #fee_schedule, which has various details, 
# like processor_rate, merchant_custom_handling_fee, or the like.  
module CalculatorDSL
  extend ActiveSupport::Concern

  included do
    singleton_class.send :alias_method, :method_missing, :define_method
  end

nthj

class StandardError
  # Accountant::CannotDestroyFinancialData = Class.new(Exception)
  # before_destroy(&Accountant::CannotDestroyFinancialData)
  def self.to_proc
    e = self; -> { raise e }
  end
end

nthj

# Throw this into config/initializers/cache.rb
if ARGV.any? { |a| %w(s server thin).include?(a) }
  puts "=> Initializing environment, clearing cache"
  Rails.cache.clear
end

nthj

namespace :paperclip do
  # Fix broken timestamps
  task :fix => :environment do
    # All user picture files in the production environment (directories[1])
    files = User.last.picture.send(:connection).directories[Rails.env.staging? ? 2 : 1].files.select do |file| 
      file.key.starts_with?('users/pictures')
    end.sort_by(&:last_modified)

    (0..300).each do |ranged|
      puts "Ranged: #{ranged}"

nthj

gem 'heroku'

nthj

#!/usr/bin/env ruby
# script/rails
# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.

# Automatically kill zombie Thin servers when booting up a rails server
if ENV['RACK_ENV'] == 'development' && pid = `ps -ef | grep thin | grep -v grep | sort -r | sed -n 2p | awk '{print $2}'`
  puts "=> Killing existing server with pid #{pid}"
  `kill -9 #{pid}`
end