# Add method to get all setters for a given object.  Useful when learning a poorly-documented library.
class Object
  def setters

# When prying into new libraries, I find this useful to quickly find out what top-level constants
# the given library introduces.
# 

# This is actually available as a gem: gem install rack-rewrite
# Full source code including tests is on github: http://github.com/jtrupiano/rack-rewrite
 

# Find all files > 1M in or beneath the current directory
find . -size +1M -printf "%-10s %p\n"

#!/bin/sh
# Author: John Trupiano
# Script to upgrade an REE installation on a hot server and maintain sane directory names

require 'mocha'
 
# Used such that the named_scope chain will return a count of 0 to allow us to test "empty" messages in views

1) Ensure apache is enabled
2) Edit /etc/apache2/users/<yourusername>.conf
  NameVirtualHost *:80

# Custom shoulda macro example -- validating POST data in a controller
 
# The macro -- note that it references a create_user() function.  This function is included beneath the macro

// My common scenario is that I need to compare a single Patient to a set of Donors, basically performing the equiavalent to Enumerable#all? in Ruby.
 
// To fully understand this example, realize that the NodeData object contains a single Patient and one or more Donors.  When looping, we're comparing one NodeData's Patient with a separate NodeData's list of Donors.

def flatten(lst: List[Any]): List[Any] = {
  lst match {
    case Nil => List[Any]()

def length(lst: List[Int]): Int = {
  lst match {
    case Nil => 0

def nth(n:Int, lst: List[Int]): Int = {
  if (n == 0) {
    return lst.head