mmcgrana

For each Ruby module/class, we have Ruby methods on the left and the equivalent
Clojure functions and/or relevant notes are on the right.

For clojure functions, symbols indicate existing method definitions, in the 
clojure namespace if none is explicitly given.  clojure.contrib.*/* functions can
be obtained from http://github.com/kevinoneill/clojure-contrib/tree/master,
ruby-to-clojure.*/* functions can be obtained from the source files in this
gist.

If no method symbol is given, we use the following notation:

azisaka

# parse.rb

require 'rubygems'
require 'happymapper'
xml = File.read(File.expand_path(File.join(File.dirname(__FILE__), 'contact.xml')))

class Author
  include HappyMapper
  
  element :name, String

terrainoob

Given /^I visit subdomain (.+)$/ do |sub|
  host! "#{sub}.#{TEST_DOMAIN}"  #TEST_DOMAIN is defined in test.rb.  In my case TEST_DOMAIN = 'example.com'
end

ato

;; Inspired by George Jahad's version: http://georgejahad.com/clojure/debug-repl.html

(defmacro local-bindings
  "Produces a map of the names of local bindings to their values."
  []
  (let [symbols (map key @clojure.lang.Compiler/LOCAL_ENV)]
    (zipmap (map (fn [sym] `(quote ~sym)) symbols) symbols)))

(declare *locals*)
(defn eval-with-locals

ghoseb

;;
;; NS CHEATSHEET
;;
;; * :require makes functions available with a namespace prefix
;;  and optionally can refer functions to the current ns.
;;
;; * :import refers Java classes to the current namespace.
;;
;; * :refer-clojure affects availability of built-in (clojure.core)
;;   functions.

openfirmware

# Potential solution to "Using accepts_nested_attributes_for with a belongs_to association, and using find_or_create_by_attr behaviour"
# http://stackoverflow.com/questions/2970255/using-accepts-nested-attributes-for-with-a-belongs-to-association-and-using-find
class Upload < AR:B
  belongs_to :user
  belongs_to :observed_property
  belongs_to :sensor
  
  attr_accessor :observed_property_attributes,
                :sensor_attributes
  attr_accessible :observed_property_attributes,

pairing

# adapted from rspec-rails http://github.com/rspec/rspec-rails/blob/master/spec/rspec/rails/mocks/mock_model_spec.rb

shared_examples_for "ActiveModel" do
  require 'test/unit/assertions'
  require 'active_model/lint'
  include Test::Unit::Assertions
  include ActiveModel::Lint::Tests

  # to_s is to support ruby-1.9
  ActiveModel::Lint::Tests.public_instance_methods.map{|m| m.to_s}.grep(/^test/).each do |m|

MyArtChannel

# Add this to the end of your development.rb and add 
#
# gem 'pry'
#
# to your Gemfile and run bundle to install.

silence_warnings do
  begin
    require 'pry'
    IRB = Pry

jfeust

# NOTE: Prawn 1.0 now supports images in tables, and it works much better than my mock table below!



# As you may have noticed Prawn does not currently support images in table cells.  
# There is an unofficial fork with initial table image support but it appears that 
# it will be some time before this gets merged into the official branch.
#
# Instead of using an unofficial branch, I found a nice way to do a mock table with 
# image support.  You just need to keep track of your page breaks.

jjb

In my previous post I described how to securely acquire the Mozilla list of root certificates and convert them to a form usable by curl and various libraries which don't ship with them.

Next, I want to point Net:HTTP at this file library-wide, so that it is used by all invocations of methods accessing https resources (in particular, Kernel#open, which in ruby 1.8.7 does not have a ca_file option and is therefore unusable with https). I hunted around the ruby standard library for a couple hours and came up with this:

require 'open-uri'
require 'net/https'

module Net
 class HTTP