omgitsads

# Application
class App < Sinatra::Base
  set :hi, "Hello"
  
  configure :test do
    set :hi, "Hello There!"
  end
end

# Registering a extention

pietern

# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Update 7 Oct 2010:
# - This example does *not* appear to work with Chrome >=6.0. Apparently,
#   the WebSocket protocol implementation in the cramp gem does not work
#   well with Chrome's (newer) WebSocket implementation.
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby

kompozer

@interface UIImage (Shadow) 

+ (UIImage *)imageWithContentsOfFile:(NSString *)path withShadow:(BOOL)applyShadow;

+ (UIImage *)imageNamed:(NSString *)name withShadow:(BOOL)applyShadow;

+ (UIImage *)applyShadow:(UIImage *)theImage;

@end

ryanb

require "time"
require "date"

class Date
  def to_time
    Time.local(year, month, day)
  end
end

class Time

juliocesar

Testing front-end for a Sinatra app with RSpec and Capybara

I've used Cucumber quite a bit on my last job. It's an excellent tool, and I believe readable tests are the way to the future. But I could never get around to write effective scenarios, or maintain the boatload of text that the suite becomes once you get to a point where you have decent coverage. On top of that, it didn't seem to take much for the suite to become really slow as tests were added.

A while ago I've seen a gist by Lachie Cox where he shows how to use RSpec and Capybara to do front-end tests. That sounded perfect for me. I love RSpec, I can write my own matchers when I need them with little code, and it reads damn nicely.

So for my Rails Rumble 2010 project, as usual, I rolled a Sinatra app and figured I should give the idea a shot. Below are my findings.

Gemfile

superfeedr

require 'rubygems'
require 'superfeedr-rb' # [sudo] gem install 
require 'pp'

# Blather.logger.level = Logger::DEBUG # increase log level to see XMPP traffic

# Please make sure you use your own superfeedr credentials (http://superfeedr.com/subscriber) as this account is wiped out regularly.
Superfeedr::Client.connect('xxx@superfeedr.com', 'yyy') do |client|
  # Susbcribes to the feed :
  client.feed('http://superfeedr.com/track/music') do |status, entries|

robrasmussen

#! /usr/bin/env ruby

class AdditionProblemGenerator

  attr_accessor :max, :number_of_problems

  def initialize(max = 20, number_of_problems = 20)
    self.max = max
    self.number_of_problems = number_of_problems
  end

h3h

class Hash
  # Intersection on hash keys (and values) that actually returns a Hash.
  # The RHS can be an Array or a Hash.
  #
  # == Examples:
  #  >> hsh = {:banana => "elephant", :bar => "foo", :baz => "wuux"}
  #  >> hsh & [:bar]
  #  => {:bar=>"foo"}
  #
  #  >> hsh & {:bar => "foo", :baz => "wuux"}

stammy

module ApplicationHelper 
  # pretty page titles
  # yield_for(:title, 'default text goes here') in layout
  # content_for(:title, 'some text') in view
  def yield_for(content_sym, default)
    output = content_for(content_sym)
    output = default if output.blank?
    output
  end
end

mrflip

#
# When you're using inject with a hash or somesuch, you can subgroup the source's elements:
#
#                                                     v--- the parens part here
{ 1 => 2, 3 => 4, :your => :mom }.inject({}) do |h, (k,v)| 
  h[k] = v**2 if v.is_a?(Numeric) 
  h
end
# => {1=>4, 3=>16}