zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

jcasimir

Transactions

As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.

Basics

All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.

Example

rtomayko

#!/usr/bin/env ruby
#/ Usage: <progname> [options]...
#/ How does this script make my life easier?
# ** Tip: use #/ lines to define the --help usage message.
$stderr.sync = true
require 'optparse'

# default options
flag    = false
option  = "default value"

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

bunnymatic

  # because i can never remember exactly how and when to use concat
  # when building content in helpers
  def nested_content
    content_tag 'div' do
      concat(content_tag 'span', 'span block')
      concat(tag 'br')
      concat(link_to 'root link', root_path)
      concat(tag 'br')
      concat(link_to('#') do
               concat(content_tag 'h2', 'Head \'em off')

sedm0784

g_LastCtrlKeyDownTime := 0
g_AbortSendEsc := false
g_ControlRepeatDetected := false

*CapsLock::
    if (g_ControlRepeatDetected)
    {
        return
    }

eendeego

#!/bin/bash

cd `dirname $0`

curl\
 --remote-name \
 --remote-header-name\
 http://www.topcoder.com/contest/arena/ContestAppletProd.jnlp

JAVAWS="/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/javaws"

nateware

#!/usr/bin/env python

# Compare a file on S3 to see if we have the latest version
# If not, upload it and invalidate CloudFront

import fnmatch
import os
import boto
import pprint
import re

Velrok

(def adjectives [
  "adorable"
  "adventurous"
  "aggressive"
  "alert"
  "attractive"
  "average"
  "beautiful"
  "blue-eyed "
  "bloody"

mmadson

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Stack;

final class Cell {

    final int col;
    final int row;