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')

josevalim

# In your test_helper.rb
class ActiveRecord::Base
  mattr_accessor :shared_connection
  @@shared_connection = nil

  def self.connection
    @@shared_connection || retrieve_connection
  end
end

jimbojsb

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

saranyan

AUTHORIZATION : Bearer QkEAARgyi3MPFsmP8St6L2Yc07DkYKQRt5MNo/7caN75haGqDTFDNH/meyYIpKa19Qt1rw==
X_XC_MESSAGE_GUID : f72b7e90-f7ee-4964-901b-6e2427a7c680
X_XC_PUBLISHER : TUQAAXOrYY3iyGbbL6IvNPGWJMaw4CrLBE7QTXIUFuJgo6gBIWPrCwOkXfhMLTbOJXAepw==
X_XC_SCHEMA_URI : https://ocl.xcommercecloud.com/marketplace/profile/deleted/1.0.0
X_XC_SCHEMA_VERSION : 1.0.0
X_XC_TENANT_ID : VEkAAalGt+ye8hDbMXeh8BAquNa72oifsoQNEtjQ9mTzZ8czA7M0+AcJQvDVVsN51DUgNw==

ChuckJHardySnippets

class String
  def to_bool
    return true   if self == true   || self =~ (/(true|t|yes|y|1)$/i)
    return false  if self == false  || self.blank? || self =~ (/(false|f|no|n|0)$/i)
    raise ArgumentError.new("invalid value for Boolean: \"#{self}\"")
  end
end

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

cpjolicoeur

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

mikedijkstra

Makre sure your home directory does not have a space in it or gcc will crap itself

1. Download and install Xcode

2. Install Command Line Tools (Xcode > Preference > Downloads)

3. Install Homebrew[http://mxcl.github.com/homebrew/]

4. Install Git

$ brew install git

crowdmatt

{
"IAB1": "Arts & Entertainment",
"IAB1-1": "Books & Literature",
"IAB1-2": "Celebrity Fan/Gossip",
"IAB1-3": "Fine Art",
"IAB1-4": "Humor",
"IAB1-5": "Movies",
"IAB1-6": "Music",
"IAB1-7": "Television",
"IAB2": "Automotive",

Diasporism

Redis and Resque

What this guide will cover: the code you will need in order to include Redis and Resque in your Rails app, and the process of creating a background job with Resque.

What this guide will not cover: installing Ruby, Rails, or Redis.

Note: As of this writing I am still using Ruby 1.9.3p374, Rails 3.2.13, Redis 2.6.11, and Resque 1.24.1. I use SQLite in development and Postgres in production.

Background jobs are frustrating if you've never dealt with them before. Over the past few weeks I've had to incorporate Redis and Resque into my projects in various ways and every bit of progress I made was very painful. There are many 'gotchas' when it comes to background workers, and documentation tends to be outdated or scattered at best.