ndarville

Business Models

Advertising

Models	Examples
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damien

module Concerns
  module MessagableWithData

    extend ActiveSupport::Concern

    included do

      Message.class_eval do
        has_many :message_data,
          class_name: MessageData,

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

myronmarston

# 1) Use VCR.use_cassette in your let block. This will use
# the cassette just for requests made by creating bar, not
# for anything else in your test.
let(:foo) { VCR.use_cassette("foo") { create(:bar) } }
it "uses foo" do
  foo
end

# 2) Wrap the it block that uses #foo in VCR.use_cassette.

gbissett

require 'sinatra'

CODE_PATH      = '/repo/lives/here'
RVM_COMMAND    = '[[ -s $HOME/.rvm/scripts/rvm ]] && source $HOME/.rvm/scripts/rvm'
UPDATE_COMMAND = 'git pull'
BUILD_COMMAND  = 'bundle && rake db:migrate && rake'

def log(message='')
  File.open('build.log', 'a') {|log| log.puts "#{Time.now.utc} #{message}" }
end

oodavid

Deploy your site with git

This gist assumes:

• you have a local git repo
• with an online remote repository (github / bitbucket etc)
• and a cloud server (Rackspace cloud / Amazon EC2 etc)
  • your (PHP) scripts are served from /var/www/html/
  • your webpages are executed by apache
• apache's home directory is /var/www/

amalagaura

# Remove everything from the index
git rm --cached -r .

# Re-add all the deleted files to the index
# You should get lots of messages like: "warning: CRLF will be replaced by LF in <file>."
git diff --cached --name-only -z | xargs -0 git add

# Commit
git commit -m "Fix CRLF"

cpatni

require 'sinatra'
require 'redis'
require 'json'
require 'date'

class String

  def &(str)
    result = ''
    result.force_encoding("BINARY")

gfontenot

def get_movie_duration video_file
	
  # Run ffmpeg on the video, and do it silently
  ffmpeg_output = `/usr/local/bin/ffmpeg -i "#{video_file}" 2>&1`
	
  # Find the duration in the output, and force a return if it's found
  /duration: ([0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{2})/i.match(ffmpeg_output) { |m| return m[1] }

  # If it didn't get a match, something is wrong. Log the error
  return "FFMPEG ERROR"

fnichol

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

Installation

The Ruby Way! (Fun)