Aerlinger

module FactoryGirl
  def self.find_or_create(resource_name, attributes = {}, &block)
    clazz = resource_name.to_s.classify.constantize

    model = clazz.find_by(attributes) || FactoryGirl.build(resource_name, attributes)

    yield(model) if block_given? && model.new_record?

    model.tap(&:save)
  end

mcshakes

$ rails c
Running via Spring preloader in process 7916
/Users/edmac/.rvm/gems/ruby-2.3.1/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:in `require': dlopen(/Users/edmac/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin14/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)
  Referenced from: /Users/edmac/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin14/readline.bundle
  Reason: image not found - /Users/edmac/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin14/readline.bundle
  
  
  Fixed with: 
  
  ln -s /usr/local/opt/readline/lib/libreadline.7.0.dylib /usr/local/opt/readline/lib/libreadline.6.dylib

henrik

class Luhn
  def self.checksum(number)
    digits = number.to_s.reverse.scan(/\d/).map { |x| x.to_i }
    digits = digits.each_with_index.map { |d, i|
      d *= 2 if i.even?
      d > 9 ? d - 9 : d
    }
    sum = digits.inject(0) { |m, x| m + x }
    mod = 10 - sum % 10
    mod==10 ? 0 : mod

cgoldberg

#!/bin/bash
# download and install latest geckodriver for linux or mac.
# required for selenium to drive a firefox browser.

install_dir="/usr/local/bin"
json=$(curl -s https://api.github.com/repos/mozilla/geckodriver/releases/latest)
if [[ $(uname) == "Darwin" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("macos"))')
elif [[ $(uname) == "Linux" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("linux64"))')

briankung

First, add pry-rails to your Gemfile:
https://github.com/rweng/pry-rails

gem 'pry-rails', group: :development

Then you'll want to rebuild your Docker container to install the gems

jsteiner

RSpec.configure do |config|
  config.before(:suite) do
    DatabaseCleaner.clean_with(:truncation)
  end

  config.before(:each) do
    DatabaseCleaner.strategy = :transaction
  end

  config.before(:each, js: true) do

syafiqfaiz

1. Change your database RDS instance security group to allow your machine to access it.
   • Add your ip to the security group to acces the instance via Postgres.
2. Make a copy of the database using pg_dump
   • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
   • you will be asked for postgressql password.
   • a dump file(.sql) will be created
3. Restore that dump file to your local database.
   • but you might need to drop the database and create it first
   • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>

• the database is restored

jonathanmoore

Share Counts

I have always struggled with getting all the various share buttons from Facebook, Twitter, Google Plus, Pinterest, etc to align correctly and to not look like a tacky explosion of buttons. Seeing a number of sites rolling their own share buttons with counts, for example The Next Web I decided to look into the various APIs on how to simply return the share count.

If you want to roll up all of these into a single jQuery plugin check out Sharrre

Many of these API calls and methods are undocumented, so anticipate that they will change in the future. Also, if you are planning on rolling these out across a site I would recommend creating a simple endpoint that periodically caches results from all of the APIs so that you are not overloading the services will requests.

Twitter

fbn4sc

git branch | grep -v "master\|develop" | xargs git branch -D

justjanne

Server Price Breakdown: DigitalOcean, Amazon AWS LightSail, Vultr, Linode, OVH, Hetzner, Scaleway/Online.net:

Permalink: git.io/vps

$5/mo

Provider	Type	RAM	Cores	Storage	Transfer	Network	Price