castro-raul

def select_from_chosen(item_text, options)
  field_id = find_field(options[:from])[:id]
  within "##{field_id}_chzn" do
    find('a.chzn-single').click
    input = find("div.chzn-search input").native
    input.send_keys(item_text)
    find('ul.chzn-results').click
    input.send_key(:arrow_down, :return)
    within 'a.chzn-single' do
      page.should have_content item_text

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

ryansobol

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

JamesDullaghan

Deploy Rails app to digitalocean with nginx, unicorn, capistrano & postgres

Create droplet of your liking (ubuntu 12.10 x32)

ssh to root in terminal with your server ip

ssh root@123.123.123.123

Add ssh fingerprint and enter password provided in email

DuoSRX

package main

import (
	"crypto/rand"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"github.com/garyburd/redigo/redis"
	"io"
	"time"

hopsoft

# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

jvenezia

Sizing your Rails application with Unicorn on Heroku

This tutorial assumes you are running a Rails application on Heroku with a Unicorn server. However, if you are not using one of those you will find some general information which can help you in your context.

This article will help you to correctly configure your Unicorn server based on real data.

I recommend you to use New Relic, which is really easy to setup with Rails & Heroku. It will help you monitoring your application and configure it at its best.

Using Unicorn Web Server

rameshkumarxyz

package main

import (
    "database/sql"
    "fmt"
    _ "github.com/lib/pq"
)

const (
    DB_USER     = "ramesh"

maxivak

Sending emails with ActionMailer and Sidekiq

Send email asynchroniously using Sidekiq.

ActionMailer

Create your mailer us usual:

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm