antonfefilov

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

antonfefilov

old_string = "312211"

counter = 1
new_string = ""

for index_of_char in 0..old_string.size-1 
  char = old_string[index_of_char]
   
  if old_string[index_of_char] == old_string[index_of_char+1]
   counter += 1

antonfefilov

class Seq
  def initialize(string)
    @string = string.to_s
  end
   
  def next
    @string = generate(@string)
    self
  end
  

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# config/unicorn.rb

worker_processes Integer(ENV['WEB_CONCURRENCY'] || 3)
timeout Integer(ENV['WEB_TIMEOUT'] || 15)
preload_app true

before_fork do |server, worker|

  Signal.trap 'TERM' do
    puts 'Unicorn master intercepting TERM and sending myself QUIT instead'

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sudo add-apt-repository ppa:pitti/postgresql
sudo apt-get update
sudo apt-get install postgresql-9.2 postgresql-server-dev-9.2 postgresql-contrib-9.2

sudo su -l postgres
psql -d template1 -p 5433
CREATE EXTENSION IF NOT EXISTS hstore;
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
service postgresql stop
/usr/lib/postgresql/9.2/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.2/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.2/main/ -O "-c config_file=/etc/postgresql/9.2/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"

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#install required packages
apt-get update
apt-get upgrade -y
apt-get install -y git curl build-essential libssl-dev libcurl4-openssl-dev nodejs

#install sqlite3 (optional)
apt-get install libsqlite3-dev sqlite3

#install postgres (optional)
sudo apt-get install postlibpq-dev

antonfefilov

Rails flash messages with AJAX requests

original: http://stackoverflow.com/a/10167659/656428

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#<Stripe::StripeObject id=sub_3Hg6e9n909QzDb 0x00000a> JSON: {
  "id": "sub_3Hg6e9n909QzDb",
  "plan": {
    "interval": "week",
    "name": "Team up",
    "amount": 100,
    "currency": "usd",
    "id": "team_up",
    "object": "plan",
    "livemode": false,

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# Bundler Integration
require "bundler/capistrano"

# Application Settings
set :application,   "yourapplicationname"
set :user,          "serveruser"
set :deploy_to,     "/home/#{user}/rails-applications/#{application}"
set :rails_env,     "production"
set :use_sudo,      false
set :keep_releases, 3

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# config/initializers/active_admin.rb

require 'active_admin_custom_filter'

ActiveAdmin.setup do |config|
  # ...
end