GusGA

Keybase proof

I hereby claim:

• I am gusga on github.
• I am gusga (https://keybase.io/gusga) on keybase.
• I have a public key whose fingerprint is 6541 70EF DC04 1CD3 43F3 E3C5 5F45 CBE5 C936 3153

To claim this, I am signing this object:

GusGA

#!/bin/bash

while :
do
 clear
 date +"%A %B %d, %Y at %T"
 lines=`tput lines`
 lines=`expr $lines - 5`
 git --no-pager log --color --all --pretty='format:%C(auto)%d%Creset %C(yellow)%h%Creset %C(green)%an%Creset - %s - %C(cyan)%cr%Creset' --graph $* | head -n $lines
 sleep 1

GusGA

#!/usr/bin/env ruby

# Libraries:::::::::::::::::::::::::::::::::::::::::::::::::::::::
require 'rubygems'
require 'sinatra/base'
require 'slim'
require 'sass'
require 'coffee-script'

# Application:::::::::::::::::::::::::::::::::::::::::::::::::::

GusGA

#!bin/bash

if [ -z "$1" ]; then
    echo "Debes ingresar el nombre del proyecto o directorio"
    exit 1
else
    if  [ -e "$1" ]; then
        echo "El Directorio $1 ya existe"
        exit 1
    fi

GusGA

# Tell system when Xcode utilities live:
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

# Set "opendiff" as the default mergetool globally:
git config --global merge.tool opendiff

GusGA

require 'bundler/capistrano'

set :application, "net"
set :repository,  "[email protected]:net.git"

set :scm, :git

set :default_environment, {
  'PATH' => "$HOME/.rbenv/shims:$HOME/.rbenv/bin:$PATH"
}

GusGA

morse_dict = Hash.new({
	"a" => ".-",
	"b" => "-...",
	"c" => "-.-.",
	"d" => "-..",
	"e" => ".",
	"f" => "..-.",
	"g" => "--.",
	"h" => "....",
	"i" => "..",

GusGA

Transactions

As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.

Basics

All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.

Example

GusGA

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 [email protected]

Add ssh fingerprint and enter password provided in email

GusGA

DigitalOcean Ubuntu 14.04 x64 + Rails 4 + Nginx + Unicorn + PostgreSQL + Capistrano 3

Create a Droplet

SSH into Root

$ ssh [email protected]

Change Root Password