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class ApplicationController < ActionController::Base
  # Catch all exceptions at a stretch
  rescue_from Exception, :with => :handle_exceptions

private

  # Handle exceptions
  def handle_exceptions(e)
    case e

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# config/routes.rb
resources :documents do
  scope module: 'documents' do
    resources :versions do
      post :restore, on: :member
    end

    resource :lock
  end
end

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require 'openssl'

class String
  def encrypt(key)
    cipher = OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').encrypt
    cipher.key = Digest::SHA1.hexdigest key
    s = cipher.update(self) + cipher.final

    s.unpack('H*')[0].upcase
  end

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class API::V1::BaseController < ApplicationController

  skip_before_filter :verify_authenticity_token

  before_filter :cors_preflight_check
  after_filter :cors_set_access_control_headers

  def cors_set_access_control_headers
    headers['Access-Control-Allow-Origin'] = '*'
    headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'

sshkarupa

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

• add_column
• add_index
• change_column
• change_table
• create_table
• drop_table

sshkarupa

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

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# Assumes the database container is named 'db'

DOCKER_DB_NAME="$(docker-compose ps -q db)"
DB_HOSTNAME=db
DB_USER=postgres
LOCAL_DUMP_PATH="path/to/local.dump"

docker-compose up -d db
docker exec -i "${DOCKER_DB_NAME}" pg_restore -C --clean --no-acl --no-owner -U "${DB_USER}" -d "${DB_HOSTNAME}" < "${LOCAL_DUMP_PATH}"
docker-compose stop db

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Backup:
docker exec -t -u postgres your-db-container pg_dumpall -c > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql

Restore:
cat your_dump.sql | docker exec -i your-db-container psql -Upostgres

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#!/usr/bin/env ruby

ADDED_OR_MODIFIED = /^\s*(A|AM|M)/.freeze

changed_files = `git status --porcelain`.split(/\n/)
unstaged_files = `git ls-files -m`.split(/\n/)

changed_files = changed_files.select { |f| f =~ ADDED_OR_MODIFIED }
changed_files = changed_files.map { |f| f.split(" ")[1] }

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#!/usr/bin/env ruby
#
# = Email Ping
#
# Check to see if an email address exists by looking up MX records and connecting
# to the address's home SMTP server. It then starts to send a message to the address
# but quits before the message is actually sent.

require 'resolv'
require 'net/smtp'