fred

Credit Card Regex

• Amex Card: ^3[47][0-9]{13}$
• BCGlobal: ^(6541|6556)[0-9]{12}$
• Carte Blanche Card: ^389[0-9]{11}$
• Diners Club Card: ^3(?:0[0-5]|[68][0-9])[0-9]{11}$
• Discover Card: ^65[4-9][0-9]{13}|64[4-9][0-9]{13}|6011[0-9]{12}|(622(?:12[6-9]|1[3-9][0-9]|[2-8][0-9][0-9]|9[01][0-9]|92[0-5])[0-9]{10})$
• Insta Payment Card: ^63[7-9][0-9]{13}$
• JCB Card: ^(?:2131|1800|35\d{3})\d{11}$
• KoreanLocalCard: ^9[0-9]{15}$

fred

_bundler_complete()
{
    if [[ ! `which bundle` ]]; then
        return
    fi

    local cur prev commands
    commands="help install update package exec config check list show outdated console open viz init gem platform"
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

fred

namespace :workers do
  namespace :clockwork do
    desc "Stop clockwork"
    task :stop do
      on roles(:app) do
        within release_path do
          with rails_env: fetch(:rails_env) do
            execute :bundle, :exec, :clockworkd, "-c lib/clockwork.rb --pid-dir=#{cw_pid_dir} --log-dir=#{cw_log_dir} stop"
          end
        end

fred

• Zero downtime during upgrades and scaling out system (such as zero seconds downtime, while app still runs)

• Highly Scalable with Terabytes of data with high performance and low cost with shards

• Automatic Replica Set member take-over in case of failing primary, with automatic recovery for returning hosts.

• Automatic promotion to primary and de promotion for any member of a replica set based on performance and latency.

• Journaling, allows safe recovery in case of hard-disk failure.

• Strong consistency, "Afford to loose data" in mongoDB is myth. Data is not lost, it's only not persisted due to failures on the developers code.

• When Sharding is not feasible, different Documents (rails models) can be on different Replica sets (different database or set) altogether, since there are no joins in Mongo.

• Background indexes.

fred

## mysql::master
ruby_block "store_mysql_master_status" do
  block do
    node.set[:mysql][:master] = true
    m = Mysql.new("localhost", "root", node[:mysql][:server_root_password])
    m.query("show master status") do |row|
      row.each_hash do |h|
        node.set[:mysql][:master_file] = h['File']
        node.set[:mysql][:master_position] = h['Position']
      end

fred

#app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
  def opensearch
    response.headers['Content-Type'] = 'application/opensearchdescription+xml; charset=utf-8'
  end

fred

# app/models/post.rb

class Post
  
  searchable :auto_index => false, :auto_remove => false do
    text :title
    text :body
  end
  
  after_commit   :resque_solr_update

fred

# First configure your models to use Amazon s3 as storage option and setup the associated S3 config.
# Then add the classes your want to migrate in the klasses array below.
# Then run rake paperclip_migration:migrate_to_s3
# Should work but this is untested and may need some tweaking - but it did the job for me.

namespace :paperclip_migration do  
  desc "migrate files from filesystem to s3"
  task :migrate_to_s3 => :environment do
    klasses = [:model_1, :model_2] # Replace with your real model names. If anyone wants to this could be picked up from args or from configuration.
    klasses.each do |klass_key|