brianjlandau

module Enumerable
  def deep_freeze
    unless self.is_a? String
      frozen = self.dup.each do |key, value|
        if (value.is_a?(Enumerable) && !value.is_a?(String))
          value.deep_freeze
        else
          value.freeze
        end
      end

brianjlandau

A Costly Parade

by why the lucky stiff

Adam Wiggins: First, Rubyists love elegance.

Daniel Lyons:Every programmer worth a damn thinks they love elegance.

Rubyists love life. Boy, I tell you. They love humans. They love cars!! They looooooove dishes of real, actual food. You don’t even know. Airplanes in mid-air, refueling? They love that!

brianjlandau

Setup RSpec and Capybara on a new Rails engine

1. rails plugin new ENGINE_NAME --full --database=mysql

2. Add to gemspec:

s.add_development_dependency 'rspec-rails'
s.add_development_dependency 'shoulda-matchers'
s.add_development_dependency 'capybara'
s.add_development_dependency 'database_cleaner'

brianjlandau

module SoftDelete
  extend ActiveSupport::Concern
  
  included do
    define_model_callbacks :soft_delete
    define_model_callbacks :recover
    default_scope where(:deleted_at => nil)
    class_eval do
      class << self
        alias_method :with_deleted, :unscoped

brianjlandau

module ActionView
  module Helpers
    module OptimisticLockingFormFor
      
      def self.included(base)
        base.alias_method_chain :form_for, :optimistic_locking
      end
      
      def form_for_with_optimistic_locking(record_or_name_or_array, *args, &block)
        form_for_without_optimistic_locking(record_or_name_or_array, *args) do |form_with_locking|

brianjlandau

require 'resolv'

class EmailValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    if Resolv::DNS.new.getresources(value.split("@").last, Resolv::DNS::Resource::IN::MX).empty?
      record.errors[attribute] << (options[:message] ||  "does not have a valid domain")
    end
  rescue Resolv::ResolvError, Resolv::ResolvTimeout
    record.errors[attribute] << (options[:message] ||  "does not have a valid domain")
  end

brianjlandau

curl "https://formulae.brew.sh/api/analytics/install-on-request/homebrew-core/90d.json" | \
  jq ".formulae |
      to_entries | 
      sort_by([(.value[].count | gsub(\",\"; \"\") | tonumber)] | add) |
      reverse | 
      map({key: .key, value: ([(.value[].count | gsub(\",\"; \"\") | tonumber)] | add)})[0:500] | 
      from_entries" | \
  less

brianjlandau

# you'd obviously have more settings somewhere
set :scm,        :git
set :repository, "git@github.com:defunkt/github.git"
set :branch,     "origin/master"
set :migrate_target, :current # this tells capistrano where to run the migration. otherwise it would try to use the latest release directory (/path/to/app/releases/2012XXXXXXXXX)
set :use_sudo, false
set :ssh_options, {:forward_agent => true} # so you can checkout the git repo without giving the server access to the repo
set :rails_env, 'production'

# These are here to override the defaults by cap

brianjlandau

# Example usage:
#
#    PaperclipS3Migrator.new(
#      [User, BlogPost, Page],
#      ':attachment/:id/:style/:filename',
#      ':class/:id/:attachment/:style/:updated_at_:filename'
#    ).migrate
#
class PaperclipS3Migrator < Struct.new(:klasses, :old_path, :new_path)

brianjlandau

// based on methodology developed by PPK:
// http://www.quirksmode.org/blog/archives/2009/08/when_to_read_ou.html
(function($){
$.benchmark = function(times, result_selector, func){
  var startTime = new Date().getTime();
  
  while (times != 0){
    func();
    times--;
  }