ipoval

module HttpAuthentication
  module Basic
    def authenticate_or_request_with_http_basic(realm = 'Application')
      authenticate_with_http_basic || request_http_basic_authentication(realm)
    end

    def authenticate_with_http_basic
      if auth_str = request.env['HTTP_AUTHORIZATION']
        return 'login:password' == ActiveSupport::Base64.decode64(auth_str.sub(/^Basic\s+/, ''))
      end

ipoval

Overload your ORM safely or Black magic of metaprogramming
==========================================================

Introduction
------------

Ruby provides the great set of metaprogramming features.
Metaprogramming is a bit like magic, which makes something astonishing possible.
But there are two kinds of magic: white magic, which does good things, and black magic, which can do nasty things.
And unfortunately sometimes it is so easy to fall into the dark side of metaprogramming.

ipoval

# http://hyperpolyglot.org/scripting

$? # global Process::Status object; system('date'); $?.exitstatus;

$ ruby -cw filename.rb # checks the code in the file for syntax errors
$ ruby -e '1/0'        # one-liner ruby executable

`gem environment gemdir`

ipoval

# Docs
http://redis.io
http://www.infoq.com/presentations/newport-evolving-key-value-programming-model
http://rediscookbook.org
http://www.paperplanes.de/2010/2/16/a_collection_of_redis_use_cases.html
http://thechangelog.com/post/2801342864/episode-0-4-5-redis-with-salvatore-sanfilippo
http://www.slideshare.net/pauldix/indexing-thousands-of-writes-per-second-with-redis
http://ai.mee.nu/is_couchdb_the_anti-redis
http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis
http://antirez.com/post/take-advantage-of-redis-adding-it-to-your-stack.html

ipoval

##
# If you encountered a problem like this:
#   Errno::EMLINK: Too many links ...releases/20110811111351/public/document/file/51159
# Most likely it is caused by the limitations of your Linux filesystem - 
# a directory can only have a certain number of sub-directories.
#
# http://blog.zachwaugh.com/post/309921185/ext3-filesystem-sub-directory-limit
#

##

ipoval

#!/usr/bin/env ruby
# encoding: utf-8

##
# @example
#   ruby -rubygems `__FILE__` `source_bucket_name` `target_bucket_name`
#
# @author @ipoval
#
# @see https://github.com/ipoval

ipoval

fibonacci = Enumerator.new do |yielder|
  n1, n2 = 0, 1
  loop do
    yielder.yield n1
    n1, n2 = n2, n1 + n2
  end
end

p fibonacci.first(20)

ipoval

$('#products').append('<%= j render(@products) %>');
<% if @products.next_page %>
  $('.pagination').replaceWith('<%= j will_paginate(@products) %>');
<% else %>
  $('.pagination').remove();
<% end %>

ipoval

class Blog
  attr_writer :post_source

  def new_post
    post_source.call.tap do |p|
      p.blog = self
    end
  end

  private

ipoval

INSTALLATION

echo "gem 'machinist_blueprint_with_method',\
      git: 'git://gist.github.com/6204150.git',\
      group: 'test'" >> Gemfile

EXAMPLE OF USAGE