rafaelp

# account.rb
class Account < ActiveRecord::Base
  has_many :users
  has_many :services
end

# user.rb
class User < ActiveRecord::Base
  belongs_to :account
end

wycats

Proposal for Improving Mass Assignment

For a while, I have felt that the following is the correct way to improve the mass assignment problem without increasing the burden on new users. Now that the problem with the Rails default has been brought up again, it's a good time to revisit it.

Sign Allowed Fields

When creating a form with form_for, include a signed token including all of the fields that were created at form creation time. Only these fields are allowed.

To allow new known fields to be added via JS, we could add:

rafaelp

ruby-1.9.2-p290 :001 > 0/0
ZeroDivisionError: divided by 0
	from (irb):1:in `/'
	from (irb):1
	from /Users/rafael/.rvm/rubies/ruby-1.9.2-p290/bin/irb:16:in `<main>'
ruby-1.9.2-p290 :002 > 1.0/0
 => Infinity 
ruby-1.9.2-p290 :003 > 0.0/0
 => NaN 
ruby-1.9.2-p290 :004 > 

Gozala

// Lack of tail call optimization in JS
var sum = function(x, y) {
  return y > 0 ? sum(x + 1, y - 1) :
         y < 0 ? sum(x - 1, y + 1) :
         x
}

sum(20, 100000) // => RangeError: Maximum call stack size exceeded

// Using workaround

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

joshuaclayton

require "money"

class Decorator < BasicObject
  undef_method :==

  def initialize(component)
    @component = component
  end

  def method_missing(name, *args, &block)

wisq

Why I love zsh (and hate being forced to use bash)

• Smarter completion. A few examples:
• context sensitive -- if you have file "name1" and directory "name2", "cd nam<TAB>" completes to "name2/"
• "tar xf <TAB>" completes to tarballs only. "unrar x <TAB>" completes to RARs only. etc.
• rsync / scp completion: "rsync host:anything/<TAB>" shows you files on host under anything/
• also works with rsync:// URLs
• SSH host completion from ~/.ssh/config & ~/.ssh/known_hosts
• lots of other smart completions: Rake tasks, git commands & SHAs, dpkg packages, dash-options for most commands, etc etc.

peterc

# Simple, scrappy UDP DNS server in Ruby (with protocol annotations)
# By Peter Cooper
#
# MIT license
#
# * Not advised to use in your production environment! ;-)
# * Requires Ruby 1.9
# * Supports A and CNAME records
# * See http://www.ietf.org/rfc/rfc1035.txt for protocol guidance
# * All records get the same TTL

nicholasjhenry

## PayRoll gem

# lib/pay_roll.rb
module PayRoll
  class << self
    attr_accessor :employee_directory
      def config
        yield self
      end
    end

wtaysom

module Where
  class <<self
    attr_accessor :editor
    
    def is_proc(proc)
      source_location(proc)
    end
    
    def is_method(klass, method_name)
      source_location(klass.method(method_name))