brookr

# From the project root

rvm env -- `rvm current` >> .powenv

traviskroberts

class Alert < ActiveRecord::Base
  belongs_to :alertable, :polymorphic => true
end


class Region < ActiveRecord::Base
  has_many :alerts, :as => :alertable
end

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

marktheunissen

This playbook has been removed as it is now very outdated.

peter

# 0. Make sure you have Ruby 1.9.3 installed, and optionally RVM and PostgreSQL

# 0.2 If you are on the Mac, make sure you have a c compiler by installing XCode Command Line Tools or gcc4.2 with homebrew
# https://github.com/mxcl/homebrew/wiki/Custom-GCC-and-cross-compilers

# 0.5 Make sure you have bundler version ~> 1.2 as Rails depends on it
gem install bundler

# 1. Get edge Rails source (master branch)
git clone https://github.com/rails/rails.git

mikhailov

# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
#  /etc/init.d/nginx                             (1. nginx)
#  /home/app/public_html/app_production/current  (Capistrano directory)
#

kesor

source :rubygems

gem 'json', '= 1.5.4'  # knife/chef 11.0 and 11.20 is broken with json 1.5.5/1.7.7
gem 'vagrant'
gem 'vagrant-hostmaster'

cypher

CONFIGURE_OPTS="--with-openssl-dir=$(brew --prefix openssl) --with-readline-dir=$(brew --prefix readline)" \
RUBY_CONFIGURE_OPTS="--with-openssl-dir=$(brew --prefix openssl)" \
rbenv install 2.0.0-p0

amichal

class Select2Input < SimpleForm::Inputs::CollectionSelectInput
  def input
    options[:include_hidden] ||= false
    options[:include_blanks] ||= false
    options[:input_html][:id] ||= "#{@builder.options[:as]}_#{attribute_name}"
    dom_selector = "##{options[:input_html][:id]}"
    
    if select2_options = options.delete(:select2)
      options[:collection] = [] + Array(@builder.object.send(attribute_name))
    end

jed

How to set up stress-free SSL on an OS X development machine

One of the best ways to reduce complexity (read: stress) in web development is to minimize the differences between your development and production environments. After being frustrated by attempts to unify the approach to SSL on my local machine and in production, I searched for a workflow that would make the protocol invisible to me between all environments.

Most workflows make the following compromises:

• Use HTTPS in production but HTTP locally. This is annoying because it makes the environments inconsistent, and the protocol choices leak up into the stack. For example, your web application needs to understand the underlying protocol when using the secure flag for cookies. If you don't get this right, your HTTP development server won't be able to read the cookies it writes, or worse, your HTTPS production server could pass sensitive cookies over an insecure connection.

• Use production SSL certificates locally. This is annoying