dalpo

module CancanLinkHelper

  def show_link(*args, &block)
    if block_given? && can?(:read, args[0])
      object = args[0]
      html_options = args[1] || {}
      show_link(object, capture(&block), html_options)
    elsif can?(:read, args[0])
      object  = args[0]
      content = args[1] || glyph(:eye_open)

dalpo

module SimpleForm
  module Inputs
    class DatePickerInput < SimpleForm::Inputs::StringInput
      def input_html_options
        value = object.send(attribute_name)
        options = {
          value: value.nil?? nil : I18n.localize(value, format: :datepicker),
          data: {
            behaviour: 'datepicker'
          }

ragingwind

Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster

phamann

Lesson's learnt building the Guardian

Below is a collection of my favourite responses I gathered from Guardian engineers when asked the question: What have you learnt starting from scratch and building a mobile-first next generation web platform for the Guardian?

Daithi O Crualaoich

• Work with great people.
• Deploy like crazy. This means the team has to control the infrastructure as well as code.
• Design is not a service. Designers have to sit in the team.
• Infrastructure is intrinsically unreliable. Discard and replace is the robust strategy.
• Use your CDN for HTML too.
• Don't always do as you are told.

maxim

In Rails 3

NOTE: This post now lives (and kept up to date) on my blog: http://hakunin.com/rails3-load-paths

If you add a dir directly under app/

Do nothing. All files in this dir are eager loaded in production and lazy loaded in development by default.

If you add a dir under app/something/

dalpo

@import compass/css3/transform

.blueimp-gallery
  .video-js-box.video-content
    +transform-style(preserve-3d)

    .video-js.vjs-default-skin
      +translate(-50%, -50%)
      position: absolute
      left: 50%

simonbru

This is a Python script to extract GNOME/GTK's color scheme and apply it to Wine, so that the themes (approximately) match.

Instructions:
1. Set your Gnome theme as you would like it
2. Run with a command like "python wine_colors_from_gtk.py"
3. Restart any apps running in Wine.  They should match the Gnome theme colors now.

Better description with screenshots here: http://www.endolith.com/wordpress/2008/08/03/wine-colors/

This is also stored on https://code.launchpad.net/~endolith/+junk/wine-color-scraper

gbuesing

UPDATE a fork of this gist has been used as a starting point for a community-maintained "awesome" list: machine-learning-with-ruby Please look here for the most up-to-date info!

Resources for Machine Learning in Ruby

Gems

• liblinear-ruby: Ruby interface to LIBLINEAR using SWIG

potomak

Javascript

• Indent using 2 spaces
• Use single quotes, unless you are writing JSON
• Declare one variable per var statement
• Variables and properties should use lower camel case capitalization
• Class names should be capitalized using upper camel case
• Constants should be declared as regular variables or static class properties, using all uppercase letters
• Use the triple equality operator

jimmynguyc

In Gemfile
=========
gem 'capistrano-rails'
gem 'capistrano-rbenv'
gem 'capistrano-rbenv-install'
gem 'capistrano-safe-deploy-to'
gem 'capistrano-sidekiq'
gem 'capistrano3-puma'

In Capfile