felipeelias

# Para salvar a altura e largura das imagens enviadas pelo plugin paperclip, utilize o callback abaixo
# 
# class Document < ActiveRecord::Base
#   
#   has_attached_file :document, :styles => { :medium => "300x300>" }
#   
#   before_save :save_dimensions
#   
#   def save_dimensions
#     if document.image?

oukayuka

module ActionView
  module Helpers
    module FormHelper
      alias :text_field_without_inputmode :text_field

      # ==== Options
      # * <tt>:inputmode</tt> - 入力モード。Jpmobile::InputMode::HIRAGANA-全角ひらがな、Jpmobile::InputMode::HANKAKUKANA-半角カナ、Jpmobile::InputMode::ALPHABET-半角英字、Jpmobile::InputMode::NUMERIC-半角数字
      # ==== Examples
      #   text_field_tag(:user, :name, :size => 20, :inputmode => Jpmobile::InputMode::HIRAGANA)
      #   # => <input id="name" name="name" type="text" size="20" istyle="1" style="-wap-input-format:&quot;&lt;ja:h&gt;&quot;">

visnup

class PostsController < ApplicationController
  respond_to :html, :xml, :json

  # GET /posts
  # GET /posts.xml
  def index
    @posts = Post.paginate :page => params[:page]
    respond_with @posts do |format|
      format.atom
    end

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

massive

# Run: curl https://gist.github.com/raw/719970/locale_diff.rb | ruby - en fi
require 'rubygems'
require 'yaml'

l1 = ARGV[0]
l2 = ARGV[1]
first = YAML.load_file(l1 + ".yml")
second = YAML.load_file(l2 + ".yml")

def diff(root, compared, structure = [])

ryanb

These are some of my (Ryan Bates) favorite gems to use for various tasks:

• JavaScript: jQuery with jquery-rails
• Pagination: Kaminari
• Testing: RSpec, Cucumber and Capybara
• Factories: Factory Girl
• Authentication: Nifty Generators and Omniauth
• Authorization: CanCan
• File Attachments: Carrierwave
• HTML/XML Parsing: Nokogiri

pvdb

With the introduction of Phusion Passenger Standalone, some of the established wisdom with regards to Capistrano tasks for managing Passenger are a tad outdated.

In particular, the start and stop tasks for Passenger are typically NOOPs, and only the restart task is deemed relevant. This is arguably no longer the case for standalone Passenger, where start and stop tasks do make sense, as they did back in the mongrel days.

The following Capistrano tasks illustrate how to start, stop and restart a standalone Passenger setup.

These tasks are for a Passenger setup that uses Unix domain sockets, but they can easily be modified for Passenger instances configured for TCP sockets.

    namespace :deploy do

task :start, :roles => :app, :except => { :no_release => t

MyArtChannel

# Add this to the end of your development.rb and add 
#
# gem 'pry'
#
# to your Gemfile and run bundle to install.

silence_warnings do
  begin
    require 'pry'
    IRB = Pry

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

moroya

(function(){
	var total = {};
	var year = '2012';
	var all = false;
	function init(num) {
		if(typeof num !== 'number') {
			num = 0;
			$('<div/>').css({
				position: 'fixed',
				left: 0,