arches

var Arch; if (!Arch) Arch = {}; // set up custom namespace 'arch'

Arch.Flash = {
  showError: function(message) {
    if (message == "") return;
    $('#flash-msg .user-msg-detail').removeClass('notice');
    $('#flash-msg .user-msg-detail').addClass('error');
    $('#flash-msg .user-msg-detail span').html(message);
    $('#flash-msg').show();
  },

alno

require 'benchmark'

count = 1000000
Benchmark.benchmark do |bm|
	bm.report("concat") { count.times { 11.to_s + '/' + 12.to_s } }
	bm.report("interp") { count.times { "#{11}/#{12}" } }
end

coreyward

This is a Rails 5 adaptation of an answer to a StackOverflow question regarding using jQuery UJS to display AJAX-retrieved content in a modal. Here is the original answer:

http://stackoverflow.com/questions/5766055/jquery-modal-windows-and-edit-object/5766232#5766232

cgriego

class EvilObject
  class << self
    def const_defined?(*)
      true
    end

    def const_get(*)
      Object
    end

cblunt

# ...

gem 'carrierwave'
gem 'fog', '~> 1.0.0' # Need to specify version, as carrierwave references older (0.9.0) which doesn't allow configuration of Rackspace UK Auth URL

jwo

class Api::RegistrationsController < Api::BaseController
  
  respond_to :json
  def create

    user = User.new(params[:user])
    if user.save
      render :json=> user.as_json(:auth_token=>user.authentication_token, :email=>user.email), :status=>201
      return
    else

runemadsen

Polymorphic Associations reversed

It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media

This example shows how to create an ArticleElement join model that handles the polymorphic relationship. To add fields that are common to all polymorphic models, add fields to the join model.

hishalv

CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider               => 'AWS',       # required
    :aws_access_key_id      => 'my_access_key',       # required
    :aws_secret_access_key  => 'my_secret_access_key',       # required
    :region                 => 'us-east-1'  # optional, defaults to 'us-east-1'
  }
  config.fog_directory  = 'my_bucket_name'                     # required
  config.fog_host       = 'https://my_bucket_name.s3.amazonaws.com'            # optional, defaults to nil
  config.fog_public     = false                                   # optional, defaults to true

dallas

Install Rails 3.1

gem install rails

generate new app, skipping Test::Unit file generation

rails new my_app -T

Set up Gemfile

mimosz

# encoding: utf-8
ActiveAdmin::Views::Pages::Base.class_eval do
  private
  # Renders the content for the footer
  def build_footer
    div :id => "footer" do
      para "Copyright © #{Date.today.year.to_s} #{link_to('Example.com', 'http://example.com')}. Powered by #{link_to('Active Admin', 'http://www.activeadmin.info')} #{ActiveAdmin::VERSION}".html_safe
    end
  end
end