ryanb

class Ability
  include CanCan::Ability
  
  def initialize(user)
    user ||= User.new # guest user
    
    if user.role? :admin
      can :manage, :all
    else
      can :read, :all

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.

mikeyk

#! /usr/bin/env python

import redis
import random
import pylibmc
import sys

r = redis.Redis(host = 'localhost', port = 6389)
mc = pylibmc.Client(['localhost:11222'])

rstacruz

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

matthutchinson

# place this in lib/fakeout.rb

require 'ffaker'

module Fakeout
  class Builder

    FAKEABLE = %w(User Product)

    attr_accessor :report

rpheath

How To: Authlogic to Devise

Step 1: Migration

1. bin/rails g migration AuthlogicToDevise
2. (see the file below for the actual migration, authlogic_to_devise.rb)
3. bin/rake db:migrate

Step 2: Update Gemfile

1. gem "devise", "~> 2.2.0"
2. bundle install

suxue

#!/bin/ksh

typeset port=$((RANDOM % 60000))
while ((port < 30000)); do
    port=$((RANDOM % 60000))
done

typeset pipe=`mktemp -u`
mkfifo $pipe
trap "rm -f $pipe" INT

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

handylearn

require 'omniauth-oauth2'

# this OmniAuth-Strategy uses the Keyrock Identity Management
# see http://catalogue.fiware.org/enablers/identity-management-keyrock
# The server url is from the public FIWARE Lab instance.
module OmniAuth
  module Strategies
    class FilabStrategy < OmniAuth::Strategies::OAuth2
      option :name, "filab"
      option :client_options, {

tachyons

#!/usr/bin/env ruby
require 'date'
require 'rubygems'
require 'libnotify'
require 'net/http'
require 'rexml/document'
require 'xmlsimple'
def every( time )
    Thread.new {
        loop do