he-and-her

=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')

he-and-her

class Avatar < ActiveRecord::Base

  attr_accessor :content_type, :original_filename, :image_data
  before_save :decode_base64_image

  has_attached_file :image,
    PAPERCLIP_CONFIG.merge(
    :styles => {
      :thumb => '32x32#',
      :medium => '64x64#',

he-and-her

require 'active_record'
require 'yaml'
require 'mysql'
require 'logger'

task :default => :migrate

desc "Migrate the database through scripts in db/migrate. Target specific version with VERSION=x"
task :migrate => :environment do
  ActiveRecord::Migrator.migrate('db/migrate', ENV["VERSION"] ? ENV["VERSION"].to_i : nil )

he-and-her

# 1) Create your private key (any password will do, we remove it below)

$ cd ~/.ssh
$ openssl genrsa -des3 -out server.orig.key 2048


# 2) Remove the password

$ openssl rsa -in server.orig.key -out server.key

he-and-her

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

he-and-her

class API::V1::BaseController < ApplicationController

  skip_before_filter :verify_authenticity_token

  before_filter :cors_preflight_check
  after_filter :cors_set_access_control_headers

  def cors_set_access_control_headers
    headers['Access-Control-Allow-Origin'] = '*'
    headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'

he-and-her

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

he-and-her

//Rotate the camera such that z points up and x to the right
var o:Quaternion = new Quaternion().setFromEuler(new Vector().set_xyz(-90, 0, 0).radians());

//Rotate by Arctan(sin(45°)) (grabbed from wikipedia) around x, to get the top-down part
var q:Quaternion = new Quaternion().setFromEuler(new Vector().set_xyz(Math.atan(Math.sin(45 * Maths.DEG2RAD)), 0, 0));

//Rotate around z by -45° to get the side-on part
var p:Quaternion = new Quaternion().setFromEuler(new Vector().set_xyz(0, 0, -45).radians());

//Combine the rotations and apply to the camera

he-and-her

module BinaryTree
  class Node
    attr_reader :word, :count, :left, :right

    include Enumerable

    def initialize(word)
      @word, @count = word, 1
    end

he-and-her

require "thread"
require "fftw3"
require "coreaudio"
require 'ruby-progressbar'

# progressbar = ProgressBar.create
# progressbar.total = 100

Thread.abort_on_exception = true