esshka

## just some ways to check if a url exists

# method 1 - from Simone Carletti
require "net/http"
url = URI.parse("http://www.google.com/")
req = Net::HTTP.new(url.host, url.port)
res = req.request_head(url.path)

# method 2 - from some kid on the internet
require 'open-uri'

esshka

# Better each() for use with coffeescript
# 1. Wraps child in jquery object
# 2. Sets child first argument, so that fat-binding can be used.
# 3. Sets @ as well, for normal binds
jQuery.fn.loop = (block) ->
  for i in @
    element = jQuery(i)
    res = block.call element, element
    break if res == false

esshka

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

esshka

<ul id="members" data-role="listview" data-filter="true">
    <!-- ... more list items ... -->
    <li>
        <a href="detail.html?id=10">
            <h3>John Resig</h3>
            <p><strong>jQuery Core Lead</strong></p>
            <p>Boston, United States</p>
        </a>
    </li>
    <!-- ... more list items ... -->

esshka

# include from an initializer

module HstoreAccessor
  def self.included(base)
    base.extend(ClassMethods)
  end
  
  module ClassMethods
    def hstore_accessor(hstore_attribute, *keys)
      Array(keys).flatten.each do |key|

esshka

unless Rails.env.production?
  connection = ActiveRecord::Base.connection
  connection.tables.each do |table|
    connection.execute("TRUNCATE #{table}") unless table == "schema_migrations"
  end

  sql = File.read('db/import.sql')
  statements = sql.split(/;$/)
  statements.pop

esshka

#!/bin/bash
### BEGIN INIT INFO
# Provides:     sidekiq beta    
# Required-Start:   $syslog $remote_fs
# Required-Stop:    $syslog $remote_fs
# Should-Start:     $local_fs
# Should-Stop:      $local_fs
# Default-Start:    2 3 4 5
# Default-Stop:     0 1 6
# Short-Description:    sidekiq beta - asynchronous rails 

esshka

#!/bin/bash
# sidekiq    Init script for Sidekiq
# chkconfig: 345 100 75
#
# Description: Starts and Stops Sidekiq message processor for Stratus application.
#
# User-specified exit parameters used in this script:
#
# Exit Code 5 - Incorrect User ID
# Exit Code 6 - Directory not found

esshka

// This script will boot app.js with the number of workers
// specified in WORKER_COUNT.
//
// The master will respond to SIGHUP, which will trigger
// restarting all the workers and reloading the app.

var cluster = require('cluster');
var workerCount = process.env.WORKER_COUNT || 2;

// Defines what each worker needs to run

esshka

app = angular.module 'BlogExample', []

# Simple controller that loads all blog posts
app.controller 'BlogCtrl', ['$scope', 'Blog', ($scope, Blog) ->
  # Get all the blog posts
  Blog.all().then (posts) ->
    $scope.posts = posts
    
  # Extend the $scope with our own properties, all in one big block
  # I like this because it looks like declaring a class.