dgtm

Muddling with Modules

Goals:
  How do most of us use modules?
  How do we change the way we use modules?

Topics:
  Including/Extending
  Namespacing
  Mixing In

dgtm

class SheetWorker
  include Sidekiq::Worker
  sidekiq_options queue: :critical, :retry => 3

  def perform(id)
    sheet = Sheet.find(id)
    if sheet.failed?
      sheet.resend_failed_sheet
    end
    begin

dgtm

HTMLHelper
<repl type="ruby">
  <code file="timer" operation="append/create">
    require 'lib/clock.rb'
    class Timer
      def tick
        Clock.new.rewind
      end
    end
  </code>

dgtm

class Board
  #properties
  attr_accessor :location
  attr_accessor :width
  attr_accessor :height
  attr_accessor :name
  
  #relationships
  attr_accessor :image
  attr_accessor :contract

dgtm

results1@surehire.mailgun.org,
results2@surehire.mailgun.org,
results3@surehire.mailgun.org,
results4@surehire.mailgun.org,
results5@surehire.mailgun.org,
results6@surehire.mailgun.org,
results7@surehire.mailgun.org,
results8@surehire.mailgun.org,
results9@surehire.mailgun.org,
results10@surehire.mailgun.org,

dgtm

package recfun
import common._

object Main {
  def main(args: Array[String]) {
    println("Pascal's Triangle")
    for (row <- 0 to 10) {
      for (col <- 0 to row)
        print(pascal(col, row) + " ")
      println()

dgtm

Phase I
First PDF is uploaded and it is sent to Sidekiq.
	If Sidekiq dies and it remains in the Q Backlog infinitely, what do we do?

App precodes: rotates, crops, creates decodings
	Failures here are retried thrice, if no success, send email to us and SureWire
	Do this yourself / App Error has occurred

Tests are scanned for integrity
	Emails are sent for no tests, incomplete test set, unidentified pages and processable pages

dgtm

  def call(worker, msg, queue)
    begin
      if msg['retry_count'] && msg['retry_count'] >= @max_retries
         .....
         .....
      else
        yield
      end
    rescue => e
      raise

dgtm

2012-08-28T19:13:01Z 25218 TID-117y84 SecondaryTestProcessor MSG-zeneo INFO: start
2012-08-28T19:13:11Z 25218 TID-117y84 WARN: {"retry"=>true, "queue"=>"critical", "backtrace"=>40, "class"=>"SecondaryTestProcessor", "args"=>["503d1443da756c61fa000125"], "jid"=>"2eak6j7a1Kp/C4N47hEZBg=="}
2012-08-28T19:13:11Z 25218 TID-117y84 WARN: No transition found for event sent_for_work
2012-08-28T19:13:11Z 25218 TID-117y84 WARN: /usr/local/rvm/gems/ruby-1.9.3-p194/bundler/gems/stateflow-1e526266a2b1/lib/stateflow/event.rb:15:in `fire'
/usr/local/rvm/gems/ruby-1.9.3-p194/bundler/gems/stateflow-1e526266a2b1/lib/stateflow.rb:73:in `fire_event'
/usr/local/rvm/gems/ruby-1.9.3-p194/bundler/gems/stateflow-1e526266a2b1/lib/stateflow.rb:43:in `block (2 levels) in stateflow'
/home/deploy/application/releases/20120828110620/app/models/document.rb:295:in `send_secondary_pages'
/home/deploy/application/releases/20120828110620/app/workers/secondary_test_processor.rb:13:in `block in perform'
/usr/local/rvm/gems/ruby-1.9.3-p194/bundler/

dgtm

class EventHandler
  def initialize
    @callbacks = Hash.new { |h,k| h[k] = [] }
  end

  def on(event, callback)
    @callbacks[event] << callback
  end

  def trigger(event, *args)