gmcculloug

$dry_run = true

def clean_automation(klass)
  puts "#{$dry_run ? 'DRY RUN' : 'Processing'} #{klass.name}"

  klass.where(:state => %w[pending queued]).in_batches.each_with_index do |relation, batch_index|
    ids = relation.pluck(:id)
    queue_relation = MiqQueue.where(:class_name => klass.name, :instance_id => ids)

    puts "  Batch #{batch_index}  Size #{ids.size}  Queue Item Count: #{queue_relation.size}"

gmcculloug

class ExportArInstances
  EXCLUDE_ATTRS = %w(id created_on updated_on created_at updated_at).freeze

  def self.export_object(obj, hash)
    class_name = obj.class.name.underscore
    puts "Exporting #{obj.class.name} [#{obj.try('name')}] with ID: #{obj.id}"

    (hash[class_name] ||= []) << item = {'attributes' => export_attributes(obj)}

    try(class_name).tap do |has_many_assoc, has_one_assoc|

joyrexus

collapsible markdown?

CLICK ME

yes, even hidden code blocks!

print("hello world!")

remarkablemark

How to add an image to a gist

1. Create or find a gist that you own.
2. Clone your gist (replace <hash> with your gist's hash):

   # with ssh
   git clone git@gist.github.com:<hash>.git mygist
   
   # with https

git clone https://gist.github.com/.git mygist

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

obfusk

import code; code.interact(local=dict(globals(), **locals()))

eliotsykes

require 'rails_helper'

RSpec.describe TodosController, :type => :controller do

  describe "GET #index" do
  #describe "POST #create" do
  #describe "GET #show" do
  #describe "PATCH #update" do (or PUT #update)
  #describe "DELETE #destroy" do
  #describe "GET #new" do

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

kevinhughes27

#!/usr/bin/env ruby

require 'octokit'
require 'highline/import'
require 'colorize'
require 'byebug'
require 'csv'
require 'active_support/time'

username = ask("Enter your Github username:  ") { |q| q.echo = true }

mattbrictson

<%= render("shared/navbar") %>

<div class="container">

  <%= render("shared/alerts") %>
  <%= render("shared/page_header") %>

  <%= yield %>

  <%= render("shared/footer") %>