eliotsykes

<% # This file lives at spec/features/views/index.html.erb %>
<h1>My Temporary Page</h1>

eliotsykes

# File: config/initializers/active_job_deserializer_extension.rb
return unless (VERSION::MAJOR == 5 && VERSION::MINOR == 2)

require "active_job/arguments"

module ActiveJobDeserializerExtension
  # This copies the hash deserialization from activejob 6.0 so activejob 5.2 is forwards compatible, it can run jobs
  # with hash args that were serialized by activejob 6.0. This allows Rails 5.2 and 6.0 to run within the same app
  # during the upgrade period.
  def deserialize_hash(serialized_hash)

eliotsykes

# Place this file in app/admin/jobs.rb
ActiveAdmin.register Delayed::Job, as: 'DelayedJob' do
  # menu parent: 'Some Existing Menu' # optional

  permit_params :priority, :queue, :run_at

  actions :index, :show, :edit, :update, :destroy
  config.batch_actions = true

  index do

eliotsykes

# An example to extract the ruby output expressions from an ERB template using the temple gem:
#
# 1. Install 'temple' gem https://github.com/judofyr/temple
# 2. Require this erb_parser.rb file and run:
#
# ErbParser.call
#
# Dynamics will be:
# [[[:dynamic, " @page.title "],
#   [:dynamic, " an_image "],

eliotsykes

Usage of ActiveRecord::Base.configurations with surrounding lines to help answer https://twitter.com/eileencodes/status/1028624971675979777

Source: ~200 open source Rails apps and engines https://github.com/eliotsykes/real-world-rails

~/dev/real-world-rails (master)
$ ag --ruby -C 15 'ActiveRecord::Base.config'
apps/alaveteli/config/initializers/alaveteli.rb:60-require 'user_spam_scorer'
apps/alaveteli/config/initializers/alaveteli.rb:61-require 'alaveteli_rate_limiter'
apps/alaveteli/config/initializers/alaveteli.rb:62-require 'alaveteli_spam_term_checker'

eliotsykes

# This file lives at config/initializers/versioned_migrations.rb
def supports_versioned_migrations?
  Rails::VERSION::MAJOR >= 5
end

if supports_versioned_migrations?
  ActiveSupport::Deprecation.warn(
    "Versioned migrations are supported in your Rails version, you can delete file: #{__FILE__}"
  )
  return

eliotsykes

Some open source Rails apps that use/used Skylight gem

Search done on collected Rails codebases at https://github.com/eliotsykes/real-world-rails/

$ ag -G Gemfile skylight
apps/adopt-a-hydrant/Gemfile.lock
181:    skylight (0.10.6)
233:  skylight

eliotsykes

# Create file at lib/tasks/check_rollbar.rake
require 'securerandom'

# Run this with `heroku run rake check_rollbar`
desc "Check Rollbar reports errors raised in Rake tasks"
task check_rollbar: :environment do
  unique_msg = "Hello from rake check_rollbar (unique identifier: #{SecureRandom.hex})"

  begin
    raise ActiveRecord::RecordNotFound, unique_msg

eliotsykes

Open Source AngularJS Rails Apps

Expect some false positives here, but hopefully most of these are open source Rails apps that use (or once used) AngularJS.

If you'd like to help update the list, please comment below with any of these apps you discover do not use AngularJS and include my username (@eliotsykes) in your message.

Confirmed using AngularJS

• https://github.com/openfoodfoundation/openfoodnetwork

eliotsykes

require 'set'

def is_valid(code)
    openers_to_closers = {
        '(' => ')',
        '{' => '}',
        '[' => ']'
    }

    openers = Set.new(openers_to_closers.keys.to_set)