prdanelli

Ranger Cheatsheet

General

Shortcut	Description
ranger	Start Ranger
Q	Quit Ranger
R	Reload current directory
?	Ranger Manpages / Shortcuts

prdanelli

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

prdanelli

Install PG Gem without installing Postgres locally

The Problem

Installing the ruby PG gem requires Postgres to be instaled locally to install the gem, which is annoying and unnecessary if you're building inside of docker.

An error occurred while installing pg (1.2.3), and Bundler cannot continue.
Make sure that `gem install pg -v '1.2.3' --source 'https://rubygems.org/'` succeeds before bundling.

prdanelli

// $("a.popup").each(function() {
//    new PopupWindow($(this))
//  });

class PopupWindow {
  constructor($target){
    this.$target = $target

    if (this.$target.length === 0) {
      return

prdanelli

options = {
  to: "recipient@address.com", 
  from: "email@address.org", 
  subject: "Testing", 
  body: "This is the body"
}
ActionMailer::Base.mail(options).deliver_now

prdanelli

# Usage:
# class YourClass < ApplicationRecord
#   denormalizable_collection :my_collection
#   ...
#
#   def self.my_collection_data
#     self.where(...).limit(5)
#   end
# end

prdanelli

Decorate class with extend/prepend

Update indexed instance after blob analyzed

# app/jobs/active_storage/analyze_job_decorator.rb
module ActiveStorage::AnalyzeJobDecorator
  def self.prepended(base)
    base.around_perform do |job, block|
      block.call

prdanelli

# Oneliner
require 'sidekiq/api'; [Sidekiq::Queue.all.each(&:clear), Sidekiq::ScheduledSet.new.clear, Sidekiq::RetrySet.new.clear, Sidekiq::DeadSet.
new.clear];

require 'sidekiq/api'; 

# 1. Clear retry set
Sidekiq::RetrySet.new.clear

# 2. Clear scheduled jobs 

prdanelli

du -h --max-depth 1

prdanelli

#app/config/initializers/mailer.rb
ActionMailer::Base.smtp_settings = {
  address: 'smtp.mandrillapp.com',
  port: 587,
  user_name: '<account email>',
  password: '<api key>',
  authentication: 'login'
}

ActionMailer::Base.delivery_method = :smtp