trev

# Ruby CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-ruby/ for more details

defaults: &defaults
  working_directory: ~/split_app
  parallelism: 2

  docker:
    - image: circleci/ruby:2.5.0-node-browsers

trev

class Server
  class << self
    delegate :dl_private_key!, to: Figaro.env

    SSH_KEY = { 
      key_data: [ dl_private_key! ],
      keys: [], # Required or Net:SSH will search for machine keys
      keys_only: true,
    }
    

trev

class LineItem < ActiveRecord::Base
  belongs_to :order
  has_many :passengers
end

trev

        = simple_form_for @form, wrapper: :booking do |f|
          .simple-group
            %h3.small-title Your Personal Information
            = f.simple_fields_for :line_items do |li|
              = li.simple_fields_for :passengers do |pax|
                .row
                  .col-md-12
                    %h4= "Trip: #{Product.find(li.object.product_id).title}"
                    %h5= "Tell us about dude ##{pax.index + 1}"
                    = pax.input :first_name, placeholder: 'Big'

trev

• If you haven't already, go setup Ruby with chruby + ruby-install
• Save your hair by setting up auto-switching with chruby
• Add a .ruby-version file with Ruby version you want to use: 2.2.1
• Add a .powenv file with:

source /usr/local/share/chruby/chruby.sh
chruby $(cat .ruby-version)

• Generate the rails app skeleton: $ rails new my_billion_dollar_app
• Link it up to pow: $ ln -s ~/Sites/my_billion_dollar_app ~/.pow/.

trev

Linux (Ubuntu)

Commands/Actions

• Add user: $ adduser dog
• Allow user to sudo (see DigitalOcean for great explanation):

$ visudo
# This allows user to sudo but prompts for password
dog ALL=(ALL:ALL) ALL

trev

class MethodLogger
  def log_method(klass, method_name)
    klass.class_eval do
      alias_method "#{method_name}_original", method_name
      define_method method_name do |*args, &block|
        puts "Called #{method_name}"
        send "#{method_name}_original", *args, &block
      end
    end
  end

trev

sum = 0
[106.90, 106.90, 106.90, 106.90, 106.90, 106.90].each do |l|
  sum += l
  p sum
end

# Output
# 106.9
# 213.8
# 320.70000000000005

trev

Keybase proof

I hereby claim:

• I am trev on github.
• I am trevw (https://keybase.io/trevw) on keybase.
• I have a public key ASA_MrVzdOD_P5Av12r3MHZGLp63eH1Hgdvld9THynOmaQo

To claim this, I am signing this object:

trev

How to customize the humanized :category symbol in the generated error message. Tested with Rails 4.1

class Listing < ActiveRecord::Base    
  validate :premium_category

  private

 def premium_category