fidothe

require 'prawn'
require 'prawn/measurements'

# I have a small collection of links to the resources I used to figure all
# this out: http://pinboard.in/u:fidothe/t:pdfx
module PDFX
  class PageBox
    include Prawn::Measurements

    attr_reader :bleed_mm

chrisjacob

gem 'rails', '4.1.1'

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
gem 'jquery-turbolinks'

# Gems for twitter LESS -> CSS and JS support
gem 'execjs'

masonjm

class Armband
  def initialize(encounter, options = {})
    @encounter = encounter
  end
  
  def to_zpl(format)
    # Units are in dots
    zpl = "^XA"                 # ZPL Begin
    zpl << "^LH0,0"             # Home position X, Y
    zpl << "^PON"               # Print orientation normal

tashian

This is the script we use at yerdle to print labels from our Rails backend to our Zebra ZP450 printer.

See this blog post for the whole story.

leejarvis

#!/usr/bin/env ruby

require "with_args" # TBA

class User
  with_args String,
  def name=(name)
    @name = name
  end

sepastian

# Print a label on a Zebra TLP 2844 in Ruby.
# The printer is EPL/2 capable and connected via USB.
# EPL/2 reference: http://www.zebra.com/apps/dlmanager?dlp=-227178c9720c025483893483886ea54a70963bb77ca94fcc1d65ce9394326ed960e43d023beba35831d5d9bfc1740296347157b5024977a&c=gb&l=en

# https://github.com/larskanis/libusb
require 'libusb'

# Select the printer by vendor ID and product ID.
# To get a list of connected devices, use 'lsusb'.
# 0a5f:0x000a identifies the Zebra TLP 2844.

michaelfeathers

class Array
  def freq_by &block
    group_by(&block).map {|k,v| [k, v.count] }.sort_by(&:first)
  end

  def freq
    freq_by {|e| e }
  end
end

skwp

class Reverb::Actions::WatchListing
  def self.watch(user, product, listener)
    if product.owner?(user)
      listener.failure(I18n.t('flash.watchlist.error_own'))
    else
      Reverb::Analytics.track(user, :watch_product) # FIXME, this doesn't belong here
      user.user_watch_products.create(:product_id => product.id)
      listener.success
    end
  end

henrik

1. Your class can be no longer than 100 lines of code.
2. Your methods can be no longer than five lines of code.
3. You can pass no more than four parameters and you can’t just make it one big hash.
4. When a call comes into your Rails controller, you can only instantiate one object to do whatever it is that needs to be done. And your view can only know about one instance variable.

You can break these rules if you can talk your pair into agreeing with you.

joakimk

# Written for this gist, but inspired by production code (I haven't run this code).

# Imperative shell
class Timer
  def initialize(record)
    @record = record
  end

  def start
    save_changes clock.start