carpodaster

Coach Guide

You heard about Rails Girls and want to be a coach? Here you’ll find all you need to know what coaching actually means.

What it takes to be a coach

First of all, Coaches are patient, tolerant and open people! This goes for everything, but also for technologies and solutions you might not chose for yourself. Whether or not you like RSpec or TestUnit, ERB or Haml, or whatever text editor you prefer does not matter to students at all. They are in a learning position and whatever gets them started, curious and eager to learn is a perfect tool – no matter your personal preferences. Keep in mind that your preferences – just like "common knowledge of the community" – is a result of a long, long learning process which you, and the community have gone through. Give your students the same chance to discover. Our goal is to get people started, learning and staying excited about coding!

carpodaster

require 'minitest/autorun'

class BaseBuilder
  class << self
    attr_accessor :klass
  end

  def self.inherited(subclass)
    super
    subclass.klass = (subclass.name || subclass.to_s).gsub(/Builder\z/, '')

carpodaster

class Firewall < Struct.new(:app)

  class << self
    def blacklist
      @blacklist ||= ['192.0.2.1'].freeze # Example IP, see RFC 5735
    end
  end

  def call(env)
    if self.class.blacklist.include? env['HTTP_X_FORWARDED_FOR']

carpodaster

ActiveRecord::Base.establish_connection adapter: 'sqlite3', database: ':memory:'
ActiveRecord::Base.connection.execute <<-EOSQL
  CREATE TABLE in_memory_records(
    id INTEGER PRIMARY KEY  AUTOINCREMENT NOT NULL,
    name TEXT
  );
EOSQL

Object.const_set 'InMemoryRecord', Class.new(ActiveRecord::Base)

carpodaster

#!/usr/bin/env bash

CRLFILE=/root/certs/crl/crl.pem
DAYS=14

EVENT_GIRL_SITE=https://event-girl.herokuapp.com
EVENT_GIRL_TOKEN=myeventgirlaccesstoken

source /usr/local/rvm/environments/ruby-2.0.0-p247

carpodaster

class ExternalService
  include RateLimiter

  def self.work_with_users
    rate_limit 20, 2.0, User.find_each do |user|
      # Do stuff with each user.
      # Pause 2 seconds every 20 iterations
    end
  end
end

carpodaster

#!/usr/bin/env bash
#
# This small piece of sed converts the obj.errors.on(:foo) calls in 
# a single file to the new obj.errors[:foo] syntax as introduced in Rails 3

FILE=$1

function check_and_backup_file() {
  if [ -e "$FILE" ]; then
    cp $FILE $FILE.orig