JoshCheek

A-small-practice.out.txt
A-large-practice.out.txt

JoshCheek

# require 'pg'; PG.connect(dbname: 'postgres').exec('create database josh_testing') # <-- uncomment to create the db (only needs to run once)

# ===== Setup ActiveRecord =====
require 'active_record'
require 'logger'
ActiveRecord::Base.establish_connection adapter: 'postgresql', database: 'josh_testing'
ActiveRecord::Base.logger = Logger.new $stdout
ActiveSupport::LogSubscriber.colorize_logging = false

# ===== Migration =====

JoshCheek

# Strong params tries to require all the files they depend on.
# This way you can require strong params itself, without having the entire world loaded
`gem which action_controller/metal/strong_parameters | xargs ruby -ne 'print if /^require/'`
# => "require \"active_support/core_ext/hash/indifferent_access\"\n" +
#    "require \"active_support/core_ext/hash/transform_values\"\n" +
#    "require \"active_support/core_ext/array/wrap\"\n" +
#    "require \"active_support/core_ext/string/filters\"\n" +
#    "require \"active_support/core_ext/object/to_query\"\n" +
#    "require \"active_support/rescuable\"\n" +
#    "require \"action_dispatch/http/upload\"\n" +

JoshCheek

# Based on this video: https://www.youtube.com/watch?v=dxvmafuP9Wk
# Screenshot:          https://twitter.com/josh_cheek/status/1049913914585165826
# Animation:           https://twitter.com/josh_cheek/status/1050054519911063552
require 'graphics'
require 'matrix'

class Spline < Graphics::Simulation
  def initialize(points, original_fn)
    super 800, 600
    @points      = points

JoshCheek

require "rails"
require 'action_controller/railtie'

# =====  Configuration  =====
Rails.logger = Logger.new $stdout
ActiveSupport::LogSubscriber.colorize_logging = false

class MahApp < Rails::Application
  config.cache_classes               = true
  config.eager_load                  = false

JoshCheek

RUBY_ENGINE   # => "ruby"
RUBY_VERSION  # => "2.5.1"
RUBY_PLATFORM # => "x86_64-darwin17"


# QUESTION
#
# Say you want to bail from a web controller as soon as some method is called
# Eg in Rails, maybe you want a `render!` method, which is the same as render,
# but it also returns from the method that called it. You could accomplish this

JoshCheek

body {
  color: blue;
}

JoshCheek

require 'active_record'
ActiveRecord::VERSION::STRING # => "5.1.6"

ActiveRecord::Base.establish_connection adapter: 'sqlite3', database: ':memory:'
ActiveRecord::Schema.define do
  self.verbose = false
  create_table(:users) do |t|
    t.string :name
    t.boolean :activated, default: false
  end

JoshCheek

let count = 0
module.exports = () => count++

JoshCheek

# Note that I haven't read about the difference between the base 64 RFCs
def to_slug(id)
  ber_id = [id].pack('w')      # => "\x85\xC8_"
  b64_id = [ber_id].pack('m')  # => "hchf\n"
  b64_id[/\A(.*?)=*\n*\z/, 1]  # => "hchf"
end                            # => :to_slug

def from_slug(slug)
  slug.unpack('m')   # => ["\x85\xC8_"]
      .first         # => "\x85\xC8_"