Chris mayinx

Pry Cheat Sheet

Command Line

pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
pry -r ./config/environment.rb - load your rails into a pry session

Debugger

NOTE: This post now lives (and kept up to date) on my blog: http://hakunin.com/rails3-load-paths

Do nothing. All files in this dir are eager loaded in production and lazy loaded in development by default.

##Refs

	class Registration < AggregateForm
	component :user, :email, :password
	component :profile, :zip

	validate_components :promote_errors
	validate # whatever else you want
	end

	# This would give you
	# * email, password, zip attrs

	In celebration of Whyday: Rubyists always want to show others the beautiful code
	they have created, hence the question: Has Anybody Seen My Code?

	Has Anybody Seen My Code
	(sung to the tune of Has Anybody Seen My Gal)

	Clean and small, works for all,
	Ruby is my all in all.
	Has anybody seen my code?

	# Call scopes directly from your URL params:
	#
	# @products = Product.filter(params.slice(:status, :location, :starts_with))
	module Filterable
	extend ActiveSupport::Concern

	module ClassMethods

	# Call the class methods with names based on the keys in <tt>filtering_params</tt>
	# with their associated values. For example, "{ status: 'delayed' }" would call

	# This is the ONLY way I've found that works
	# All other suggested solutions (see below examples) don't actually work
	# And as an extra bonus: this deep copies as well!

	def deep_copy(o)
	Marshal.load(Marshal.dump(o))
	end

	group :production do
	gem 'unicorn'

	# Enable gzip compression on heroku, but don't compress images.
	gem 'heroku-deflater'

	# Heroku injects it if it's not in there already
	gem 'rails_12factor'
	end

	# My take on Mike's source_for method.
	# (see http://pragmaticstudio.com/blog/2013/2/13/view-source-ruby-methods)
	#
	# (1) I named it 'src' rather than source_for (ok, I'm a lazy typer).
	# (2) The edit function was broken out as a separate function.
	# (3) The edit function is for emacs
	# (4) If the method is not defined on the object, and the object
	# is a class, then see if it is an instance method on the class.
	#
	# The fourth point allows my to say:

	# db/migrate/20120625030355_add_deleted_at_to_user.rb

	class AddDeletedAtToUser < ActiveRecord::Migration
	def change
	add_column :users, :deleted_at, :time
	end
	end