lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

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

bradgessler

#!/usr/bin/env bash

# Bare minimum Gems that are needed to keep a Ruby development environment in sync. This assumes
# that you use bundler in your workflow to control the installation of all other gems. If you need
# to bump the bundler or rubygem version across your team, change that here, then run bundler and
# and keep going.

RVMRC=1.9.2@my_gem_set
RUBYGEM_VERSION="1.6.2"
BUNDLER_VERSION="1.0.15"

chanks

# Stick the following in an initializer.

module Heroku
  class StaticAssetsMiddleware
    def cache_static_asset(reply)
      return reply unless can_cache?(reply)

      status, headers, response = reply

      headers['Cache-Control'] = 'public, max-age=31556926' # 1 year

tsujigiri

def parse filename, content
  offset = 0
  begin
    FasterCSV.parse(content) do |row|
      # do stuff
      offset += row.to_s.size
    end
  rescue FasterCSV::MalformedCSVError => e
    @file_offset ||= 0
    @file_offset += offset

eric

This is obsolete

This code is no longer needed. Heroku has provided syslog drains for all users for free.

For better Heroku logging with Papertrail, check this out:

http://help.papertrailapp.com/kb/hosting-services/heroku#standalone

nruth

#as seen in https://github.com/mooktakim/heroku_deployment
class AppTemplatesController < ApplicationController
  def app
    render :inline => "SUCCESS", :layout => 'master'
  end
  
  def cms
    render :inline => "SUCCESS", :layout => 'cms_admin'
  end
end

trevorturk

desc "cache assets"
task :cache_assets => :environment do

  paths = ['public/javascripts/all.js', 'public/stylesheets/all.css']

  puts "-----> caching assets..."
  paths.each do |path|
    puts "-----> #{path}"
  end

rcanand

## /config/initializers/dynamic_job.rb

require 'heroku'

# base class for all jobs that you wish to automatically scale and go down in Heroku
class DynamicJob
    #set a cap on maximum number of users ever - just in case. 
    MAX_CONCURRENT_WORKERS = 100
    
    def initialize

teich

module Core
  def self.included(mod)
    url = ENV['CORE_URL'] ? URI.parse(ENV['CORE_URL']) : URI.parse('postgres://postgres@localhost/heroku')
    mod.establish_connection(
      :adapter  => "postgresql",
      :host     => url.host,
      :username => url.userinfo.split(':')[0],
      :password => url.userinfo.split(':')[1],
      :database => url.path[1..-1]
    )

oayandosu

/**
  IMPORTANT: Requires this version of jquery 
             until 1.3.3 comes out http://gist.github.com/186325

  ALSO:      This is very dirty still and has not been 
             abstracted for use. It is just solving our immediate problems.

  Use cases that must pass (and should be tested someday):
    * Clicking on links updates layout
    * Click around a bit and then use back/forward buttons