joshnesbitt

It's a little known fact that you can easily substitute the default Rails HTML error pages with something more pleasant. You may have noticed the 404.html, 422.html and 500.html files that are generated with every new Rails project and wondered if there's a clean way to style them like the rest of your application. There is, and it's surprisingly simple.

Basic Implementation

The default status code templates are served by a Rack exception application. You can override this to be any Rack compatible app, including your applications router:

# config/application.rb
config.exceptions_app = self.routes

joshnesbitt

Mondo Referral Bump

Thanks to @cbarratt for writing this. Tested on Ruby 2.2.2.

Installation

Install the dependencies:

gem install capybara ffaker poltergeist selenium-webdriver chromedriver-helper

joshnesbitt

class Hub
  class << self
    NAMESPACE_SEPARATOR = ':'

    def publish(event, payload = {})
      handlers[event].each do |handler|
        handler.call(payload)
      end
    end

joshnesbitt

class VariableLang

  def initialize(path)
    @path = path
    @content = File.read(path)
  end

  def render(locals = {})
    locals.inject(@content.dup) do |buffer, vars|
      key = vars.first

joshnesbitt

price_list = "orange = 10p apple = 20p bread = £1.10 tomato = 25p cereal = £2.34"
list = <<-LIST
 list
 orange
 apple
 apple
 orange
 tomato
 cereal
 bread

joshnesbitt

class MyClass

  def one_method
    puts "Hey!"
  end

end

class MyClass

joshnesbitt

class MyClass

  def self.metaclass
    class << self; self; end
  end

end

puts MyClass.metaclass.inspect

joshnesbitt

class Company
  TooManyManagingDirectorsError = Class.new(Exception)

  class Department
    attr_reader :company,
                :name,
                :employees

    def initialize(company, name, &block)
      @company = company

joshnesbitt

module BannedWordFilter
  class Filter
    class << self

      BANNED_WORDS = %w(
        fuck
        shit
        banned
      )

joshnesbitt

function code_highlight(){
  style=${1:-zmrok}
  pbpaste | highlight --syntax=rb --style=$style -O rtf | pbcopy
}