airy

require 'sinatra'
require 'sinatra-websocket'
require 'tilt/erubis'

set :server, 'thin'
set :sockets, []

get '/' do
  if !request.websocket?
    erb :index

airy

require 'sinatra/base'

class MyApp < Sinatra::Base
  @@my_app = {}
  def self.new(*) self < MyApp ? super : Rack::URLMap.new(@@my_app) end
  def self.map(url) @@my_app[url] = self end

  class FooController < MyApp
    map '/foo'

airy

class Profile
  include Mongoid::Document
  # ....
  belongs_to :user
  key :user_id
  alias :to_s :_id

  has_and_belongs_to_many :following, :class_name => 'Profile', :inverse_of => :followers
  has_and_belongs_to_many :followers, :class_name => 'Profile', :inverse_of => :following
  # ....

airy

rails g migration Something attachable:polymorphic
or
rails g scaffold Something attachable:polymorphic

may can generate migration like this:

  def self.up
    create_table :somethings do |t|
      t.references attachable, polymorphic => true

airy

*filter


#  Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0
-A INPUT -i lo -j ACCEPT
-A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT


#  Accepts all established inbound connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT