active_record_rack.ru

module Rack
  
  require 'rails/all'

  class Actor < ::ActiveRecord::Base
  end 

  class ActiveRecord
    def initialize
      setup
    end 

    def call(env)
      [200, { 'Content-Type' => 'text/html' }, 'Hello World']
    end 

    def setup
      ::ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :database => ":memory:")
      ::ActiveRecord::Schema.define(:version => 1) do
        create_table :actors do |t| 
          t.column :name, :string
        end 
        Actor.create(:name => 'Alpha')
      end 
     
    end 

    def close
      ::ActiveRecord::Base.connection.tables.each do |table|
        ::ActiveRecord::Base.connection.drop_table(table)
      end 
    end 
  end 

end


use Rack::Lint
use Rack::ContentLength
run Rack::ActiveRecord.new

config

--- 
BUNDLE_DISABLE_SHARED_GEMS: "1"

Gemfile

source :gemcutter

gem 'rack'
gem 'rails', '3.0.0'
gem 'sqlite3-ruby'

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:
    abstract (1.0.0)
    actionmailer (3.0.0)
      actionpack (= 3.0.0)
      mail (~> 2.2.5)
    actionpack (3.0.0)
      activemodel (= 3.0.0)
      activesupport (= 3.0.0)
      builder (~> 2.1.2)
      erubis (~> 2.6.6)
      i18n (~> 0.4.1)
      rack (~> 1.2.1)
      rack-mount (~> 0.6.12)
      rack-test (~> 0.5.4)
      tzinfo (~> 0.3.23)
    activemodel (3.0.0)
      activesupport (= 3.0.0)
      builder (~> 2.1.2)
      i18n (~> 0.4.1)
    activerecord (3.0.0)
      activemodel (= 3.0.0)
      activesupport (= 3.0.0)
      arel (~> 1.0.0)
      tzinfo (~> 0.3.23)
    activeresource (3.0.0)
      activemodel (= 3.0.0)
      activesupport (= 3.0.0)
    activesupport (3.0.0)
    arel (1.0.1)
      activesupport (~> 3.0.0)
    builder (2.1.2)
    erubis (2.6.6)
      abstract (>= 1.0.0)
    i18n (0.4.2)
    mail (2.2.9)
      activesupport (>= 2.3.6)
      i18n (~> 0.4.1)
      mime-types (~> 1.16)
      treetop (~> 1.4.8)
    mime-types (1.16)
    polyglot (0.3.1)
    rack (1.2.1)
    rack-mount (0.6.13)
      rack (>= 1.0.0)
    rack-test (0.5.6)
      rack (>= 1.0)
    rails (3.0.0)
      actionmailer (= 3.0.0)
      actionpack (= 3.0.0)
      activerecord (= 3.0.0)
      activeresource (= 3.0.0)
      activesupport (= 3.0.0)
      bundler (~> 1.0.0)
      railties (= 3.0.0)
    railties (3.0.0)
      actionpack (= 3.0.0)
      activesupport (= 3.0.0)
      rake (>= 0.8.4)
      thor (~> 0.14.0)
    rake (0.8.7)
    sqlite3-ruby (1.3.2)
    thor (0.14.4)
    treetop (1.4.8)
      polyglot (>= 0.3.1)
    tzinfo (0.3.23)

PLATFORMS
  ruby

DEPENDENCIES
  rack
  rails (= 3.0.0)
  sqlite3-ruby