gistfile1.rb

require 'rubygems'
require 'yaml'
require 'rest-client'
require 'rails'

module Seat
  
  # store default database as well as auth credentials in yaml file
  CONFIG = YAML::load_file('config.yaml')
  
  # define the RestClient for the Seat module methods to use
  @r = RestClient::Resource.new 'http://localhost:'+CONFIG["port"].to_s, CONFIG["user"], CONFIG["pass"]
  
  class Model
    
    # include functionality from ActiveModel
    include ActiveModel::Validations
    include ActiveModel::Conversion
    extend ActiveModel::Naming
    
    # define attributes that every document will have
    attr_accessor :_id, :_rev, :type
    
    # define the database that the class will use
    # can override with use()
    @@db = CONFIG["default"]
    @@primary = nil
    
    def initialize(attributes = {})
      attributes.each do |name, value|
        send("#{name}=", value)
      end
      @type = self.class.to_s.downcase
      # in the future make the code below fire when whatever the primary variable is set
      if @_id.nil? && @@primary && self.instance_variable_defined?('@'+@@primary)
        @_id = @type+'.'+self.instance_variable_get('@'+@@primary).to_s
      end
    end
    
    def self.get (id)
      u = Seat.get '/'+(@@db||CONFIG["default"])+'/'+self.model_name.downcase+"."+id.to_s
      new(ActiveSupport::JSON.decode(u))
    end
    
    def self.view (view, args=nil)
      # puts "view: #{view}, args: #{args}"
      #new(:email=>"[email protected]") # if theres a single record return a Model.new(result)
    end
    
    def self.use (db)
      @@db = db.to_s
    end
    
    def self.primary (key)
      @@primary = key.to_s
      validates_presence_of key
      # make it so when the primary var is changed it changes the ID
      
    end
    
    def save
      if self.valid?
        remove_instance_variable(:@validation_context)
        remove_instance_variable(:@errors)
        save = Seat.put '/'+(@@db||CONFIG["default"])+'/'+@_id.to_s, ActiveSupport::JSON.encode(self)
        save = ActiveSupport::JSON.decode(save)
        @_rev = save["rev"]
      else
        false
      end
    end
    
    # used for ActiveModel::Conversion
    # tells it whether the model is "persisted"
    # in the database (AKA stored)
    def persisted?
      true
    end
    
    #def initialize (atts={})
    #  atts.each do |a|
    #    instance_variable_set('@'+a[0].to_s, a[1])
    #  end
    #end
    #def method_missing (method, value=nil)
    #  if method[-1]=="="
    #    @_errors << "tried to set @"+method.to_s.sub('=', '')+" = "+value
    #  else
    #    puts "Method Missing"
    #  end
    #end
  end
  
  def Seat.get (url)
    begin
      @r[url].get
    rescue => e
      puts e.response
    end
  end
  
  def Seat.put (url, doc)
    begin
      @r[url].put doc
    rescue => e
      puts e.response
    end
  end
end

class User < Seat::Model
  use 'stackd-development'
  primary :username
  attr_accessor :username, :other, :email
  #validates_presence_of :email
  #validates_format_of :email, :with => /^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$/i,
  #                            :message => "not a valid email"
end