ActsAsLogger 0.1

gistfile1.rb

module ActsAsLogger
  module Logger
    def self.included(base)
      base.extend(ClassMethods)
    end
    
    module ClassMethods
      def acts_as_logger(options={})
        include InstanceMethods
        
        class_eval do
          embeds_many :logs, :class_name => "ActsAsLogger::Log"
        end
        
        Log.class_eval do
          embedded_in self.to_s.downcase.to_sym, :inverse_of => :logs
          
          #receber options[:models] e deixar dinamico
          references_one :user
        end
        
        #receber options[:models] e deixar dinamico
        User.class_eval do
          referenced_in :log, :class_name => "ActsAsLogger::Log"
        end
        
      end
    end
    
    module InstanceMethods
      
      def created_by=(user)
        raise "created by is not null" unless self.logs.where(:action => :create).empty?
        self.logs << ActsAsLogger::Log.new(:action => :create, :user => user)
      end
      
      def created_by
        self.logs.where(:action => :create).first
        
      end
      
      def updated_by=(user)
        self.logs << ActsAsLogger::Log.new(:action => :update, :user => user)
      end
      
      def updated_by
        self.logs.where(:action => :update).desc(:created_at).first
      end
      
    end

  end
end



#### arquivo separado
module ActsAsLogger
  class Log
    include Mongoid::Document
    include Mongoid::Timestamps
  
    field :action
  end
end