rails--rails/railties/lib/generators/active_record.rb

require 'generators/named_base'
require 'generators/migration'
require 'generators/active_model'
require 'active_record'

module ActiveRecord
  module Generators
    class Base < Rails::Generators::NamedBase #:nodoc:
      include Rails::Generators::Migration

      protected
        # Implement the required interface for Rails::Generators::Migration.
        #
        def next_migration_number(dirname) #:nodoc:
          if ActiveRecord::Base.timestamped_migrations
            Time.now.utc.strftime("%Y%m%d%H%M%S")
          else
            "%.3d" % (current_migration_number(dirname) + 1)
          end
        end
    end

    class ActiveModel < Rails::Generators::ActiveModel #:nodoc:
      def self.all(klass)
        "#{klass}.all"
      end

      def self.find(klass, params=nil)
        "#{klass}.find(#{params})"
      end

      def self.build(klass, params=nil)
        if params
          "#{klass}.new(#{params})"
        else
          "#{klass}.new"
        end
      end

      def save
        "#{name}.save"
      end

      def update_attributes(params=nil)
        "#{name}.update_attributes(#{params})"
      end

      def errors
        "#{name}.errors"
      end

      def destroy
        "#{name}.destroy"
      end
    end
  end
end