#DynamoModel
Provies a simple object oriented abstraction that allows you to persist objects to DynamoDB.
This is not a complete drop in replacement for ActiveRecord.
Instead it focuses on allowing a plugable persistence mechanism for a domain model that was designed for polyglot presistance strategies.
##Usage
Using DynamoModel is easy. All you have to do is create a ruby class.
class Tweet
include DynamoModel::Properties
include DynamoModel::Persistence
property :content
property :twitter_user_id
#You can provide a default value for your properties
property :followers_count, :default => 0
# Dynamo can only store Strings, Numbers, and Array.
# If you want to store anything else you have to provide a custom converter
# This converter allows you to store anything that can be converted to on of the
# dynamo compatible types
property :posted_at, :conversion => proc { |v| v.to_s }
end
#Now you can just create an object and save it
Tweet.new(:content => "I saw justin beiber", :twitter_user_id => "123456").save###Migrations DynamoMigration provides a convienient way to create dynamo tables as part of your rails migrations.
class CreateTweetTable < ActiveRecord::Migration
include DynamoModel::Migrations
self.up
create_dynamo_table :tweets
end
end
end