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@mharris717
Created April 23, 2010 20:51
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# Lets you define relations between ActiveRecord and Mongo objects
module MongoRelations
module InstanceMethods
# get an object representing the MongoMapper equivalent of this object
# for the purpose of access relations on the object
fattr(:mongo_obj) do
res = klass.mongo_class.new
my_id = id
res.class_eval do
define_method(:id) do
my_id
end
end
res
end
end
module ClassMethods
# get an anonymous class representing the MongoMapper equivalent of this class
fattr(:mongo_class) do
Class.new do
include MongoMapper::Document
end
end
def mongo_has_many(name,ops={},&b)
define_method(name) do
mongo_obj.send(name)
end
mongo_class.send(:has_many, name, ops, &b)
end
end
def self.included(mod)
mod.send(:include,InstanceMethods)
mod.extend(ClassMethods)
end
end
class User < ActiveRecord::Base
mongo_has_many :workspaces, :foreign_key => :user_ids
end
class Workspace
include MongoMapper::Document
key :user_ids
key :name
end
User.first.workspaces.find('4bd0c170d489e6af74000130')
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