On Sun, Jul 26, 2009 at 9:24 AM, Michael
D'Auria<[email protected]> wrote:
>
> What orm are you guys using and which adapters? I am thinking about
> going with a document db for part of a side project and when I looked
> around, the dm couchdb adapter was removed from dm-adapters. I
> haven't searched around much for an adapter for mongodb.
I'm currently using MongoDB with merb in several applications as the
primary database. I've also used Redis as the primary DB with great
success. I don't use an ORM since this often doesn't make much sense,
if you have a one to one mapping of objects to collections this works
(I believe DM couchdb adapter made this assumption). To get the real
value of a document database or key-value store you're often using
some of the more interesting features like embedded queries, the mongo
increment/update operations, capped collections, etc. these don't map
well to your typical ORM.
In regard to the original question about authentication, the merb-auth
slices out of the box just require that you implement the class method
authenticate(login, pass) and return the user object if successfully
authenticated, or nil if unsuccessful. The class below is a self
contained User model object for merb which will enable you to
save/retrieve/authenticate users with merb-auth.
class User
attr_accessor :id, :login, :password
@@collection =
XGen::Mongo::Driver::Mongo.new.db('mydb').collection('mycollection')
def initialize(params=nil)
params = params.kind_of?(Hash) ? params : {}
@id, @login, @password = params[:_id], params[:login], params[:password]
end
def save
self.id ||= XGen::Mongo::Driver::ObjectID.new
@@collection.save({:_id => self.id, :login => self.login,
:password => self.password})
end
class << self
def get(login)
h = @@collection.find_first(:login => login)
h.nil? ? nil : User.new(h.to_mash)
end
def authenticate(login, password)
u = get(login)
if u && u.login == login && u.password == password
return u
end
nil
end
end
end
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