Rails: Using custom classes in Rails

I want to pass an array of custom objects to the view layer to render. Rails expects to be able to call "model_name" and a bunch of other methods for routing on its models.

If I want to make a custom class that I can pass to methods like "render", what methods does it need to respond to?

Ideally I would like these objects to be usable outside rails as well.

If you are using Rails 3 then it might be worth extending ActiveModel.

See these posts for more info:

• ActiveModel: Make Any Ruby Object Feel Like ActiveRecord
• Rails 3.0′s ActiveModel: How To Give Ruby Classes Some ActiveRecord Magic