Custom Class or new Model?

[eluser]mddd[/eluser]
I would say a model, because I feel that libraries are more for general "tools" that could be re-used in other projects. My guess is that this would be specific to your application and not re-used. Therefore I think it's a model. If you made it general enough so use again, you could make it a library. In the end, it's all semantics.. both will do just fine.