ORM conceptual question

[eluser]Neeraj Kumar[/eluser]
Hi all!

I am using Datamapper as ORM for my application. But I think i need an answer to a question.

ORMs generally saves a lot of time. but makes controller functions very big. What I need to know is that is it correct to use big ORM functions in controller. I mean they make our controllers FAT, which is not generally adviced, right?

what are your insights?