"Hidden" or cool features in Grails

[andrew ennamorato]

Dave,

What is one hidden or interesting feature in Grails that isn't apparent on first use or first application that you develop with it?
For me, one of the neatest features I discovered after playing with Grails for a bit was the Spring DSL that lets you create/manage Spring beans with Groovy code, not just xml.

In your opinion, what one feature makes you go "This is so cool!"? I know there are many with Grails.

[Dave Klein]

That's a great question! I hope others will join in and give their thoughts on this too.

It's hard to pick one, but the ORM mapping DSL, like the Spring DSL is awesome and not often shown in demos. I much prefer a concise mapping block to annotations when working with a legacy DB.

Anyone else?

Dave