How to create a Scala custom validator with Play2?

Question

I wrote this excellent question:

The point is, the solution applies to the Java Play API.

How to write a custom validator in Scala ?

score 1 · Answer 1 · answered Mar 20 '12 at 20:25

1

Use the verifying method on Mapping.

For example:

Form("foo" -> text.verifying{ txt => txt.startsWith("bar") })

answered Mar 20 '12 at 20:25

ok, maybe I did't ask my question properly... I want to define a validator as such: `val userForm = Form( mapping( "name" -> text, "authtoken" -> authenticityToken )(User.apply)(User.unapply) )` – Olivier Refalo Mar 20 '12 at 21:15
How to define this authenticityToken contraint/function/method or whatever it may be – Olivier Refalo Mar 20 '12 at 21:17
I don’t think that’s currently possible because I guess you’d like to read the session and you don’t have access to it in validators. – Julien Richard-Foy Mar 20 '12 at 21:25
well you have access to the session in java. I would think scala too – Olivier Refalo Mar 20 '12 at 21:41

1 Answers1