[TYPO3-mvc] Validation in TCA and extbase

[Jigal van Hemert]

Hi All,

I'm just scratching the surface of extbase and I'm working on my first 
(simple) extension.
When viewing the single view (showAction) of a record I got an error 
message about a validation which failed for that record (no details 
unfortunately about which field and which validator).

I looked a bit closer at the record and noticed that I had set up a 
validator EmailAddress for a text field, but in the backend I had 
entered an invalid email address in the text field.
There is no eval for email addresses available in TCA AFAIK.

How can this be solved? Are all eval possibilities available in 
@validate? Am I kind of "forced" to build the BE interface in extbase too?

Regards,
---
Jigal van Hemert.