[TYPO3-mvc] error in TCA: (travel) Probably value mismatch with fieldtype.

[Domi]

> it should work if you configure the relation as IRRE relation with
> "foreign_field" set to "city". That's the only working way for a
> bidirectional relation without a intermediate table. Your current TCA
> setup would store the relations as CSV values in the field "travel", and
> that also only from side of the city. So just use IRRE for
> tx_..._model_city.travel and you're fine.
Hi Franz,

thanks for your answer. Is it possible for selecting an already stored 
dataset with IRRE? This was actually the reason why I avoided it and 
tried my luck with type="select"

Cheers,
Dominic