I downloaded the cookbook example
https://mdp.cti.depaul.edu/appliances/default/download/app.source.130193843596.tar
and installed it. It seems that IS_NOT_IN_DB
db.category.name.requires=[IS_NOT_EMPTY(),IS_NOT_IN_DB(db,'category.name')]
is not working for non ASCII characters. For example, I can insert
multiple categories using a name containing an Umlaut: 'Süßspeise', or
as a trivial example the Euro sign '€'.
Markus
Yes, this works fine now, thank you.