Hiding fields in new and edit forms

[Lanfio Orelli]

I've got a generated field in a MySQL Database (that is, a virtual column. MySQL automatically computes values for that field based on a function on other fields).

The user should not be asked to fill that field (although, after SAVE, whatever the user entered, the field shows the value computed by MySQL) so, I'd like that that field doesn't show up in new and edit forms.

I've tried to set visibility:update=hidden and ignore=1 in fields.ini, but it doesn't seem to work.

What I'm doing wrong ?

Regards