How to preset fields with crud.create()?

[Joe Barnhart]

I'm trying to use the new Crud features in 1.56 (coming from T2) but
I'm having difficulty porting my application. I need to create
entries in a table that refer to the logged-in user. Before, I just
preset the id field to the id of the current user, but I don't see a
way to do that with crud.create(). What am I missing?

[mdipierro]

Try:

crud.create(db.table,onvalidation=lambda form:
form.vars.field='value')

OR

db.table.field.default='value'
crud.create(db.table)