check_box, are values saved by default? what type in DB

Are checkboxes saved by default into the DB when you have a field with
the same name? I tried with the field as a boolean and then as a
string but both times value was not saved. Even though
validates_acceptance_of works beautifully.

Can anyone share some insight on check_box and rails :-).

Thanks.

This is weird. If I take validates_acceptance_of off the checkbox
then the value is being passed into the db. Once I put it on the
field then null is passed into the DB... even when it passes. Does
this make sense to anyone?