> > Can "default" be equal to a variable dependent on another field in the > same table? >
I haven't looked at your original question in detail, but regarding the above question about defaults, no, they can't be dependent on other fields in the same table (though they can be dependent on request.vars, including request.vars that have been submitted to fill other fields in the table). An alternative is to set the "compute" attribute of the field, which can (and is intended to) depend on other fields in the table (see http://web2py.com/books/default/chapter/29/6#Computed-fields). You can insert a value directly into the field, but if no value is provided, it will compute a value according to the compute function. Note, by default computed fields are not shown in SQLFORMs, though you can explicitly list them among the fields to be shown. Anthony