[web2py] 'Table' object has no attribute 'attr'

I have used a form in a view and want to update a record after submit: View: {{=SQLFORM(db.activity, record = a.id, deletable = True, hidden=dict(attr='chgact'))}} controller: if (request.vars['attr'] == 'chgact') and (request.vars['delete_this_record'] != 'on'):

Re: [web2py] 'Table' object has no attribute 'attr'

The book says in http://web2py.com/books/default/chapter/29/07/forms-and-validators causes the hidden fields to be passed with the submission, no more, no less. form.accepts(...) is not intended to read the received hidden fields and move them into form.vars. The reason is security. Hidden fields