NAME

       Webapp::autoFill - Automatically fill a HTML form

SYNOPSIS

       Void autoFill( ElementTree form, DataSource mainvars, Dict<String, [String]>  extravars=Dict::new() )

ARGUMENTS

       form The form element (or a subset of that if you only wish to automatically fill a part of the form.

       mainvars The data source to use (e.g.  DataPost )

       extravars  An  optional  dictionary  mapping keys to lists of values, to allow a form to be automatically
       filled from a database. You may or may not need to use DataNone as your main data source in this case.

DESCRIPTION

       Automatically fill a HTML form based on data from a  particular  data  source.  This  makes  it  easy  to
       construct web forms with error handling - see the webapp tutorial for more information.

    ElementTree OnHello(Int dummy) {
        div = anonymousBlock; // we create this temporarily.
        fname = incomingValue("fname",DataPost);
        lname = incomingValue("lname",DataPost);
        if (fname != "" && lname != "") {
            p = addParagraph(div,"Hello "+fname+" "+lname);
            return p;
        } else {
            form = HelloForm();
    // if they entered one of first and last name, make sure it's still in the form
            autoFill(form,DataPost);
            return form;
        }
    }

    ElementTree helloForm() {
        parent = anonymousBlock;
        form = addLocalForm(parent);
        f1 = addFieldset(form,"Who are you?");
        input = addLabelledInput(f1,"Your First Name",InputText,"fname","",0);
        input = addLabelledInput(f1,"Your Last Name",InputText,"lname","",0);
        submit = addLocalControlInput(f1,"Say hello",OnHello,1);
        return form;
    }

AUTHORS

       Kaya  standard  library  by  Edwin  Brady,  Chris  Morris  and  others  (kaya@kayalang.org).  For further
       information see http://kayalang.org/

LICENSE

       The Kaya standard library is free software; you can redistribute it and/or modify it under the  terms  of
       the  GNU  Lesser  General  Public  License  (version  2.1  or any later version) as published by the Free
       Software Foundation.

RELATED

       WebCommon.DataSource (3kaya)

Kaya                                                July 2013                             Webapp.autoFill(3kaya)