Automatically fill a html form
Void autoFill( ElementTree form, DataSource mainvars, Dict<String, [String]> extravars=Dict::new() )
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.
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;
}
Kaya standard library by Edwin Brady, Chris Morris and others ([email protected]). For further information see http://kayalang.org/
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.
WebCommon.DataSource (3kaya)