Conversion rules

QBF works by transforming form arrays from one form to another. Here are the default rules. Note that a TriState is a set of 3 radios for Unchecked/Checked/Don't care.

Widget types

Source Type	Modified type	Notes
checkbox	Tristate
checkboxes	set of Tristates
date	date with unset
fieldset	fieldset	empty fieldsets are removed
file	removed
password	removed
radio	removed
radios	radios with unset
select	select multiple	multiple choices apply as OR
textarea	textfield	#cols honored
textfield	textfield	#cols honored
weight	weight with unset

Source special type	Modified type	Notes
button	removed
image_button	removed
submit	removed
form	removed
hidden	removed
markup	unchanged
item	unchanged
value	removed

Attributes

Name	Processing
#access	if FALSE, widget is removed
#ahah	removed
#after_build	removed
#description	removed