This package implements a widget that lets users enter a query and select from the results.

The widget works with zope.schema.Choice-fields supplying a query source [1], optionally in conjunction with a collection field which then allows multiple selections.

The easiest way to use the widget is to provide one of the following as widgetFactory:

• z3c.formwidget.query.widget.QuerySourceFieldRadioWidget
• z3c.formwidget.query.widget.QuerySourceFieldCheckboxWidget

[1] The source needs to implement IQuerySource as defined in this package.