I've searched and not found a z3c.form-widget that can support a source
that supports text queries (a la Plone's uberselectionwidget).
The spec is not defined in Zope, but it's basically:
class IQuerySource(ISource):
def search(query_string):
"""Return values that matches query."""
In the USW, the widget renders an input field and if applicable, a list
of results from which you can make your choice.
I think this widget should live in z3c.widget.
Hints/suggestions?
\malthe
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