def childFactory(self, ctx, name):
        """Since we created anchor tags linking to children of this resource
        directly by id, when the anchor is clicked, childFactory will be called
        with the appropriate id as the name argument."""
        try:
            ## Pass the id of the database item we want to be rendered on this page
            ## to the DBItem constructor. This integer will be used as the default data
            ## for this page.
            return DBItem(int(name))
        except __HOLE__:
            pass
            ## returning None results in a 404
dataset/ETHPy150Open twisted/nevow/examples/db/db.py/DBBrowser.childFactory