def create_pick_list(node, modelclass, filtermap=None):
    vlist = []
    q = dbsession.query(modelclass)
    try:
        order_by = modelclass.ROW_DISPLAY[0]
        q = q.order_by(getattr(modelclass, order_by))
    except (AttributeError, __HOLE__):
        pass

    if filtermap:
        for name, value in filtermap.items():
            attrib = getattr(modelclass, name)
            q = q.filter(attrib==value)

    for dbrow in q:
        vlist.append((dbrow.id, str(dbrow), False))
    name = modelclass.__name__
    elid = "id_" + name
    node.add_label(name, elid)
    return node.add_select(vlist, name=name.lower(), multiple=False, id=elid)
dataset/ETHPy150Open kdart/pycopia/storage/pycopia/db/webhelpers.py/create_pick_list