# 币种更新
ns = {}
for k in ('name', 'symbol', 'decimal_places', 'is_base', 'status'):
    v = params_kw.get(k)
    if v is not None:
        ns[k] = v
ns['id'] = params_kw.get('id', '')
if not ns['id']:
    return json.dumps({'success': False, 'message': 'id required'})
async with get_sor_context(request._run_ns, 'accounting') as sor:
    await sor.U('currency', ns)
    return json.dumps({'success': True, 'message': '币种已更新'})