Function trigger_onchange

pywebio/io_ctrl.py:305–323

(event_data, onchange_funcs)

def trigger_onchange(event_data, onchange_funcs):
    name = event_data['name']
    onchange_func = onchange_funcs[name]

    # save current input name to session, so that the `input_update()` function can get it
    task_id = get_current_task_id()
    onchange_trigger_key = 'onchange_trigger-' + task_id
    previous_name = get_current_session().internal_save.get(onchange_trigger_key)
    get_current_session().internal_save[onchange_trigger_key] = name  # used in `pywebio.input.input_update()`

    try:
        onchange_func(event_data['value'])
    except Exception as e:
        logger.warning('Get %r in onchange function for name:"%s"', e, name)
    finally:
        if previous_name is None:
            get_current_session().internal_save.pop(onchange_trigger_key, None)
        else:
            get_current_session().internal_save[onchange_trigger_key] = previous_name


@chose_impl