//忽略掉不需要保存的字段
$form->ignore(['column1', 'column2', 'column3']);

// 在表单提交前调用
$form->submitted(function (Form $form) {
  //...
});
//保存前回调
$form->saving(function (Form $form) {
  $form->username
});
//保存后回调
$form->saved(function (Form $form) {
  $form->username
});
//获取保存后的自增长id的数值
$form->saved(function (Form $form) {
  $form->model()->id;
});

$form->ignore(['dbstation']);
//保存前回调
$form->saving(function (Form $form) {
  $type=\request('dbstation');
});
//保存后回调
$form->saved(function (Form $form) {
 $type=\request('dbstation');
});