laravel-admin select单向联动编辑bug修复方法

```php
            if (request()->route()->getActionMethod() == 'create') {
                $form->select('type_id', '推广类型')->options([1 => '套餐', 2 => '产品'])->load('good_id', '/admin/bannersType');

$form->select('good_id', '套餐/产品');

} elseif (request()->route()->getActionMethod() == 'edit') {
                $form->select('type_id', '推广类型')->options([1 => '套餐', 2 => '产品',])->load('good_id', '/admin/bannersType');

$form->select('good_id', '套餐/产品信息')->options(function ($form) use ($id) {
                    $Banner = Banner::findOrFail($id);
                    if ($Banner->type_id == 1) {
                        return Package::findOrFail($form)->pluck('p_title as text', 'id');
                    } elseif ($Banner->type_id == 2) {
                        return Product::findOrFail($form)->pluck('p_title as text', 'id');
                    }
                });
            }
```

```
    if (request()->isMethod('POST')) {
                //保存
                $form->saving(function (Form $form) {
                    $form->model()->setAttribute('type_id', request('type_id'));
                    $form->model()->setAttribute('good_id', request('good_id'));
                });
            } else if (request()->isMethod('PUT')) {
                //更新
                $form->saving(function (Form $form) {
                    $form->model()->setAttribute('type_id', request('type_id'));
                    $form->model()->setAttribute('good_id', request('good_id'));
                });
            }
```

laravel-admin select单向联动编辑bug修复方法

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