89 lines
1.4 KiB
Markdown
89 lines
1.4 KiB
Markdown
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# 模型表单回调
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`model-form`目前提供了两个方法来接收回调函数：
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```php
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//保存前回调
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$form->saving(function (Form $form) {
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//...
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});
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//保存后回调
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$form->saved(function (Form $form) {
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//...
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});
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```
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可以从回调参数`$form`中获取当前提交的表单数据：
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```php
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$form->saving(function (Form $form) {
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dump($form->username);
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});
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```
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获取获取模型中的数据
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```php
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$form->saved(function (Form $form) {
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$form->model()->id;
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});
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```
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可以直接在回调中返回`Symfony\Component\HttpFoundation\Response`的实例，来跳转或进入页面：
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```php
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$form->saving(function (Form $form) {
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// 返回一个简单response
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return response('xxxx');
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});
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$form->saving(function (Form $form) {
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// 跳转页面
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return redirect('/admin/users');
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});
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$form->saving(function (Form $form) {
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// 抛出异常
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throw new \Exception('出错啦。。。');
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});
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```
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返回错误或者成功信息在页面上：
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```php
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use Illuminate\Support\MessageBag;
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// 抛出错误信息
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$form->saving(function ($form) {
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$error = new MessageBag([
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'title' => 'title...',
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'message' => 'message....',
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]);
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return back()->with(compact('error'));
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});
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// 抛出成功信息
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$form->saving(function ($form) {
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$success = new MessageBag([
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'title' => 'title...',
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'message' => 'message....',
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]);
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return back()->with(compact('success'));
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});
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```
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