删除操作

简介

Filament 包含一个能够删除 Eloquent 记录的操作。点击触发按钮时，会打开一个请求用户确认模态框。你可以像这样使用它：

use Filament\Actions\DeleteAction;

DeleteAction::make()

或者，如果你想添加表格批量操作按钮，以便用户可以选择删除哪些行，请使用 Filament\Actions\DeleteBulkAction：

use Filament\Actions\DeleteBulkAction;
use Filament\Tables\Table;

public function table(Table $table): Table
{
    return $table
        ->toolbarActions([
            DeleteBulkAction::make(),
        ]);
}

删除后重定向

使用 successRedirectUrl() 方法你可以设置删除记录后的重定向网址：

use Filament\Actions\DeleteAction;

DeleteAction::make()
    ->successRedirectUrl(route('posts.list'))

除了 $record 之外，successRedirectUrl() 函数可以注入各种 utility 作为参数。

Learn more about utility injection.

Utility	Type	Parameter	Description
Action	Filament\Actions\Action	$action	The current action instance.
Arguments	array<string, mixed>	$arguments	The array of arguments passed to the action when it was triggered.
Data	array<string, mixed>	$data	The array of data submitted from form fields in the action's modal. It will be empty before the modal form is submitted.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current action, if one is attached.
Mounted actions	array<Filament\Actions\Action>	$mountedActions	The array of actions that are currently mounted in the Livewire component. This is useful for accessing data from parent actions.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current action, if one is attached.
Schema	Filament\Schemas\Schema	$schema	[Actions in schemas only] The schema object that this action belongs to.
Schema component	Filament\Schemas\Components\Component	$schemaComponent	[Actions in schemas only] The schema component that this action belongs to.
Schema component state	mixed	$schemaComponentState	[Actions in schemas only] The current value of the schema component.
Schema get function	Filament\Schemas\Components\Utilities\Get	$schemaGet	[Actions in schemas only] A function for retrieving values from the schema data. Validation is not run on form fields.
Schema operation	string	$schemaOperation	[Actions in schemas only] The current operation being performed by the schema. Usually <code>create</code>, <code>edit</code>, or <code>view</code>.
Schema set function	Filament\Schemas\Components\Utilities\Set	$schemaSet	[Actions in schemas only] A function for setting values in the schema data.
Selected Eloquent records	Illuminate\Support\Collection	$selectedRecords	[Bulk actions only] The Eloquent records selected in the table.
Table	Filament\Tables\Table	$table	[Actions in tables only] The table object that this action belongs to.

自定义删除通知

记录成功删除后，会派送通知给用户，说明操作成功：

要自定义通知标题，请使用 successNotificationTitle() 方法：

use Filament\Actions\DeleteAction;

DeleteAction::make()
    ->successNotificationTitle('User deleted')

除了允许静态值之外，successNotificationTitle() 方法也可以接受函数动态计算其值。你可以将各种 utility 作为参数注入到函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Action	Filament\Actions\Action	$action	The current action instance.
Arguments	array<string, mixed>	$arguments	The array of arguments passed to the action when it was triggered.
Data	array<string, mixed>	$data	The array of data submitted from form fields in the action's modal. It will be empty before the modal form is submitted.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current action, if one is attached.
Mounted actions	array<Filament\Actions\Action>	$mountedActions	The array of actions that are currently mounted in the Livewire component. This is useful for accessing data from parent actions.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current action, if one is attached.
Schema	Filament\Schemas\Schema	$schema	[Actions in schemas only] The schema object that this action belongs to.
Schema component	Filament\Schemas\Components\Component	$schemaComponent	[Actions in schemas only] The schema component that this action belongs to.
Schema component state	mixed	$schemaComponentState	[Actions in schemas only] The current value of the schema component.
Schema get function	Filament\Schemas\Components\Utilities\Get	$schemaGet	[Actions in schemas only] A function for retrieving values from the schema data. Validation is not run on form fields.
Schema operation	string	$schemaOperation	[Actions in schemas only] The current operation being performed by the schema. Usually <code>create</code>, <code>edit</code>, or <code>view</code>.
Schema set function	Filament\Schemas\Components\Utilities\Set	$schemaSet	[Actions in schemas only] A function for setting values in the schema data.
Selected Eloquent records	Illuminate\Support\Collection	$selectedRecords	[Bulk actions only] The Eloquent records selected in the table.
Table	Filament\Tables\Table	$table	[Actions in tables only] The table object that this action belongs to.

使用 successNotification() 你可以自定义整个通知：

use Filament\Actions\DeleteAction;
use Filament\Notifications\Notification;

DeleteAction::make()
    ->successNotification(
       Notification::make()
            ->success()
            ->title('User deleted')
            ->body('The user has been deleted successfully.'),
    )

除了允许静态值之外，successNotification() 方法也可以接受函数动态计算其值。你可以将各种 utility 作为参数注入到函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Action	Filament\Actions\Action	$action	The current action instance.
Arguments	array<string, mixed>	$arguments	The array of arguments passed to the action when it was triggered.
Data	array<string, mixed>	$data	The array of data submitted from form fields in the action's modal. It will be empty before the modal form is submitted.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current action, if one is attached.
Mounted actions	array<Filament\Actions\Action>	$mountedActions	The array of actions that are currently mounted in the Livewire component. This is useful for accessing data from parent actions.
Notification	Filament\Notifications\Notification	$notification	The default notification object, which could be a useful starting point for customization.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current action, if one is attached.
Schema	Filament\Schemas\Schema	$schema	[Actions in schemas only] The schema object that this action belongs to.
Schema component	Filament\Schemas\Components\Component	$schemaComponent	[Actions in schemas only] The schema component that this action belongs to.
Schema component state	mixed	$schemaComponentState	[Actions in schemas only] The current value of the schema component.
Schema get function	Filament\Schemas\Components\Utilities\Get	$schemaGet	[Actions in schemas only] A function for retrieving values from the schema data. Validation is not run on form fields.
Schema operation	string	$schemaOperation	[Actions in schemas only] The current operation being performed by the schema. Usually <code>create</code>, <code>edit</code>, or <code>view</code>.
Schema set function	Filament\Schemas\Components\Utilities\Set	$schemaSet	[Actions in schemas only] A function for setting values in the schema data.
Selected Eloquent records	Illuminate\Support\Collection	$selectedRecords	[Bulk actions only] The Eloquent records selected in the table.
Table	Filament\Tables\Table	$table	[Actions in tables only] The table object that this action belongs to.

要完全禁用通知，请使用 successNotification(null) 方法：

use Filament\Actions\DeleteAction;

DeleteAction::make()
    ->successNotification(null)

生命周期钩子

你可以使用 before() 和 after() 方法，在记录删除之前及之后执行代码：

use Filament\Actions\DeleteAction;

DeleteAction::make()
    ->before(function () {
        // ...
    })
    ->after(function () {
        // ...
    })

这些函数可以注入各种 utility 作为参数。

Learn more about utility injection.

Utility	Type	Parameter	Description
Action	Filament\Actions\Action	$action	The current action instance.
Arguments	array<string, mixed>	$arguments	The array of arguments passed to the action when it was triggered.
Data	array<string, mixed>	$data	The array of data submitted from form fields in the action's modal. It will be empty before the modal form is submitted.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current action, if one is attached.
Mounted actions	array<Filament\Actions\Action>	$mountedActions	The array of actions that are currently mounted in the Livewire component. This is useful for accessing data from parent actions.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current action, if one is attached.
Schema	Filament\Schemas\Schema	$schema	[Actions in schemas only] The schema object that this action belongs to.
Schema component	Filament\Schemas\Components\Component	$schemaComponent	[Actions in schemas only] The schema component that this action belongs to.
Schema component state	mixed	$schemaComponentState	[Actions in schemas only] The current value of the schema component.
Schema get function	Filament\Schemas\Components\Utilities\Get	$schemaGet	[Actions in schemas only] A function for retrieving values from the schema data. Validation is not run on form fields.
Schema operation	string	$schemaOperation	[Actions in schemas only] The current operation being performed by the schema. Usually <code>create</code>, <code>edit</code>, or <code>view</code>.
Schema set function	Filament\Schemas\Components\Utilities\Set	$schemaSet	[Actions in schemas only] A function for setting values in the schema data.
Selected Eloquent records	Illuminate\Support\Collection	$selectedRecords	[Bulk actions only] The Eloquent records selected in the table.
Table	Filament\Tables\Table	$table	[Actions in tables only] The table object that this action belongs to.

改进批量删除操作的性能

默认情况下，DeleteBulkAction 将会将所有 Eloquent 记录加载到内存中，然后循环并逐一删除它们。

如果删除的记录数量太大，你可能会希望使用 chunkSelectedRecords() 方法，一次或许较小的数据量。这能够减少应用的内存使用：

use Filament\Actions\DeleteBulkAction;

DeleteBulkAction::make()
    ->chunkSelectedRecords(250)

Filament 在删除记录前将它们加载入内存出于两个原因：

• 允许在删除之前使用模型策略对集合中的单个记录进行授权(比如，使用 authorizeIndividualRecords('delete') 策略)。
• 确保在删除记录时运行模型事件，例如模型观察者中的 deleting 和 deleted 事件。

如果你不需要单独的记录策略授权和模型事件，则可以使用 fetchSelectedRecords(false) 方法，该方法在删除记录之前不会将其提取到内存中，而是在单次查询中删除它们：

use Filament\Actions\DeleteBulkAction;

DeleteBulkAction::make()
    ->fetchSelectedRecords(false)