Radio

#简介

单选框(Radio)提供了一组单选按钮，用以从一组预定义选项中选择单个值：

use Filament\Forms\Components\Radio;

Radio::make('status')
    ->options([
        'draft' => 'Draft',
        'scheduled' => 'Scheduled',
        'published' => 'Published'
    ])

除了静态值，options() 方法也接受函数静态计算。你可以将多个 utility 作为参数注入到该函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Field	Filament\Forms\Components\Field	$component	The current field component instance.
Get function	Filament\Schemas\Components\Utilities\Get	$get	A function for retrieving values from the current form data. Validation is not run.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current schema.
Operation	string	$operation	The current operation being performed by the schema. Usually create, edit, or view.
Raw state	mixed	$rawState	The current value of the field, before state casts were applied. Validation is not run.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current schema.
State	mixed	$state	The current value of the field. Validation is not run.

#设置选项描述

使用 descriptions() 方法，你可以为每个选项提供描述说明：

use Filament\Forms\Components\Radio;

Radio::make('status')
    ->options([
        'draft' => 'Draft',
        'scheduled' => 'Scheduled',
        'published' => 'Published'
    ])
    ->descriptions([
        'draft' => 'Is not visible.',
        'scheduled' => 'Will be visible.',
        'published' => 'Is visible.'
    ])

除了静态值，descriptions() 方法也接受函数静态计算。你可以将多个 utility 作为参数注入到该函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Field	Filament\Forms\Components\Field	$component	The current field component instance.
Get function	Filament\Schemas\Components\Utilities\Get	$get	A function for retrieving values from the current form data. Validation is not run.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current schema.
Operation	string	$operation	The current operation being performed by the schema. Usually create, edit, or view.
Raw state	mixed	$rawState	The current value of the field, before state casts were applied. Validation is not run.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current schema.
State	mixed	$state	The current value of the field. Validation is not run.

#将选项放置在同一行

你可能希望让所有选项显示在同一行，请使用 inline() 方法：

use Filament\Forms\Components\Radio;

Radio::make('feedback')
    ->label('Like this post?')
    ->boolean()
    ->inline()

或者，你也可以传入一个布尔值，以控制选项是否放置在同一行中：

use Filament\Forms\Components\Radio;

Radio::make('feedback')
    ->label('Like this post?')
    ->boolean()
    ->inline(FeatureFlag::active())

除了静态值，inline() 方法也接受函数静态计算。你可以将多个 utility 作为参数注入到该函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Field	Filament\Forms\Components\Field	$component	The current field component instance.
Get function	Filament\Schemas\Components\Utilities\Get	$get	A function for retrieving values from the current form data. Validation is not run.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current schema.
Operation	string	$operation	The current operation being performed by the schema. Usually create, edit, or view.
Raw state	mixed	$rawState	The current value of the field, before state casts were applied. Validation is not run.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current schema.
State	mixed	$state	The current value of the field. Validation is not run.

#禁用指定选项

你可以使用 disableOptionWhen() 方法禁用指定选项。它接受一个闭包，在该闭包中确定指定值 $value 的选项是否禁用：

use Filament\Forms\Components\Radio;

Radio::make('status')
    ->options([
        'draft' => 'Draft',
        'scheduled' => 'Scheduled',
        'published' => 'Published',
    ])
    ->disableOptionWhen(fn (string $value): bool => $value === 'published')

你可以将多个 utility 作为参数注入到该函数中。

Learn more about utility injection.

Utility	Type	Parameter	Description
Field	Filament\Forms\Components\Field	$component	The current field component instance.
Get function	Filament\Schemas\Components\Utilities\Get	$get	A function for retrieving values from the current form data. Validation is not run.
Option label	string | Illuminate\Contracts\Support\Htmlable	$label	The label of the option to disable.
Livewire	Livewire\Component	$livewire	The Livewire component instance.
Eloquent model FQN	?string<Illuminate\Database\Eloquent\Model>	$model	The Eloquent model FQN for the current schema.
Operation	string	$operation	The current operation being performed by the schema. Usually create, edit, or view.
Raw state	mixed	$rawState	The current value of the field, before state casts were applied. Validation is not run.
Eloquent record	?Illuminate\Database\Eloquent\Model	$record	The Eloquent record for the current schema.
State	mixed	$state	The current value of the field. Validation is not run.
Option value	mixed	$value	The value of the option to disable.

如果你想检索未被禁用的选项，比如，用于验证数据，你可以使用 getEnabledOptions()：

use Filament\Forms\Components\Radio;

Radio::make('status')
    ->options([
        'draft' => 'Draft',
        'scheduled' => 'Scheduled',
        'published' => 'Published',
    ])
    ->disableOptionWhen(fn (string $value): bool => $value === 'published')
    ->in(fn (Radio $component): array => array_keys($component->getEnabledOptions()))

关于 in() 函数的更多信息，请查阅验证文档。

#布尔值选项

你可以使用 boolean() 方法，来表示简单的布尔值，如”是”和”否”选项：

use Filament\Forms\Components\Radio;

Radio::make('feedback')
    ->label('Like this post?')
    ->boolean()

要自定义“是”标签，你可以在 boolean() 方法中使用 trueLabel 参数：

use Filament\Forms\Components\Radio;

Radio::make('feedback')
    ->label('Like this post?')
    ->boolean(trueLabel: 'Absolutely!')

要自定义“否”标签，你可以在 boolean() 方法中使用 falseLabel 参数：

use Filament\Forms\Components\Radio;

Radio::make('feedback')
    ->label('Like this post?')
    ->boolean(falseLabel: 'Not at all!')

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