Introduction

Enums are special PHP classes that represent a fixed set of constants. They are useful for modeling concepts that have a limited number of possible values, like days of the week, months in a year, or the suits in a deck of cards.

Since enum "cases" are instances of the enum class, adding interfaces to enums proves to be very useful. Filament provides a collection of interfaces that you can add to enums, which enhance your experience when working with them.

Enum labels

The HasLabel interface transforms an enum instance into a textual label. This is useful for displaying human-readable enum values in your UI.

use Filament\Support\Contracts\HasLabel;

enum Status: string implements HasLabel
{
    case Draft = 'draft';
    case Reviewing = 'reviewing';
    case Published = 'published';
    case Rejected = 'rejected';
    
    public function getLabel(): ?string
    {
        return $this->name;
        
        // or
    
        return match ($this) {
            self::Draft => 'Draft',
            self::Reviewing => 'Reviewing',
            self::Published => 'Published',
            self::Rejected => 'Rejected',
        };
    }
}

Using the enum label with form field options

The HasLabel interface can be used to generate an array of options from an enum, where the enum's value is the key and the enum's label is the value. This applies to form fields like Select and CheckboxList, as well as the Table Builder's SelectColumn and SelectFilter:

use Filament\Forms\Components\CheckboxList;
use Filament\Forms\Components\Radio;
use Filament\Forms\Components\Select;
use Filament\Tables\Columns\SelectColumn;
use Filament\Tables\Filters\SelectFilter;

Select::make('status')
    ->options(Status::class)

CheckboxList::make('status')
    ->options(Status::class)

Radio::make('status')
    ->options(Status::class)

SelectColumn::make('status')
    ->options(Status::class)

SelectFilter::make('status')
    ->options(Status::class)

In these examples, Status::class is the enum class which implements HasLabel, and the options are generated from that:

[
    'draft' => 'Draft',
    'reviewing' => 'Reviewing',
    'published' => 'Published',
    'rejected' => 'Rejected',
]

Using the enum label with a text column in your table

If you use a TextColumn with the Table Builder, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasLabel interface to display the enum's label instead of its raw value.

Using the enum label as a group title in your table

If you use a grouping with the Table Builder, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasLabel interface to display the enum's label instead of its raw value. The label will be displayed as the title of each group.

Using the enum label with a text entry in your infolist

If you use a TextEntry in an infolist, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasLabel interface to display the enum's label instead of its raw value.

Enum colors

The HasColor interface transforms an enum instance into a color. This is useful for displaying colored enum values in your UI.

use Filament\Support\Contracts\HasColor;

enum Status: string implements HasColor
{
    case Draft = 'draft';
    case Reviewing = 'reviewing';
    case Published = 'published';
    case Rejected = 'rejected';
    
    public function getColor(): string | array | null
    {
        return match ($this) {
            self::Draft => 'gray',
            self::Reviewing => 'warning',
            self::Published => 'success',
            self::Rejected => 'danger',
        };
    }
}

Using the enum color with a text column in your table

If you use a TextColumn with the Table Builder, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasColor interface to display the enum label in its color. This works best if you use the badge() method on the column.

Using the enum color with a text entry in your infolist

If you use a TextEntry in an infolist, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasColor interface to display the enum label in its color. This works best if you use the badge() method on the entry.

Using the enum color with a toggle buttons field in your form

If you use a ToggleButtons form field, and it is set to use an enum for its options, Filament will automatically use the HasColor interface to display the enum label in its color.

Enum icons

The HasIcon interface transforms an enum instance into an icon. This is useful for displaying icons alongside enum values in your UI.

use Filament\Support\Contracts\HasIcon;

enum Status: string implements HasIcon
{
    case Draft = 'draft';
    case Reviewing = 'reviewing';
    case Published = 'published';
    case Rejected = 'rejected';
    
    public function getIcon(): ?string
    {
        return match ($this) {
            self::Draft => 'heroicon-m-pencil',
            self::Reviewing => 'heroicon-m-eye',
            self::Published => 'heroicon-m-check',
            self::Rejected => 'heroicon-m-x-mark',
        };
    }
}

Using the enum icon with a text column in your table

If you use a TextColumn with the Table Builder, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasIcon interface to display the enum's icon aside its label. This works best if you use the badge() method on the column.

Using the enum icon with a text entry in your infolist

If you use a TextEntry in an infolist, and it is cast to an enum in your Eloquent model, Filament will automatically use the HasIcon interface to display the enum's icon aside its label. This works best if you use the badge() method on the entry.

Using the enum icon with a toggle buttons field in your form

If you use a ToggleButtons form field, and it is set to use an enum for its options, Filament will automatically use the HasIcon interface to display the enum's icon aside its label.

Enum descriptions

The HasDescription interface transforms an enum instance into a textual description, often displayed under its label. This is useful for displaying human-friendly descriptions in your UI.

use Filament\Support\Contracts\HasDescription;
use Filament\Support\Contracts\HasLabel;

enum Status: string implements HasLabel, HasDescription
{
    case Draft = 'draft';
    case Reviewing = 'reviewing';
    case Published = 'published';
    case Rejected = 'rejected';
    
    public function getLabel(): ?string
    {
        return $this->name;
    }
    
    public function getDescription(): ?string
    {
        return match ($this) {
            self::Draft => 'This has not finished being written yet.',
            self::Reviewing => 'This is ready for a staff member to read.',
            self::Published => 'This has been approved by a staff member and is public on the website.',
            self::Rejected => 'A staff member has decided this is not appropriate for the website.',
        };
    }
}

Using the enum description with form field descriptions

The HasDescription interface can be used to generate an array of descriptions from an enum, where the enum's value is the key and the enum's description is the value. This applies to form fields like Radio and CheckboxList:

use Filament\Forms\Components\CheckboxList;
use Filament\Forms\Components\Radio;

Radio::make('status')
    ->options(Status::class)

CheckboxList::make('status')
    ->options(Status::class)