Create arrays of options from different sources

#Create lists of options from different sources

A typical web application always has many select fields with options. This package makes it simple to transform enums, models, states and arrays to a unified option structure.

Let's say you have the following enum:

enum Hobbit: string
{
    case Frodo = 'frodo';
    case Sam = 'sam';
    case Merry = 'merry';
    case Pippin = 'pippin';
}

You can convert this to options like this:

Options::forEnum(Hobbit::class)->toArray();

Which will return the following array:

[
    ['label' => 'Frodo', 'value' => 'frodo'],
    ['label' => 'Sam', 'value' => 'sam'],
    ['label' => 'Merry', 'value' => 'merry'],
    ['label' => 'Pippin', 'value' => 'pippin'],
]

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#Installation

You can install the package via composer:

composer require spatie/laravel-options

You can publish the config file with:

php artisan vendor:publish --tag="options-config"

This is the contents of the published config file:

return [
    /*
     * The key used in an option to describe the label of the option
     */
    'label_key' => 'label',
 
    /*
     * The key used in an option to describe the value of the option
     */
    'value_key' => 'value',
];

#Usage

You can create an Options object like this (we'll cover other things then enums later on):

Options::forEnum(Hobbit::class);

You can get an array representation of the options like this:

Options::forEnum(Hobbit::class)->toArray();

Or a JSON version like this:

Options::forEnum(Hobbit::class)->toJson();

You can return options as part of a response in your controller, and they will be automatically converted into JSON:

class ShowHobbitsController{
    public function __invoke(RingBearer $ringBearer){
        return [
            'ring_bearer' => $ringBearer,
            'hobbit_options' => Options::forEnum(Hobbit::class)
        ]
    }
}

#Manipulating options

You can sort options by their label like this:

Options::forEnum(Hobbit::class)->sort();

Or use a closure to sort the options:

Options::forEnum(Hobbit::class)->sort(fn(Hobbit $hobbit) => $hobbit->value);

You can append additional data to the options like this:

Options::forEnum(Hobbit::class)->append(fn(Hobbit $hobbit) => [
    'ring_bearer' => $hobbit === Hobbit::Frodo || $hobbit === Hobbit::Sam
]);

This will result in the following options array:

[
    ['label' => 'Frodo', 'value' => 'frodo', 'ring_bearer' => true],
    ['label' => 'Sam', 'value' => 'sam', 'ring_bearer' => true],
    ['label' => 'Merry', 'value' => 'merry', 'ring_bearer' => false],
    ['label' => 'Pippin', 'value' => 'pippin', 'ring_bearer' => false],
]

You can filter the options that will be included:

Options::forEnum(Hobbit::class)->filter(fn(Hobbit $hobbit) => $hobbit === Hobbit::Frodo);

Which will create a smaller options array:

[
    ['label' => 'Frodo', 'value' => 'frodo'],
]

Or reject specific options to be included:

Options::forEnum(Hobbit::class)->reject(fn(Hobbit $hobbit) => $hobbit === Hobbit::Frodo);

Which will create this options array:

[
    ['label' => 'Sam', 'value' => 'sam'],
    ['label' => 'Merry', 'value' => 'merry'],
    ['label' => 'Pippin', 'value' => 'pippin'],
]

A unique null option can be added as such:

Options::forEnum(Hobbit::class)->nullable();

This will add an option with the value null:

[
    ['label' => '-', 'value' => null],
    ['label' => 'Frodo', 'value' => 'frodo'],
    ['label' => 'Sam', 'value' => 'sam'],
    ['label' => 'Merry', 'value' => 'merry'],
    ['label' => 'Pippin', 'value' => 'pippin'],
]

The label of the null option can be changed as such:

Options::forEnum(Hobbit::class)->nullable('Gandalf');

Another value for null can be set as follows:

Options::forEnum(Hobbit::class)->nullable(label: 'Gandalf', value: 'You Shall Not Pass');

It is possible to change the keys used in options by changing the options.php config file. For example:

return [
    /*
     * The key used in an option to describe the label of the option
     */
    'label_key' => 'name',
 
    /*
     * The key used in an option to describe the value of the option
     */
    'value_key' => 'id',
];

Will result in the following options:

[
    ['name' => 'Frodo', 'id' => 'frodo'],
    ['name' => 'Sam', 'id' => 'sam'],
    ['name' => 'Merry', 'id' => 'merry'],
    ['name' => 'Pippin', 'id' => 'pippin'],
]

#With enums

You can create options for native PHP enums, Spatie Enums and MyClabs Enums like this:

Options::forEnum(Hobbit::class);

By default, the package will look for a static method called labels with the labels for the enum returned as an array:

enum Hobbit: string
{
    case Frodo = 'frodo';
    case Sam = 'sam';
    case Merry = 'merry';
    case Pippin = 'pippin';
 
    public static function labels(): array
    {
       return [
           'frodo' => 'Frodo Baggins',
           'sam' => 'Sam Gamgee',
           'merry' => 'Merry Brandybuck',
           'pippin' => 'Pippin Took',
       ];
    }
}

Now the options array will look like this:

[
    ['label' => 'Frodo Baggins', 'value' => 'frodo'],
    ['label' => 'Sam Gamgee', 'value' => 'sam'],
    ['label' => 'Merry Brandybuck', 'value' => 'merry'],
    ['label' => 'Pippin Took', 'value' => 'pippin'],
]

You can use another method name for the labels as such:

Options::forEnum(Hobbit::class, 'hobbitLabels');

Or use a closure to resolve the label for the enum:

Options::forEnum(Hobbit::class, fn(Hobbit $hobbit) => $hobbit->name. ' from the shire'));

#With models

You can create options for Laravel models like this:

Options::forModels(Wizard::class);

Use a single model like this:

Options::forModels(Wizard::first());

Or for a collection of models:

Options::forModels(Wizard::all());

You can also pass a Builder instance:

Options::forModels(Wizard::query()->where('name', 'gandalf'));

By default, the model's key (usually id) will be taken as a value and the name field as the label.

You can change the value field like this:

Options::forModels(Wizard::class, value: 'uuid');

Or use a closure for determining the value:

Options::forModels(Wizard::class, value: fn(Wizard $wizard) => $wizard->uuid());

You can change the label field as such:

Options::forModels(Wizard::class, label: 'full_name');

Or you can use a closure to resolve the label:

Options::forModels(Wizard::class, label: fn(Wizard $wizard) => $wizard->getName());

#With Select Options

If you're using options for a model in a lot of places, then each time, manually defining the label and/or value fields can become quite tedious:

Options::forModels(
    Wizard::class,
    label: fn(Wizard $wizard) => $wizard->getUuid(),
    value: fn(Wizard $wizard) => $wizard->getName(),
); // A lot of times within your code base

You can implement Selectable on a model (or any PHP class), which will automatically convert a model into an option with the correct fields:

class Wizard extends Model implements Selectable
{
    public function toSelectOption(): SelectOption
    {
        return new SelectOption(
            $this->getName(),
            $this->getUuid()
        )
    }
}

Now you can omit the label and value field definitions:

Options::forModels(Wizard::class);

You can also pass some extra data with the SelectOption like the append method we saw earlier:

public function toSelectOption(): SelectOption
{
    return new SelectOption(
        $this->getName(),
        $this->getUuid(),
        ['color' => $this->color]
    )
}

Now the options array will look like this:

[
    ['label' => 'Gandalf', 'id' => '...', 'color' => 'gray'],
    ['label' => 'Saruman', 'id' => '...', 'color' => 'white'],
]

As said earlier, implementing Selectable is not limited to models. You can implement it on any PHP class. In such a case, you can create options like this:

Options::forSelectableOptions([
    SelectableOption::find(1),
    SelectableOption::find(2),
    SelectableOption::find(3),
]);

#With states

It is possible to create options from the Spatie model states package like this:

Options::forStates(RingState::class);

You can pass in a model like this (otherwise, a temporary model is created):

Options::forStates(RingState::class, $ring);

The package will automatically look for a label public method to use as a label:

class LostRingState extends RingsState
{
    public function label(): string
    {
        return 'Lost';
    }
}

Or a label public property:

class DestroyedRingState extends RingsState
{
    public string $label = 'destroyed';
}

You can change the name of the method or property which will be used as a label as such:

Options::forStates(RingState::class, label: 'ringLabel');

Or use a closure to resolve the label for the state:

Options::forStates(RingState::class, label: fn(RingState $state) => $state->label());

#With Arrays

You can create a set of options from an associative array:

Options::forArray([
    'gondor' => 'Gondor',
    'rohan' => 'Rohan',
    'mordor' => 'Mordor',
])

You can also use a plain array as such:

Options::forArray([
    'Gondor',
    'Rohan',
    'Mordor',
],useLabelsAsValue: true)

In this case, the labels and values will be equal.

#Without anything

Lastly, you can create an empty options list like this:

Options::empty();

#Using for validation

Options, can be converted to a Laravel validation rule:

$request->validate([
    // ['in:frodo,sam,merry,pippin']
    'hobbit' => Options::forEnum(Hobbit::class)->toValidationRule()
]);

When options are nullable, the validation rule automatically will become nullable:

$request->validate([
    // ['nullable', 'in:frodo,sam,merry,pippin']
    'hobbit' => Options::forEnum(Hobbit::class)->nullable()->toValidationRule()
]);

#Iterating

It is possible to iterator over a set of options:

foreach(Options::forEnum(Hobbit::class) as $option){
    echo "<option value={$option['value']}>{$option['label']}</option>";
}

#Testing

composer test

#Changelog

Please see CHANGELOG for more information on what has changed recently.

#Contributing

Please see CONTRIBUTING for details.

#Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

#Credits

• Ruben Van Assche
• All Contributors

#License

The MIT License (MIT). Please see License File for more information.