Metadata for Laravel

This package is designed to manage metadata in Laravel projects.

Install via Composer

composer require jobmetric/laravel-metadata

Documentation

This package offers a robust and flexible metadata system for Laravel Eloquent models, enabling you to attach dynamic key-value data through a morphMany relationship. It supports full control over metadata keys, validation, events, and batch operations.

Migrate database

Before using the package, run:

php artisan migrate

How to use

Attach Trait to Model

Add the HasMeta trait to your model:

use JobMetric\Metadata\HasMeta;

class User extends Model
{
    use HasMeta;
}

Optional: Limit Allowed Metadata Keys

To restrict metadata keys, define a protected array $metadata = [...] in your model:

class User extends Model
{
    use HasMeta;

    protected array $metadata = [
        'first_name',
        'last_name',
        'bio',
        'birthday',
    ];
}

If omitted or set as ['*'], all keys are allowed.

API Usage

Store metadata

$user = User::find(1);
$user->storeMetadata('phone', '1234567890');

Store multiple metadata

$user->storeMetadataBatch([
    'phone' => '1234567890',
    'address' => '123 Main St',
]);

Retrieve a metadata value

$phone = $user->getMetadata('phone');

Retrieve all metadata

$allMetadata = $user->getMetadata();

Check if metadata exists

$hasPhone = $user->hasMetadata('phone');

Delete specific metadata

$user->forgetMetadata('phone');

Delete all metadata

$user->forgetMetadata();

Allow additional metadata keys at runtime

$user->mergeMeta(['nickname', 'website']);

Remove allowed metadata key

$user->removeMetaKey('bio');

Events

This package includes events for metadata operations:

Event	Description
MetadataStoringEvent	Before metadata is stored
MetadataStoredEvent	After metadata is stored
MetadataDeletingEvent	Before metadata is deleted
MetadataDeletedEvent	After metadata is deleted

You may listen to these events to customize your logic.

Advanced Notes

• If you define $metadata in the model, it overrides the default ['*'].
• During model saving, metadata is validated against allowed keys.
• You can interact with the metas() relationship directly for advanced queries.
• All metadata values that are arrays are stored as JSON in the DB.

Contributing

Thank you for considering contributing to Laravel Metadata! See the CONTRIBUTING.md for details.

License

The MIT License (MIT). See the License File for details.