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README.md

Eloquent Hashids for Laravel 5.x

Build Status GitHub

Automatically persist Hashids on your newly created Eloquent models using Ivan Akimov's Hashids library.

This can be useful when you need to generate unique alphanumeric (or any other character) combinations to represent your models.

Installation

Require the package using composer.

composer require matt-daneshvar/eloquent-hashids

Usage

Add a nullable hashid column to your database table in your migrations.

$table->string('hashid')->nullable();

Use the Hashid trait to automatically generate and persist Hashids for your new models. Optionally use HashidRouting to set your model to use the hashid column for Laravel's Route Model Binding.

use Illuminate\Database\Eloquent\Model;
use MattDaneshvar\EloquentHashids\Hashid;
use MattDaneshvar\EloquentHashids\HashidRouting;

class Receipt extends Model
{
    use Hashid, HashidRouting;
}

Customizing Hashid generation

While the package attempts to use sensible defaults to minimize configuration out of the box, you're free to adjust the Hashid generation behaviour using static properties on your model definition.

class Receipt extends Model
{
    use Hashid;
    
    /**
     * The column used to store Hashid.
     *
     * @var array
     */
    protected static $hashidColumn = 'hashid';
    
    /**
     * The minimum length of the generated Hashids.
     *
     * @var array
     */
    protected static $hashidMinLength = 8;
    
    /**
     * The whitelist of characters used inside the generated Hashids.
     *
     * @var array
     */
    protected static $hashidChars = 'abcdefghijklmnopqrstuvwxyz1234567890';
    
    /**
     * The salt for generating Hashids.
     *
     * @var array
     */
    protected static $hashidSalt = 'your unique salt';
    
    /**
     * The attribute encoded to generate the Hashid.
     *
     * @var array
     */
    protected static $hashidKey = 'id';
}

Changing the Hashid column

To customize the hashid column, set your own custom $hashidColumn value on your model.

class Receipt extends Model
{
    use Hashid;
    
    protected static $hashidColumn = 'uid';
}

Changing the salt

Each model's table name is by default used as the salt for generating Hashids. With that, models of separate classes that share the same IDs (e.g. a Task model with ID of 1 and a Receipt model also with ID of 1) would each have different Hashids. You may change this behaviour and override the salt by specifying the $hashidSlat on your model.

class Receipt extends Model
{
    use Hashid;
    
    protected static $hashidSalt = 'salt and pepper';
}

Creating your own Hashids instance

To fully customize the behaviour of the underlying Hashids library, you may also define your own Hashids instance in your model's boot method. Note that your Hashids instance would take precedence over all other customizations, and therefore all the rest of the static Hashid properties on your model (i.e. $hashidMinLength, $hashidChars, etc.) would be ignored once you specify your own Hashids instance.

class Receipt extends Model
{
    public static function boot()
    {
        parent::boot();
    
        static::$hashidsInstance = new Hashids('salt and pepper', 5);
    }
}

Using the HashidRouting trait

A common use case of Hashids with Eloquent models is to use short URLs using the generated Hashids as identifiers.

For example you may wish to represent your app's receipts using their Hashid values:

https://example.com/receipts/2ov7j3o3

instead of their IDs:

https://example.com/receipts/4

For more convenience this package comes with a HashidRouting trait out of the box; once added to your model, this trait will change the model's route key name to its corresponding Hashid column, which would allow you to take advantage of Laravel's Route Model Binding and use the Hashid URLs:

Route::get('api/receipts/{receipt}', function (App\Receipt $receipt) {
    return $receipt->total;
});

License

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

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Automatically generate and persist Hashids for newly created Eloquent models.

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