README

A simple trait to generate model slugs.

Installation

You can install the package via composer:

composer require michaeljmeadows/sluggable

Usage

Add a slug field to the migration for the model for which you'd like to generate slugs:

$table->string('slug')->unique();

Once the migration has been updated, you can simply include the trait in your model's definition and define which other fields should be used with a protected array $slugFields:

<?php

namespace App\Models;

use michaeljmeadows\Traits\Sluggable;
use Illuminate\Database\Eloquent\Model;

class NewModel extends Model
{
    use Sluggable;

    protected array $slugFields = [
        'name',
    ];

    public function getRouteKeyName(): string
    {
        return 'slug';
    }	

We recommend not clearing the slug when soft-deleting a model.

Duplicate Slugs

It is possible that a generated slug has already been used in your model table, in which case Sluggable will append a number of increasing value until a unique slug has been found.

e.g. If my-slug is generated but already in the database for a different model, my-slug-1 will be tried. If that is also taken, my-slug-2 is tried, etc.

We recommend that you pick fields that are less likely to result in conflicts.

Soft-Deleting

If you're applying Sluggable to a model that can be soft-deleted, we recommend that slugs not be altered when deleted. Sluggable will handle potential conflicts with those models too.

Customising Behaviour

Slug Field

By default, Sluggable expects the slug field to be named slug, but this can be customised by adding a protected string attribute $slugField:

<?php

namespace App\Models;

use michaeljmeadows\Traits\Sluggable;
use Illuminate\Database\Eloquent\Model;

class NewModel extends Model
{
    use Sluggable;
	
    protected string $slugField = 'url_identifier'; // Instead of 'slug'.

Multiple Slug Fields

You can use as many fields in the $slugFields array as you'd like. These are included in the slug in the order in which they appear in the array:

<?php

namespace App\Models;

use michaeljmeadows\Traits\Sluggable;
use Illuminate\Database\Eloquent\Model;

class NewModel extends Model
{
    use Sluggable;

    protected array $slugFields = [
        'given_name',
        'family_name',
    ];

Invalid Slugs

By default, the only invalid slug in addition to those already in the database table is create. This is to prevent conflicts with resource controllers. If you'd like to customise the list of invalid slugs, you can add a protected array attribute $invalidSlugs to your model:

<?php

namespace App\Models;

use michaeljmeadows\Traits\Sluggable;
use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    use Sluggable;
	
    protected array $invalidSlugs = [
        'admin',  
        'create',  
    ];

We recommend that you always include create as an invalid slug for any model that uses a resource controller.