README

A tiny trait that gives your Eloquent models clean, automatic slugs — without setup, ceremony, or extra weight.

Attach it to a model, define the source attribute, and the trait quietly handles generation, updates and uniqueness.

🚀 Installation

Install the package via Composer:

composer require oliwol/laravel-slugify

⚡️ Quick Start

use Oliwol\Slugify\HasSlug;

class Post extends Model
{
    use HasSlug;

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

🛠️ Usage

Add the HasSlug trait to any Eloquent model where a slug should be automatically generated.

You must implement:

• getAttributeToCreateSlugFrom() — the attribute used to generate the slug (e.g. name/title).
• getRouteKeyName() — the slug column for route model binding (e.g. slug).
• Optionally getAttributeToSaveSlugTo() — a different column to save the slug.
• Optionally override scopeSlugQuery() — scoping for uniqueness (e.g. per team).

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Oliwol\Slugify\HasSlug;

class Post extends Model
{
    use HasSlug;

    /**
     * Attribute used for generating the slug.
     */
    public function getAttributeToCreateSlugFrom(): string
    {
        return 'name';
    }

    /**
     * Use slug for route binding.
     */
    public function getRouteKeyName(): string
    {
        return 'slug';
    }

    /**
     * This package uses Laravel's getRouteKeyName to store the slug. 
     * If you are using a different column for your routes, 
     * use getAttributeToSaveSlugTo to store the slug.
     */
    public function getAttributeToSaveSlugTo(): string
    {
        return 'slug';
    }

    /**
     * Scope applied when checking for uniqueness.
     */
    public function scopeSlugQuery(): Builder
    {
        return fn (Builder $query): Builder => $query->where('tenant_id', 1);
    }
}

Make sure your table contains the slug column:

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

If you use scoping, you probably don’t want a global unique index. Example: slugs must be unique per tenant:

$table->unique(['tenant_id', 'slug']);

⚙️ How it works

The HasSlug trait hooks into the Eloquent saving event:

protected static function bootHasSlug(): void
 {
     static::saving(function (Model $model): void {
         if ($model->isSluggable()) {
             $model->createSlug();
         }
     });
 }

When triggered, it will:

1. Generate a slug from the attribute defined by getAttributeToCreateSlugFrom().
2. Skip regeneration if:
   1. The source attribute is not dirty (unchanged), or
   2. The slug has been manually set and differs from the original.
3. Ensure uniqueness by incrementing existing slugs (my-post, my-post-2, my-post-3, …).

✅ Best practices & caveats

• Ensure the route key column (getRouteKeyName()) is present in your table and is not the primary key (unless intentionally designed).
• If you manually set a slug, the trait will not override it. Use this to allow user-edited slugs.

🔍 Custom Scoping Example

To ensure slugs are unique per tenant, override the scopeSlugQuery() method:

public function scopeSlugQuery(): Builder
{
    return fn (Builder $query): Builder => $query->where('tenant_id', 1);
}

This will append a WHERE tenant_id = ? clause when checking for existing slugs.

📄 License

This package is open-sourced software licensed under the MIT license.