ldc-legaulois/app/Models/SubRange.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;

class SubRange extends Model
{
    use HasFactory;

    /**
     * The model's attributes.
     *
     * @var array
     */
    protected $attributes = [
        'back_link_url' => '',
        'back_link_text' => ''
    ];

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'name', 'picture_alt',
        'back_link_url', 'back_link_text',
        'back_link_display', 'title',
        'subtitle', 'content'
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        static::creating(function (SubRange $subRange) {
            $subRange->content = clean($subRange->content);
            $subRange->slug    = Str::slug($subRange->name);
        });
        static::updating(function (SubRange $subRange) {
            $subRange->content = clean($subRange->content);
            $subRange->slug    = Str::slug($subRange->name);
        });
    }

    /**
     * BelongsToMany ranges relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function ranges()
    {
        return $this->belongsToMany(Range::class, 'range_sub_range');
    }
}