ldc-dam/app/Models/Etiquette.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Etiquette extends Model
{
    /**
     * The primary key associated with the table.
     *
     * @var string
     */
    protected $primaryKey = 'etiquette_id';

    // * RELATIONSHIPS

    /**
     * HasMany media relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function mediaList()
    {
        return $this->hasMany(Media::class);
    }

    // * METHODS

    /**
     * Get no label
     *
     * @return self
     * @throws \RuntimeException If fetching default label no label fails.
     */
    public static function getDefaultEtiquette(): self
    {
        return self::whereEtiquetteId(0)->first() ??
            throw new \RuntimeException('Failed to fetch label no label');
    }
}