Spatie\Sluggable\HasSlug::addSlug PHP Метод

    protected function addSlug()
    {
        $this->guardAgainstInvalidSlugOptions();
        $slug = $this->generateNonUniqueSlug();
        if ($this->slugOptions->generateUniqueSlugs) {
            $slug = $this->makeSlugUnique($slug);
        }
        $slugField = $this->slugOptions->slugField;
        $this->{$slugField} = $slug;
    }