Automatic Column Value When Creating Records

If you want to generate some DB column value when creating record, one of the ways is to add it to model's boot() method. For example, if you have a field "position" and want to assign the next available position to the new record (like Country::max('position') + 1), do this:

class Country extends Model {
    protected static function boot()
    {
        parent::boot();
 
        Country::creating(function($model) {
            $model->position = Country::max('position') + 1;
        });
    }
}

Another option is to create an Observer class, with creating() method inside it.