Customize getRouteKeyName() Laravel 5.6 - development

Customize getRouteKeyName() Laravel 5.6

I have a Location model. The problem is that in my country exists locations of all levels with same name. So, I want to separate them by a custom field created from name + - + id.

Is there a way of rewriting something like

public function getRouteKeyName()
{
    return 'name';
}

In something like that :

public function getRouteKeyName()
{
    return 'name' . '-' . 'id';
}

Meaning, I can access the route by /washington-24 , even this column don’t exists?

from Laravel Questions and Answers https://laravelquestions.com/php/customize-getroutekeyname-laravel-5-6/
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