Cache count clarification

[cviebrock]

I have a Category model that has many Services. My categories table has columns for _categoryid (the primary key) and _servicescount, among other fields. The services table has _serviceid (primary key) and _categoryid, among others.

My Service model looks something like:

class Service extends Model implements CountCache
{
    use CamelCaseModel;

    protected $primaryKey = 'service_id';

    ...

    public function countCaches()
    {
        return [
            'services_count' => [Category::class, 'category_id', 'category_id'],
        ];
    }
}

Finally, in App/Providers/AppServiceProvider.php, I have in my register() method:

class AppServiceProvider extends ServiceProvider
{

    ...

    public function register()
    {
        Service::observe(new CountCacheObserver());
    }
}

When I create a new Service model, or edit an existing on, the _servicescount field on the corresponding Category model isn't increasing. Where did I goof?

[cviebrock]

Figured it out ... the line Service::observe(new CountCacheObserver()); needs to go in the boot() method of the AppServiceProvider, not the register() method.

I'll send a PR to update the docs to clarify that, if you don't mind.