Add RoutedBy Eloquent model attribute

[bakerkretzmar]

Adds a RoutedBy attribute to set a custom route key name on a model:

#[RoutedBy('slug')]
class Post extends Model
{
    //
}

Same idea as #49843, #53122, and #54065. This attribute provides a more compact way to set a custom routing key, instead of overriding the getRouteKeyName method.

Fully backwards-compatible and optional, getRouteKeyName continues to work exactly as before and takes precedence over this attribute.

[shaedrich]

@bakerkretzmar Did you consider going with #[UseRouteKey()] instead to not have this confused with Symfony's #[Route] attribute?

[bakerkretzmar]

@shaedrich that name could work too and I'll defer to the Laravel team of course, just tried to make it consistent with the existing CollectedBy and ObservedBy. I doubt there would be confusion with that specific attribute though since it isn't part of Laravel.

[shaedrich]

Yeah well, Symfony is part of Laravel and we had a similar discussion in #54065.

[henzeb]

just out of curiosity, how is RoutedBy going to be confused with Route?

[shaedrich]

@henzeb I had to look up that it returns the routeKey—this isn't explicitly conveyed by the attribute naming

[taylorotwell]

I think we need to have a broader thought process about why and when we use attributes as a framework instead of piece meal adding them in various places.