Impossible to get the current parameter name in resolveRouteBinding

[Tofandel]

Context:

I have models with slugs, those slugs have a history so we know all of the old slugs that were used, the only valid url is the current active slug though

So I was trying to build a redirector to detect when an old model slug is being used. So I hooked into the resolveRouteBinding of the model, but the problem is the parameter name is not being passed to that function. I thought it would be passed in the field parameter, but it's not

    public function resolveRouteBinding($value, $field = null): ?\Illuminate\Database\Eloquent\Model
    {
        $res = parent::resolveRouteBinding($value, $field);
        if (!$res && isset($field)) {
            $redirect = $this->forSlug($value, true)->first();
            if ($redirect) {
                /** @var Model|self $redirect */
                Four0FourRedirector::addRedirector($field, $redirect->slug);
            }
        }
        return $res;
    }
    
    public function resolveRouteBindingQuery($query, $value, $field = null)
    {
        return $query->forSlug($value);
    }

So right now the workaround seems to be to do a lookup on the old $value instead of using $field like

    public function resolveRouteBinding($value, $field = null): ?\Illuminate\Database\Eloquent\Model
    {
        $res = parent::resolveRouteBinding($value, $field);
        if (!$res) {
            $redirect = $this->forSlug($value, true)->first();
            if ($redirect) {
                /** @var Model|self $redirect */
                Four0FourRedirector::addRedirector(Four0FourRedirector::guessParameterName($value), $redirect->slug);
            }
        }
        return $res;
    }
    
    public static function guessParameterName(string $old_value): ?string {
        $route = app('request')->route();
        if (!$route) return null;

        foreach ($route->parameters() as $parameter => $value) {
            if ($value === $old_value) {
                return $parameter;
            }
        }

        return null;
    }

But this is a bit of a hack and if there were multiple parameters with the same value it could be unreliable

I think passing the parameter name that it's trying to resolve to resolveRouteBinding can be a worthy addition