Hmm, yeah, I see the problem. We can't just do a simple attribute merge in BatchActionController::__invoke() - this breaks the request.

Indeed, that seems risky business. The best thing imo is to apply the defaults to the dispatched subrequests but I'm not sure how to get the defaults at runtime since the routes are compiled/cached.

Yeah, the defaults are there in the sub-request but so are a lot of other attributes (added by the subscriber). When merging, we do get the defaults but a bunch of others that break the request.

Thank you for this issue.
There has not been a lot of activity here for a while. Has this been resolved?

Could I get a reply or should I close this?

Hey,

I didn't hear anything so I'm going to close it. Feel free to comment if this is still relevant, I can always reopen!

Thank you for this issue.
There has not been a lot of activity here for a while. Has this been resolved?

Friendly reminder that this issue exists. If I don't hear anything I'll close this.

Hey,

I didn't hear anything so I'm going to close it. Feel free to comment if this is still relevant, I can always reopen!

I have a similar problem, in my case the _route param get overwritten in the ->duplicate function call:

https://github.com/symfony/ux-live-component/blob/1e6d04c89c00d9b6d30ea0d9636eb68f5015d02d/src/Controller/BatchActionController.php#L25

public function __invoke(Request $request, MountedComponent $_mounted_component, string $serviceId, array $actions): ?Response
    {
        foreach ($actions as $action) {
            $name = $action['name'] ?? throw new BadRequestHttpException('Invalid JSON');

            $subRequest = $request->duplicate(attributes: [
                '_controller' => [$serviceId, $name],
                '_component_action_args' => $action['args'] ?? [],
                '_mounted_component' => $_mounted_component,
                '_live_component' => $serviceId,
            ]);

            $response = $this->kernel->handle($subRequest, HttpKernelInterface::SUB_REQUEST, false);

            if ($response->isRedirection()) {
                return $response;
            }
        }

        return null;
    }

what i did is i added this to the subRequest Attributes: the original _route param which should be ux_live_component -> '_route' => $request->attributes->get('_route'),.

I can provide a PR if nobody sees a problem 😄

@arrabiata-asanz sure, I've lost the context a bit here but a PR would be great!