Filament•2mo ago

Wizard issue with missing $statePath

I have a livewire component wizard that seems to be hitting intermittent issues for a very few users, I'm unable to recreate the issue. We're running the site on a load balancer, so it might just be a server or two playing up. I'm saving the form data to individual properties, rather than using $statePath, but occasionally the wizard seems to crash when moving to the next step production.ERROR: Filament\Forms\Components\Wizard::Filament\Forms\Components{closure}(): Argument #2 ($statePath) must be of type string, null given, Which seems to be related to:

$this->registerListeners([
            'wizard::nextStep' => [
                function (Wizard $component, string $statePath, int $currentStepIndex): void {

$this->registerListeners([
            'wizard::nextStep' => [
                function (Wizard $component, string $statePath, int $currentStepIndex): void {

from Wizard.php Any idea why it works 99% of the time, but occasionally falls over? We're on php 8.2 Thanks!

2 Replies

LeandroFerreira•2mo ago

You could try to create a custom component extending the Wizard and change it to null|string $statePath If it works, probably this is a bug

tomb8091•2mo ago

Ah! good idea, I'll try that - weird that it's so difficult to recreate the bug

 $this->registerListeners([
            'wizard::nextStep' => [
                function (Wizard $component, null|string $statePath, int $currentStepIndex): void {

                    //Tom added this return, temporary fix
                    return;

                
                    if ($statePath !== $component->getStatePath()) {
                        return;
                    }

 if (! $component->isSkippable()) {
                        /** @var Step $currentStep */
                        $currentStep = array_values(
                            $component
                                ->getChildComponentContainer()
                                ->getComponents()
                        )[$currentStepIndex];

                        try {
                            $currentStep->callBeforeValidation();
                            $currentStep->getChildComponentContainer()->validate();
                            $currentStep->callAfterValidation();
                        } catch (Halt $exception) {
                            return;
                        }
                    }

                    /** @var LivewireComponent $livewire */
                    $livewire = $component->getLivewire();
                    $livewire->dispatch('next-wizard-step', statePath: $statePath);

 $this->registerListeners([
            'wizard::nextStep' => [
                function (Wizard $component, null|string $statePath, int $currentStepIndex): void {

                    //Tom added this return, temporary fix
                    return;

                
                    if ($statePath !== $component->getStatePath()) {
                        return;
                    }

 if (! $component->isSkippable()) {
                        /** @var Step $currentStep */
                        $currentStep = array_values(
                            $component
                                ->getChildComponentContainer()
                                ->getComponents()
                        )[$currentStepIndex];

                        try {
                            $currentStep->callBeforeValidation();
                            $currentStep->getChildComponentContainer()->validate();
                            $currentStep->callAfterValidation();
                        } catch (Halt $exception) {
                            return;
                        }
                    }

                    /** @var LivewireComponent $livewire */
                    $livewire = $component->getLivewire();
                    $livewire->dispatch('next-wizard-step', statePath: $statePath);

I think there must be some kind of bug, by type hinting null, the function seems to return false for if ($statePath !== $component->getStatePath()) { return; } Then it runs the rest of the logic and all my conditionally hidden fields aren't showing until the final step. If I simply return at the top, the wizard works perfectly, at least it appears to. Is this safe to do?

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Wizard issue with missing $statePath