Error: Call to a member function isZero() on null

Open on Drupal.org →

Created on 14 July 2025, about 1 month ago

Describe your bug or feature request.

In one of our projects, we get the following error for commerce_payment in the logs:

Error: Call to a member function isZero() on null in Drupal\commerce_payment\Plugin\Commerce\CheckoutPane\PaymentProcess->isVisible() (line 118 of /usr/www/users/x/x/web/modules/contrib/commerce/modules/payment/src/Plugin/Commerce/CheckoutPane/PaymentProcess.php) #0 /usr/www/users/x/x/web/modules/contrib/commerce/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowWithPanesBase..php(113): Drupal\commerce_payment\Plugin\Commerce\CheckoutPane\PaymentProcess->isVisible()
#1 [internal function]: Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\CheckoutFlowWithPanesBase->Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\{closure}()
#2 /usr/www/users/x/x/web/modules/contrib/commerce/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowWithPanesBase.php(111): array_filter()
#3 /usr/www/users/xx/web/modules/contrib/commerce/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowWithPanesBase.php(132): Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\CheckoutFlowWithPanesBase->getVisiblePanes()
#4 /usr/www/users/x/web/modules/contrib/commerce/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php(275): Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\CheckoutFlowWithPanesBase->isStepVisible()
#5 /usr/www/users/x/web/modules/contrib/commerce/modules/checkout/src/Plugin/Block/CheckoutProgressBlock.php(93): Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\CheckoutFlowBase->getVisibleSteps()
#6 /usr/www/users/x/web/core/modules/block/src/BlockViewBuilder.php(171): Drupal\commerce_checkout\Plugin\Block\CheckoutProgressBlock->build()
#7 [internal function]: Drupal\block\BlockViewBuilder::preRender()
#8 /usr/www/users/x/web/core/lib/Drupal/Core/Security/DoTrustedCallbackTrait.php(113): call_user_func_array()
#9 /usr/www/users/x/web/core/lib/Drupal/Core/Render/Renderer.php(870): Drupal\Core\Render\Renderer->doTrustedCallback()
[...]

I am unsure why and how this happens, but there is a clear fix for this as inside the following if case:
$this->order->getBalance()->isZero() "this->order->getBalance()" can be null.

If a bug, provide steps to reproduce it from a clean install.

🐛 Bug report

Status

Active

Version

3.0

Component

Payment

Created by

🇩🇪Germany Grevil

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Merge Requests

!473Error: Call to a member function isZero() on null
Closed
🇩🇪Germany Grevil
updated about 1 month ago

Comments & Activities

Issue created by @Grevil
Merge request !473Issue #3535746: Error: Call to a member function isZero() on null → (Closed) created by Grevil
Comment about 1 month ago →
🇩🇪Germany Grevil
That should be it! Please review!
Pipeline finished with Success
about 1 month ago
Total: 877s
#546724
Comment about 1 month ago →
🇩🇪Germany Grevil
Also, I am quite unsure, how the balance can be NULL at this stage, eventually you prefer to keep the code as is, since it is an unexpected behavior and throwing an error here might be easier to track the issue down.
Comment about 1 month ago →
🇩🇪Germany Grevil
Talked with @jsacksick. Committing this would cause people to be able to place empty orders. Because at this stage, the balance should NOT be NULL and throwing an error would be more sane. I'll see if I can figure out, how this happened in our environment.
Comment about 1 month ago →
System Message
grevil → closed merge request !473
Comment about 1 month ago →
🇩🇪Germany Grevil
Seems like this happens, when we are on the checkout/review page, remove the order items from the cart in an extra tab and then proceed on checkout.

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