The method \Drupal\state_machine\Plugin\Field\FieldType\StateItem::dispatchTransitionEvent() uses $workflow = $this->getWorkflow() and right after uses $workflow->findTransition().
The problem is that the method getWorkflow() can return false. In that case, we'll get a the error mentioned in the title.
I can reproduce it in a very specific way that is not really interesting.
Just by looking to the code we can already see the problem.
Check if $workflow an instance of WorkflowInterface before using it in $workflow->findTransition().
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Comments
Comment #2
dxvargas commentedComment #3
sourabhsisodia_ commentedComment #6
sourabhsisodia_ commented@niharika.s the if conditions are not correct
Comment #7
sourabhsisodia_ commentedComment #8
divyansh.gupta commentedThe fix addresses the issue where $workflow could be false, leading to an error when calling $workflow->findTransition(). By ensuring $workflow is an instance of WorkflowInterface before using it, the code now handles cases where the workflow is invalid. This solution should resolve the issue.Thus Moving this to RTBC.
Comment #11
jsacksick commented