E575 minor #23781 [Workflow] do not emit not needed guard events (xabbuh) · symfony/symfony@457d57b · GitHub
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minor #23781 [Workflow] do not emit not needed guard events (xabbuh)
This PR was merged into the 3.4 branch. Discussion ---------- [Workflow] do not emit not needed guard events | Q | A | ------------- | --- | Branch? | 3.4 | Bug fix? | no | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #23677 | License | MIT | Doc PR | Commits ------- 47c68e1 [Workflow] do not emit not needed guard events
2 parents a12ebf7 + 47c68e1 commit 457d57b

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+36
-2
lines changed

2 files changed

+36
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lines changed

‎src/Symfony/Component/Workflow/Tests/WorkflowTest.php‎

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Original file line numberDiff line numberDiff line change
@@ -137,6 +137,31 @@ public function testCanWithGuard()
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$this->assertFalse($workflow->can($subject, 't1'));
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}
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public function testCanDoesNotTriggerGuardEventsForNotEnabledTransitions()
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{
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$definition = $this->createComplexWorkflowDefinition();
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$subject = new \stdClass();
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$subject->marking = null;
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$dispatchedEvents = array();
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$eventDispatcher = new < 10BC0 span class=pl-v>EventDispatcher();
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$workflow = new Workflow($definition, new MultipleStateMarkingStore(), $eventDispatcher, 'workflow_name');
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$workflow->apply($subject, 't1');
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$workflow->apply($subject, 't2');
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$eventDispatcher->addListener('workflow.workflow_name.guard.t3', function () use (&$dispatchedEvents) {
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$dispatchedEvents[] = 'workflow_name.guard.t3';
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});
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$eventDispatcher->addListener('workflow.workflow_name.guard.t4', function () use (&$dispatchedEvents) {
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$dispatchedEvents[] = 'workflow_name.guard.t4';
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});
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$workflow->can($subject, 't3');
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$this->assertSame(array('workflow_name.guard.t3'), $dispatchedEvents);
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}
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/**
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* @expectedException \Symfony\Component\Workflow\Exception\LogicException
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* @expectedExceptionMessage Unable to apply transition "t2" for workflow "unnamed".

‎src/Symfony/Component/Workflow/Workflow.php‎

Lines changed: 11 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -92,10 +92,19 @@ public function getMarking($subject)
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*/
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public function can($subject, $transitionName)
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{
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$transitions = $this->getEnabledTransitions($subject);
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$transitions = $this->definition->getTransitions();
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$marking = $this->getMarking($subject);
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foreach ($transitions as $transition) {
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if ($transitionName === $transition->getName()) {
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foreach ($transition->getFroms() as $place) {
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if (!$marking->has($place)) {
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// do not emit guard events for transitions where the marking does not contain
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// all "from places" (thus the transition couldn't be applied anyway)
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continue 2;
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}
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}
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if ($transitionName === $transition->getName() && $this->doCan($subject, $marking, $transition)) {
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return true;
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}
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}

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