[Workflow] Made code simpler
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@ -87,7 +87,8 @@ class StateMachineTest extends TestCase
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// that are not enabled by the marking are evaluated.
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// see https://github.com/symfony/symfony/issues/28432
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// Test if when you are in place "a" applying transition "t1" then returned blocker list contains guard blocker instead blockedByMarking
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// Test if when you are in place "a"trying transition "t1" then returned
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// blocker list contains guard blocker instead blockedByMarking
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$subject->marking = 'a';
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$transitionBlockerList = $net->buildTransitionBlockerList($subject, 't1');
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$this->assertCount(1, $transitionBlockerList);
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@ -96,7 +97,8 @@ class StateMachineTest extends TestCase
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$this->assertSame('Transition blocker of place a', $blockers[0]->getMessage());
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$this->assertSame('blocker', $blockers[0]->getCode());
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// Test if when you are in place "d" applying transition "t1" then returned blocker list contains guard blocker instead blockedByMarking
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// Test if when you are in place "d" trying transition "t1" then
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// returned blocker list contains guard blocker instead blockedByMarking
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$subject->marking = 'd';
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$transitionBlockerList = $net->buildTransitionBlockerList($subject, 't1');
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$this->assertCount(1, $transitionBlockerList);
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@ -37,6 +37,17 @@ final class TransitionBlockerList implements \IteratorAggregate, \Countable
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$this->blockers[] = $blocker;
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}
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public function has(string $code): bool
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{
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foreach ($this->blockers as $blocker) {
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if ($code === $blocker->getCode()) {
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return true;
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}
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}
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return false;
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}
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public function clear(): void
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{
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$this->blockers = array();
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@ -92,11 +92,7 @@ class Workflow implements WorkflowInterface
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continue;
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}
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try {
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$transitionBlockerList = $this->buildTransitionBlockerListForTransition($subject, $marking, $transition);
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} catch (NotEnabledTransitionException $e) {
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$transitionBlockerList = $e->getTransitionBlockerList();
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}
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if ($transitionBlockerList->isEmpty()) {
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return true;
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@ -120,13 +116,18 @@ class Workflow implements WorkflowInterface
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continue;
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}
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try {
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$transitionBlockerList = $this->buildTransitionBlockerListForTransition($subject, $marking, $transition);
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if ($transitionBlockerList->isEmpty()) {
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return $transitionBlockerList;
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}
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// We prefer to return transitions blocker by something else than
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// marking. Because it means the marking was OK. Transitions are
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// deterministic: it's not possible to have many transitions enabled
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// at the same time that match the same marking with the same name
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if (!$transitionBlockerList->has(TransitionBlocker::BLOCKED_BY_MARKING)) {
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return $transitionBlockerList;
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} catch (NotEnabledTransitionException $e) {
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// a transition with the same name is defined for other places too
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$transitionBlockerList = $e->getTransitionBlockerList();
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}
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}
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@ -153,16 +154,12 @@ class Workflow implements WorkflowInterface
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continue;
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}
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try {
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$transitionBlockerList = $this->buildTransitionBlockerListForTransition($subject, $marking, $transition);
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} catch (NotEnabledTransitionException $e) {
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$transitionBlockerList = $e->getTransitionBlockerList();
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if (!$transitionBlockerList->isEmpty()) {
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continue;
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}
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if ($transitionBlockerList->isEmpty()) {
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$approvedTransitionQueue[] = $transition;
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}
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}
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foreach ($approvedTransitionQueue as $transition) {
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$applied = true;
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@ -202,12 +199,7 @@ class Workflow implements WorkflowInterface
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$marking = $this->getMarking($subject);
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foreach ($this->definition->getTransitions() as $transition) {
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try {
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$transitionBlockerList = $this->buildTransitionBlockerListForTransition($subject, $marking, $transition);
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} catch (NotEnabledTransitionException $e) {
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$transitionBlockerList = $e->getTransitionBlockerList();
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}
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if ($transitionBlockerList->isEmpty()) {
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$enabledTransitions[] = $transition;
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}
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@ -252,7 +244,9 @@ class Workflow implements WorkflowInterface
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{
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foreach ($transition->getFroms() as $place) {
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if (!$marking->has($place)) {
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throw new NotEnabledTransitionException($subject, $transition->getName(), $this, new TransitionBlockerList(array(TransitionBlocker::createBlockedByMarking($marking))));
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return new TransitionBlockerList(array(
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TransitionBlocker::createBlockedByMarking($marking),
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));
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}
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}
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