If this method is used to resume a subworkflow you must provide
the execution id through $id.
If $interactive is false an ezcWorkflowExecutionNonInteractive
will be returned.
This method can be used by nodes implementing sub-workflows
to get a new execution environment for the subworkflow.
| public getSubExecution ( integer $id = null, boolean $interactive = true ) : ezcWorkflowExecution | ||
| $id | integer | |
| $interactive | boolean | |
| return | ezcWorkflowExecution | |
/**
* Executes this node.
*
* @param ezcWorkflowExecution $execution
* @return boolean true when the node finished execution,
* and false otherwise
* @ignore
*/
public function execute(ezcWorkflowExecution $execution)
{
if ($execution->definitionStorage === null) {
throw new ezcWorkflowExecutionException('No ezcWorkflowDefinitionStorage implementation available.');
}
$workflow = $execution->definitionStorage->loadByName($this->configuration['workflow']);
// Sub Workflow is not interactive.
if (!$workflow->isInteractive() && !$workflow->hasSubWorkflows()) {
$subExecution = $execution->getSubExecution(null, false);
$subExecution->workflow = $workflow;
$this->passVariables($execution, $subExecution, $this->configuration['variables']['in']);
$subExecution->start();
} else {
// Sub Workflow is to be started.
if ($this->state == 0) {
$subExecution = $execution->getSubExecution();
$subExecution->workflow = $workflow;
$this->passVariables($execution, $subExecution, $this->configuration['variables']['in']);
$subExecution->start($execution->getId());
$this->state = $subExecution->getId();
} else {
$subExecution = $execution->getSubExecution($this->state);
$subExecution->workflow = $workflow;
$subExecution->resume($execution->getVariables());
}
}
// Execution of Sub Workflow was cancelled.
if ($subExecution->isCancelled()) {
$execution->cancel($this);
}
// Execution of Sub Workflow has ended.
if ($subExecution->hasEnded()) {
$this->passVariables($subExecution, $execution, $this->configuration['variables']['out']);
$this->activateNode($execution, $this->outNodes[0]);
$this->state = 0;
return parent::execute($execution);
}
// Execution of Sub Workflow has been suspended.
foreach ($subExecution->getWaitingFor() as $variableName => $data) {
$execution->addWaitingFor($this, $variableName, $data['condition']);
}
return false;
}