Evaluate an Eel expression.
| public static evaluateEelExpression ( string $expression, Neos\Eel\EelEvaluatorInterface $eelEvaluator, array $contextVariables, array $defaultContextConfiguration = [] ) : mixed | ||
| $expression | string | |
| $eelEvaluator | Neos\Eel\EelEvaluatorInterface | |
| $contextVariables | array | |
| $defaultContextConfiguration | array | |
| Результат | mixed | |
/**
* Render a node label
*
* @param NodeInterface $node
* @param boolean $crop This argument is deprecated as of Neos 1.2 and will be removed. Don't rely on this behavior and crop labels in the view.
* @return string
*/
public function getLabel(NodeInterface $node, $crop = true)
{
$label = Utility::evaluateEelExpression($this->getExpression(), $this->eelEvaluator, array('node' => $node), $this->defaultContextConfiguration);
if ($crop === false) {
return $label;
}
$croppedLabel = Functions::substr($label, 0, 30);
return $croppedLabel . (strlen($croppedLabel) < strlen($label) ? ' …' : '');
}
/**
* Record events for entity changes.
*
* Note: this method is registered as an Doctrine event listener in the settings of this package.
*
* TODO: Update/Delete of Entities
*
* @param OnFlushEventArgs $eventArgs
* @return void
* @throws Exception
*/
public function onFlush(OnFlushEventArgs $eventArgs)
{
if (!$this->eventEmittingService->isEnabled()) {
return;
}
$entityManager = $eventArgs->getEntityManager();
$unitOfWork = $entityManager->getUnitOfWork();
foreach ($unitOfWork->getScheduledEntityInsertions() as $entity) {
$className = get_class($entity);
if (isset($this->monitorEntitiesSetting[$className])) {
$entityMonitoringConfiguration = $this->monitorEntitiesSetting[$className];
if (isset($entityMonitoringConfiguration['events']['created'])) {
$this->initializeAccountIdentifier();
$data = array();
foreach ($entityMonitoringConfiguration['data'] as $key => $eelExpression) {
$data[$key] = Utility::evaluateEelExpression($eelExpression, $this->eelEvaluator, array('entity' => $entity));
}
$event = $this->eventEmittingService->emit($entityMonitoringConfiguration['events']['created'], $data);
$unitOfWork->computeChangeSet($entityManager->getClassMetadata(Event::class), $event);
}
}
}
foreach ($unitOfWork->getScheduledEntityDeletions() as $entity) {
$className = get_class($entity);
if (isset($this->monitorEntitiesSetting[$className])) {
$entityMonitoringConfiguration = $this->monitorEntitiesSetting[$className];
if (isset($entityMonitoringConfiguration['events']['deleted'])) {
$this->initializeAccountIdentifier();
$data = array();
foreach ($entityMonitoringConfiguration['data'] as $key => $eelExpression) {
$data[$key] = Utility::evaluateEelExpression($eelExpression, $this->eelEvaluator, array('entity' => $entity));
}
$event = $this->eventEmittingService->emit($entityMonitoringConfiguration['events']['deleted'], $data);
$unitOfWork->computeChangeSet($entityManager->getClassMetadata(Event::class), $event);
}
}
}
}
/**
* Evaluate an Eel expression
*
* @param string $expression The Eel expression to evaluate
* @param \Neos\Fusion\TypoScriptObjects\AbstractTypoScriptObject $contextObject An optional object for the "this" value inside the context
* @return mixed The result of the evaluated Eel expression
* @throws Exception
*/
protected function evaluateEelExpression($expression, AbstractTypoScriptObject $contextObject = null)
{
if ($expression[0] !== '$' || $expression[1] !== '{') {
// We still assume this is an EEL expression and wrap the markers for backwards compatibility.
$expression = '${' . $expression . '}';
}
$contextVariables = array_merge($this->getDefaultContextVariables(), $this->getCurrentContext());
if (isset($contextVariables['this'])) {
throw new Exception('Context variable "this" not allowed, as it is already reserved for a pointer to the current TypoScript object.', 1344325044);
}
$contextVariables['this'] = $contextObject;
if ($this->eelEvaluator instanceof \Neos\Flow\ObjectManagement\DependencyInjection\DependencyProxy) {
$this->eelEvaluator->_activateDependency();
}
return EelUtility::evaluateEelExpression($expression, $this->eelEvaluator, $contextVariables);
}
