/**
* Evaluate an Eel expression.
*
* @param string $expression The Eel expression to evaluate
* @param NodeInterface $node
* @param string $propertyName
* @param mixed $value
* @return mixed The result of the evaluated Eel expression
* @throws \TYPO3\Eel\Exception
*/
protected function evaluateEelExpression($expression, NodeInterface $node, $propertyName, $value)
{
if ($this->defaultContextVariables === NULL) {
$this->defaultContextVariables = EelUtility::getDefaultContextVariables($this->settings['defaultContext']);
}
$contextVariables = array_merge($this->defaultContextVariables, array('node' => $node, 'propertyName' => $propertyName, 'value' => $value));
return EelUtility::evaluateEelExpression($expression, $this->eelEvaluator, $contextVariables);
}
/**
* Get variables from configuration that should be set in the context by default.
* For example Eel helpers are made available by this.
*
* @return array Array with default context variable objects.
*/
protected function getDefaultContextVariables()
{
if ($this->defaultContextVariables === null) {
$this->defaultContextVariables = array();
if (isset($this->settings['defaultContext']) && is_array($this->settings['defaultContext'])) {
$this->defaultContextVariables = EelUtility::getDefaultContextVariables($this->settings['defaultContext']);
}
$this->defaultContextVariables['request'] = $this->controllerContext->getRequest();
}
return $this->defaultContextVariables;
}
/**
* @param AbstractNodeData $nodeData
* @param NodeType $nodeType
* @param MetaDataCollection $metaDataCollection
* @throws \TYPO3\Eel\Exception
*/
protected function mapMetaDataToNodeData(AbstractNodeData $nodeData, NodeType $nodeType, MetaDataCollection $metaDataCollection)
{
if ($this->defaultContextVariables === NULL) {
$this->defaultContextVariables = EelUtility::getDefaultContextVariables($this->settings['defaultEelContext']);
}
foreach ($nodeType->getProperties() as $propertyName => $propertyConfiguration) {
$contextVariables = array_merge($this->defaultContextVariables, $metaDataCollection->toArray());
if (isset($propertyConfiguration['mapping'])) {
$nodeData->setProperty($propertyName, EelUtility::evaluateEelExpression($propertyConfiguration['mapping'], $this->eelEvaluator, $contextVariables));
}
}
}
public function initializeObject()
{
if ($this->defaultContextVariables === null) {
$this->defaultContextVariables = EelUtility::getDefaultContextVariables($this->defaultEelContext);
}
}
