/**
* {@inheritdoc}
*/
protected function getEditedExpression(RulesComponent $component)
{
$component_expression = $component->getExpression();
if (!$component_expression instanceof ExpressionContainerInterface) {
throw new \LogicException('Cannot add expression to expression of type ' . $component_expression->getPluginId());
}
if ($this->uuid && ($expression = $component_expression->getExpression($this->uuid))) {
return $expression;
} else {
$expression = $this->expressionManager->createInstance($this->expressionId);
$rule_expression = $component->getExpression();
$rule_expression->addExpressionObject($expression);
return $expression;
}
}
/**
* Sets the Rules component to be stored.
*
* @param \Drupal\rules\Engine\RulesComponent $component
* The component.
*
* @return $this
*/
public function setComponent(\Drupal\rules\Engine\RulesComponent $component)
{
$this->setExpression($component->getExpression());
$this->setContextDefinitions($component->getContextDefinitions());
return $this;
}
/**
* Gets the currently edited expression from the given component.
*
* @param \Drupal\rules\Engine\RulesComponent $component
* The component from which to get the expression.
*
* @return \Drupal\rules\Engine\ExpressionInterface|null
* The expression object.
*/
protected function getEditedExpression(RulesComponent $component)
{
$rule_expression = $component->getExpression();
return $rule_expression->getExpression($this->uuid);
}
/**
* {@inheritdoc}
*/
public function updateFromComponent(RulesComponent $component)
{
// Note that the available context definitions stem from the configured
// events, which are handled separately.
$this->setExpression($component->getExpression());
return $this;
}
