public function CerFieldChainHandler::__construct in Corresponding Entity References 7.3

File

includes/CerFieldChainHandler.inc, line 34

Contains the CerFieldChainHandler object.

Class

CerFieldChainHandler

@class Wraps around every CerFieldHandler object in a chain. In any given chain, there could be many entities that need to be processed -- think about multi-value field collections embedded within other multi-value field collections, and you…

Code

public function __construct(CerFieldChain $chain, EntityDrupalWrapper $entity) {
  $this->chain = $chain;
  $this->entity = $entity;
  $chain
    ->__wakeup();
  $chain
    ->seek($entity->cer->depth
    ->value());
  $field = $chain
    ->current();

  // If the field has a child, there could be extensive recusion here. So we'll need
  // to iterate over the entire chain recursively -- luckily, SPL provides the
  // RecursiveIteratorIterator class for this purpose. But if there are no children,
  // we don't need to recurse; the only handler we'll need to load is the current
  // field's, for the current entity.
  if ($field
    ->child()) {
    $this->handlers = new RecursiveIteratorIterator(new CerEndPointIterator($field, $entity));
  }
  else {

    // Wrap the handler in an array, just to normalize things internally.
    $this->handlers = array(
      $field
        ->getHandler($entity),
    );
  }
}