public function FieldChain::addField in Corresponding Entity References 7.3

Prepends a field instance to this chain. If $completed is passed, we'll try to find the parents of the instance and recurse upwards, building a tree of "routes" to the instance.

File

field_object/includes/FieldChain.inc, line 52

Contains the FieldChain class.

Class

FieldChain

@class A doubly linked list of FieldInstance objects.

Code

public function addField(FieldInstance $field, array &$completed = NULL) {
  array_unshift($this->chain, $field);
  $this
    ->__wakeup();
  if (isset($completed)) {
    $parents = $field
      ->getParents();
    if ($parents) {
      foreach ($parents as $parent) {
        $branch = clone $this;
        $branch
          ->addField($parent, $completed);
      }
    }
    else {
      $completed[] = $this;
    }
  }
}