/**
* Checks that the current field includes a reference to the supplied document.
*/
public function includesReferenceTo($document)
{
if ($this->currentField) {
$mapping = $this->class->getFieldMapping($this->currentField);
$dbRef = $this->dm->createDBRef($document, $mapping);
if (isset($mapping['simple']) && $mapping['simple']) {
$this->query[$mapping['name']]['$elemMatch'] = $dbRef;
} else {
$keys = array('ref' => true, 'id' => true, 'db' => true);
if (isset($mapping['targetDocument'])) {
unset($keys['ref'], $keys['db']);
}
foreach ($keys as $key => $value) {
$this->query[$this->currentField]['$elemMatch']['$' . $key] = $dbRef['$' . $key];
}
}
} else {
$dbRef = $this->dm->createDBRef($document);
$this->query['$elemMatch'] = $dbRef;
}
return $this;
}
/**
* Returns the reference representation to be stored in Riak.
*
* If the document does not have an identifier and the mapping calls for a
* simple reference, null may be returned.
*
* @param array $referenceMapping
* @param object $document
* @return array|null
*/
public function prepareReferencedDocumentValue(array $referenceMapping, $document)
{
return $this->dm->createDBRef($document, $referenceMapping);
}