/**
* Loads an entity by a list of field criteria.
*
* @param array $criteria The criteria by which to load the entity.
* @param object $entity The entity to load the data into. If not specified,
* a new entity is created.
*/
public function load(array $criteria, $entity = null)
{
$stmt = $this->_conn->prepare($this->_getSelectSingleEntitySql($criteria));
$stmt->execute(array_values($criteria));
$data = array();
foreach ($stmt->fetch(\PDO::FETCH_ASSOC) as $column => $value) {
$fieldName = $this->_class->fieldNames[$column];
$data[$fieldName] = Type::getType($this->_class->getTypeOfField($fieldName))->convertToPHPValue($value);
}
$stmt->closeCursor();
if ($entity === null) {
$entity = $this->_em->getUnitOfWork()->createEntity($this->_entityName, $data);
} else {
foreach ($data as $field => $value) {
$this->_class->reflFields[$field]->setValue($entity, $value);
}
$id = array();
if ($this->_class->isIdentifierComposite) {
foreach ($this->_class->identifier as $fieldName) {
$id[] = $data[$fieldName];
}
} else {
$id = array($data[$this->_class->getSingleIdentifierFieldName()]);
}
$this->_em->getUnitOfWork()->registerManaged($entity, $id, $data);
}
if (!$this->_em->getConfiguration()->getAllowPartialObjects()) {
foreach ($this->_class->associationMappings as $field => $assoc) {
if ($assoc->isOneToOne()) {
if ($assoc->isLazilyFetched()) {
// Inject proxy
$proxy = $this->_em->getProxyGenerator()->getAssociationProxy($entity, $assoc);
$this->_class->reflFields[$field]->setValue($entity, $proxy);
} else {
//TODO: Eager fetch?
}
} else {
// Inject collection
$this->_class->reflFields[$field]->setValue($entity, new PersistentCollection($this->_em, $this->_em->getClassMetadata($assoc->targetEntityName)));
}
}
}
return $entity;
}