/**
* @param mixed $value
* @param int $level
* @param array|null $config
*
* @return mixed
*/
protected function normalizeValue($value, $level, $config = null)
{
if (is_array($value)) {
$nextLevel = $level + 1;
foreach ($value as &$val) {
$val = $this->normalizeValue($val, $nextLevel, $config);
}
} elseif (is_object($value)) {
$objectNormalizer = $this->getObjectNormalizer($value);
if (null !== $objectNormalizer) {
$value = $objectNormalizer->normalize($value);
} elseif ($value instanceof \Traversable) {
$result = [];
$nextLevel = $level + 1;
foreach ($value as $val) {
$result[] = $this->normalizeValue($val, $nextLevel, $config);
}
$value = $result;
} elseif (!empty($config)) {
$value = $this->normalizeObjectByConfig($value, $config, $level);
} elseif ($this->doctrineHelper->isManageableEntity($value)) {
if ($level <= static::MAX_NESTING_LEVEL) {
$value = $this->normalizeEntity($value, $level);
} else {
$entityId = $this->doctrineHelper->getEntityIdentifier($value);
$count = count($entityId);
if ($count === 1) {
$value = reset($entityId);
} elseif ($count > 1) {
$value = $entityId;
} else {
throw new \RuntimeException(sprintf('The entity "%s" does not have an identifier.', ClassUtils::getClass($value)));
}
}
} else {
if ($level <= static::MAX_NESTING_LEVEL) {
$value = $this->normalizePlainObject($value, $level);
} elseif (method_exists($value, '__toString')) {
$value = (string) $value;
} else {
throw new \RuntimeException(sprintf('Instance of "%s" cannot be normalized.', get_class($value)));
}
}
}
return $value;
}