Pimcore\Model\Object\Service::getValueForObject PHP Method

    private static function getValueForObject($object, $key, $brickType = null, $brickKey = null, $fieldDefinition = null)
    {
        $getter = "get" . ucfirst($key);
        $value = $object->{$getter}();
        if (!empty($value) && !empty($brickType)) {
            $getBrickType = "get" . ucfirst($brickType);
            $value = $value->{$getBrickType}();
            if (!empty($value) && !empty($brickKey)) {
                $brickGetter = "get" . ucfirst($brickKey);
                $value = $value->{$brickGetter}();
            }
        }
        if (!$fieldDefinition) {
            $fieldDefinition = $object->getClass()->getFieldDefinition($key);
        }
        if (!empty($brickType) && !empty($brickKey)) {
            $brickClass = Objectbrick\Definition::getByKey($brickType);
            $fieldDefinition = $brickClass->getFieldDefinition($brickKey);
        }
        if ($fieldDefinition->isEmpty($value)) {
            $parent = self::hasInheritableParentObject($object);
            if (!empty($parent)) {
                return self::getValueForObject($parent, $key, $brickType, $brickKey, $fieldDefinition);
            }
        }
        $result = new \stdClass();
        $result->value = $value;
        $result->objectid = $object->getId();
        return $result;
    }