private function executeReorders($documents)
    {
        foreach ($documents as $oid => $list) {
            if (!$this->contains($oid)) {
                continue;
            }
            foreach ($list as $value) {
                list($parent, $src, $target, $before) = $value;
                $parentNode = $this->session->getNode($this->getDocumentId($parent));

                // check for src and target ...
                $dest = $target;
                if ($parentNode->hasNode($src) && $parentNode->hasNode($target)) {
                    // there is no orderAfter, so we need to find the child after target to use it in orderBefore
                    if (!$before) {
                        $dest = null;
                        $found = false;
                        foreach ($parentNode->getNodes() as $name => $child) {
                            if ($name === $target) {
                                $found = true;
                            } elseif ($found) {
                                $dest = $name;
                                break;
                            }
                        }
                    }

                    $parentNode->orderBefore($src, $dest);
                    $class = $this->dm->getClassMetadata(get_class($parent));
                    foreach ($class->childrenMappings as $fieldName) {
                        if ($parent instanceof Proxy && $parent->__isInitialized()) {
                            $children = $class->reflFields[$fieldName]->getValue($parent);
                            $children->refresh();
                        }
                    }
                }
            }
        }
    }