diff --git a/SeedDMS_Core/Core/inc.ClassDocument.php b/SeedDMS_Core/Core/inc.ClassDocument.php
index 1aba718e6..0ed87b0bf 100644
--- a/SeedDMS_Core/Core/inc.ClassDocument.php
+++ b/SeedDMS_Core/Core/inc.ClassDocument.php
@@ -315,8 +315,12 @@ class SeedDMS_Core_Document extends SeedDMS_Core_Object { /* {{{ */
 
 		if(!$date)
 			$date = time();
+		else {
+			if(!is_numeric($date))
+				return false;
+		}
 
-		$queryStr = "UPDATE tblDocuments SET date = " . $date . " WHERE id = ". $this->_id;
+		$queryStr = "UPDATE tblDocuments SET date = " . (int) $date . " WHERE id = ". $this->_id;
 		if (!$db->getResult($queryStr))
 			return false;
 		$this->_date = $date;
@@ -2611,6 +2615,73 @@ class SeedDMS_Core_DocumentContent extends SeedDMS_Core_Object { /* {{{ */
 		return $this->_reviewStatus;
 	} /* }}} */
 
+	/**
+	 * Rewrites the complete review log
+	 * 
+	 * Attention: this function is highly dangerous.
+	 * It removes an existing review log and rewrites it.
+	 * This method was added for importing an xml dump.
+	 *
+	 * @param array $reviewlog new status log with the newest log entry first.
+	 * @return boolean true on success, otherwise false
+	 */
+	function rewriteReviewLog($reviewers) { /* {{{ */
+		$db = $this->_document->_dms->getDB();
+
+		$queryStr= "SELECT `tblDocumentReviewers`.* FROM `tblDocumentReviewers` WHERE `tblDocumentReviewers`.`documentID` = '". $this->_document->getID() ."' AND `tblDocumentReviewers`.`version` = '". $this->_version ."' ";
+		$res = $db->getResultArray($queryStr);
+		if (is_bool($res) && !$res)
+			return false;
+
+		$db->startTransaction();
+
+		if($res) {
+			foreach($res as $review) {
+				$reviewID = $review['reviewID'];
+
+				/* First, remove the old entries */
+				$queryStr = "DELETE from `tblDocumentReviewLog` where `reviewID`=".$reviewID;
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+
+				$queryStr = "DELETE from `tblDocumentReviewers` where `reviewID`=".$reviewID;
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+			}
+		}
+
+		/* Second, insert the new entries */
+		foreach($reviewers as $review) {
+			$queryStr = "INSERT INTO `tblDocumentReviewers` (`documentID`, `version`, `type`, `required`) ".
+				"VALUES ('".$this->_document->getID()."', '".$this->_version."', ".$review['type'] .", ".$review['required']->getID().")";
+			if (!$db->getResult($queryStr)) {
+				$db->rollbackTransaction();
+				return false;
+			}
+			$reviewID = $db->getInsertID();
+			$reviewlog = array_reverse($review['logs']);
+			foreach($reviewlog as $log) {
+				if(!SeedDMS_Core_DMS::checkDate($log['date'], 'Y-m-d H:i:s')) {
+					$db->rollbackTransaction();
+					return false;
+				}
+				$queryStr = "INSERT INTO `tblDocumentReviewLog` (`reviewID`, `status`, `comment`, `date`, `userID`) ".
+					"VALUES ('".$reviewID ."', '".(int) $log['status']."', ".$db->qstr($log['comment']) .", ".$db->qstr($log['date']).", ".$log['user']->getID().")";
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+			}
+		}
+
+		$db->commitTransaction();
+		return true;
+	} /* }}} */
+
 	/**
 	 * Get the current approval status of the document content
 	 * The approval status is a list of approvals and its current status
@@ -2668,6 +2739,73 @@ class SeedDMS_Core_DocumentContent extends SeedDMS_Core_Object { /* {{{ */
 		return $this->_approvalStatus;
 	} /* }}} */
 
+	/**
+	 * Rewrites the complete approval log
+	 * 
+	 * Attention: this function is highly dangerous.
+	 * It removes an existing review log and rewrites it.
+	 * This method was added for importing an xml dump.
+	 *
+	 * @param array $reviewlog new status log with the newest log entry first.
+	 * @return boolean true on success, otherwise false
+	 */
+	function rewriteApprovalLog($reviewers) { /* {{{ */
+		$db = $this->_document->_dms->getDB();
+
+		$queryStr= "SELECT `tblDocumentApprovers`.* FROM `tblDocumentApprovers` WHERE `tblDocumentApprovers`.`documentID` = '". $this->_document->getID() ."' AND `tblDocumentApprovers`.`version` = '". $this->_version ."' ";
+		$res = $db->getResultArray($queryStr);
+		if (is_bool($res) && !$res)
+			return false;
+
+		$db->startTransaction();
+
+		if($res) {
+			foreach($res as $review) {
+				$reviewID = $review['reviewID'];
+
+				/* First, remove the old entries */
+				$queryStr = "DELETE from `tblDocumentApproveLog` where `approveID`=".$reviewID;
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+
+				$queryStr = "DELETE from `tblDocumentApprovers` where `approveID`=".$reviewID;
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+			}
+		}
+
+		/* Second, insert the new entries */
+		foreach($reviewers as $review) {
+			$queryStr = "INSERT INTO `tblDocumentApprovers` (`documentID`, `version`, `type`, `required`) ".
+				"VALUES ('".$this->_document->getID()."', '".$this->_version."', ".$review['type'] .", ".$review['required']->getID().")";
+			if (!$db->getResult($queryStr)) {
+				$db->rollbackTransaction();
+				return false;
+			}
+			$reviewID = $db->getInsertID();
+			$reviewlog = array_reverse($review['logs']);
+			foreach($reviewlog as $log) {
+				if(!SeedDMS_Core_DMS::checkDate($log['date'], 'Y-m-d H:i:s')) {
+					$db->rollbackTransaction();
+					return false;
+				}
+				$queryStr = "INSERT INTO `tblDocumentApproveLog` (`approveID`, `status`, `comment`, `date`, `userID`) ".
+					"VALUES ('".$reviewID ."', '".(int) $log['status']."', ".$db->qstr($log['comment']) .", ".$db->qstr($log['date']).", ".$log['user']->getID().")";
+				if (!$db->getResult($queryStr)) {
+					$db->rollbackTransaction();
+					return false;
+				}
+			}
+		}
+
+		$db->commitTransaction();
+		return true;
+	} /* }}} */
+
 	function addIndReviewer($user, $requestUser, $listadmin=false) { /* {{{ */
 		$db = $this->_document->_dms->getDB();