Rooms API: upload / delete a room picture

- update the room after a picture has been added, updated, or deleted
  - this seems to fix an issue with some pictures not being uploaded / deleted when the API is called multiple times in a sequence for a particular room

JavaSource/org/unitime/timetable/api/connectors/RoomsConnector.java

@@ -161,6 +161,7 @@ public void doDelete(ApiHelper helper) throws IOException {
 
 			picture.getLocation().getPictures().remove(picture);
 			helper.getHibSession().delete(picture);
+			helper.getHibSession().saveOrUpdate(picture.getLocation());
 			helper.getHibSession().flush();
 
 			helper.setResponse(new RoomPictureInterface(picture.getUniqueId(), picture.getFileName(), picture.getContentType(), picture.getTimeStamp().getTime(), RoomPicturesBackend.getPictureType(picture.getType())));
@@ -232,6 +233,7 @@ protected void updatePicture(ApiHelper helper, Location location, BinaryFile fil
 		picture.setTimeStamp(new Date());
 		picture.setDataFile(file.getBytes());
 		helper.getHibSession().saveOrUpdate(picture);
+		helper.getHibSession().saveOrUpdate(location);
 		helper.getHibSession().flush();
 		helper.setResponse(new RoomPictureInterface(picture.getUniqueId(), picture.getFileName(), picture.getContentType(), picture.getTimeStamp().getTime(), RoomPicturesBackend.getPictureType(picture.getType())));
 	}

WebContent/help/Release-Notes.xml

@@ -143,6 +143,7 @@
 			<name>Room Pictures</name>
 			<description>
 				<line>Rooms, Room Detail: added a mouse-over which shows a bigger picture (limited to 800 x 600 pixels).</line>
+				<line>Rooms API: fixed an issue with some pictures not being uploaded / deleted when the API is called multiple times in a sequence for a particular room.</line>
 			</description>
 		</item>
 	</category>