Hi, I've volunteered to develop an application a NGO needs. This organization has volunteers that will go to different places that have a workstation or laptop without Internet connection. There, they will fill some forms using the application. When a laptop is available they'll return home with the laptops and will connect to Internet.
The NGO needs to have a centralized database. My intention is using GAE for this. So the laptops must be able to sync with the central database: sending the data they have collected and recovering the data other users have sent. I've thought of doing exactly the same application, running locally with sqlite, and syncing with GAE when an Internet connection is available. I will have to replace the database id fields with uids to avoid duplication of keys between the volunteers. I would not like to reinvent the wheel for the syncronization, and I do think that someone else have had to deal with the same kind of problem before. So, what can you recommend me? Any advice is very welcome. José L.
