This is an Xcode project that illustrates a PFQueryTableViewController problem I encounter.
In my PFQueryTableViewController with paging enabled, I use a query with the following constraint: orderByDescending:@"createdAt"
The issue occurs when loadNextPage is called while new items have been added to the db without having previously refreshed the table; the loaded objects are duplicates.
- Clone the repository and open the Xcode project.
- Add your Parse application id and client key in
ParseStarterProjectAppDelegate.m - Run in simulator
- Create 4 todo objects by touching 4 times the '+' button
- Refresh the table by pulling down it's header. Two objects should be showing (Object per page is set to 2) plus the "Load More..." cell.
- Create 2 more objects by touching 2 times the '+' button
- Clic on the "Load More..." cell
- Duplicates of already displayed objects should show up, instead of the two next objects initaly created, as I would have expected.
I would have expected loadNextPage to return the two following objects instead of duplicates, even if new there has been new entries in database between two fetches. Is that a bug?
How can I use loadNextPage with this kind of query, without having to previously refresh the table?