Allows you to sync CoreData entities with a Parse backend.

This is a new project and I can't guarantee that it's been thoroughly tested yet. So do your own due diligence before putting this in a production app! There are a few known issues that still need addressed. They are listed below.

Because I am still doing testing there is still a bunch of debug logging in place. If you don't want to see all of that, you can turn it off in FTASync.h.

It is assumed that you have already installed and setup these:

• Magical Record - Easier handling of the CoreData stuff. !!FTASync HAS NOT BEEN TESTED WITH MR 2.0!!
• [mogenerator] (https://github.com/rentzsch/mogenerator) - If you've never used it you should.
• [NPReachability] (https://github.com/Abizern/NPReachability) - Used to check for network connectivity pre-sync.
• Parse SDK
• (Optional) Crashlytics

1. Add a new data model version.
2. Add a new abstract entity to the data model and name it (and it's class name) FTASyncParent. Add the following attributes:
   • BOOL createdHere (Default: YES)
   • BOOL deleted (Default: NO)
   • String objectId
   • Int16 syncStatus (Default: 2)
   • Date updatedAt
3. For each entity that should sync, set the parent entity field to FTASyncParent.
4. Run mogenerator to generate your entity class files.
5. Add all the .h and .m files from the Source folder into your project. (FTASyncParent.h/m will replace the mogenerator generated files)
6. Add FTASync.h to your AppDelegate file.
7. Create a file with the name ParseKeys.h with these two lines:
   • #define kParseAppId @"<Your Parse App ID>"
   • #define kParseClientKey @"<Your Parse Client Key>"
   • (Optional) #define kCrashlyticsKey @"<Your Crashlytics Key>"
8. Add [FTASyncHandler sharedInstance]; to the - (BOOL)application:didFinishLaunchingWithOptions: method in your AppDelegate.
9. Add [PFACL setDefaultACL:[PFACL ACL] withAccessForCurrentUser:YES]; to the - (BOOL)application:didFinishLaunchingWithOptions: method in your AppDelegate. You can also setup some other ACL if you wish.
10. (Optional) Uncomment out //[Crashlytics startWithAPIKey:kCrashlyticsKey]; in the - (BOOL)application:didFinishLaunchingWithOptions: method in your AppDelegate.

It is assumed that you will handle user sign up and login on your own.

Simply add FTASync.h and call [[FTASyncHandler sharedInstance] syncWithCompletionBlock:nil progressBlock:nil];.

Optionally you can pass in completion and progress blocks. The signatures are in FTASyncHandler.h

Not supported yet.

There is an FTASyncLastSyncDate key added to the user defaults that contains the time of the last successful sync. Each time that value is updated an FTASyncDidSync notification is posted to the default notification center.

• Queries are limited to a return of 1000 objects by Parse

• Update to Magical Record 2.0
• Support sync of a single entity
• Add ability to check PFUser for updates on any other entity to save on API calls
• PFQuery is limited to 1000 returned objects, so support pagination beyond that
• Write unit tests

I am making this source code available for free under the MIT license. For the full license details see LICENSE.txt

Also, I am making the source code for a sample ToDo app (FTASyncDemo) available for free under the MIT license. This license grants you the right to do anything you like with the source code. However, you are asked not to re-submit the app as-is to Apple for App Store review. I have worked to create this sample app so you can learn how to utilize FTASync in your own app. So please, don't be a dick and re-submit it as your own to Apple. However, feel free to pull bits and pieces out and use them however you wish :).

Thanks to all the folks at the Colorado Springs, CO NSCoderNight for the code reviews and ideas. Special thanks to Tom Harrington for his debugging and architectural help!

Big thanks also to Duane Fields for providing code that I used to handle the overall sync management and threading!