Getting the Version of a File

+ currentVersionOfItemAtURL:

Returns the most recent version object for the file at the specified URL.

Example

NSFileManager *fileManager = [NSFileManager defaultManager];
NSURL *directoryURL = [fileManager URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSURL *fileURL = [directoryURL URLByAppendingPathComponent:@"backupEezy/test.txt"];
NSLog(@"%@",[NSFileVersion currentVersionOfItemAtURL:fileURL].URL);
NSLog(@"%@",[NSFileVersion currentVersionOfItemAtURL:fileURL].localizedName);
NSLog(@"%@",[NSFileVersion currentVersionOfItemAtURL:fileURL].localizedNameOfSavingComputer);
NSLog(@"%@",[NSFileVersion currentVersionOfItemAtURL:fileURL].modificationDate);
NSLog(@"%@",[NSFileVersion currentVersionOfItemAtURL:fileURL].persistentIdentifier);
NSLog(@"%d",[NSFileVersion currentVersionOfItemAtURL:fileURL].conflict);
NSLog(@"%d",[NSFileVersion currentVersionOfItemAtURL:fileURL].resolved);

Output

2014-04-12 13:37:47.782 iOS-Tutorial[1322:a0b] file:///Users/rajkumar/Library/Application%20Support/iPhone%20Simulator/7.0/Applications/D6203A56-1113-4762-A533-D7AA6AB60356/Documents/backupEezy/test.txt
2014-04-12 13:37:47.811 iOS-Tutorial[1322:a0b] test.txt
2014-04-12 13:37:47.813 iOS-Tutorial[1322:a0b] (null)
2014-04-12 13:37:47.814 iOS-Tutorial[1322:a0b] 2014-04-12 07:22:51 +0000
2014-04-12 13:37:47.815 iOS-Tutorial[1322:a0b] {
}
2014-04-12 13:37:47.815 iOS-Tutorial[1322:a0b] 0
2014-04-12 13:37:47.816 iOS-Tutorial[1322:a0b] 1

+ otherVersionsOfItemAtURL:

Returns all versions of the specified file except the current version.

Example

NSFileManager *fileManager = [NSFileManager defaultManager];
NSURL *directoryURL = [fileManager URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSURL *fileURL = [directoryURL URLByAppendingPathComponent:@"backupEezy/test.txt"];
NSLog(@"%@",[NSFileVersion otherVersionsOfItemAtURL:fileURL]);

Output

2014-04-12 13:38:36.547 iOS-Tutorial[1336:a0b] (null)

+ versionOfItemAtURL:forPersistentIdentifier:

Returns the version of the file that has the specified persistent ID.

Example

NSFileManager *fileManager = [NSFileManager defaultManager];
NSURL *directoryURL = [fileManager URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSURL *fileURL = [directoryURL URLByAppendingPathComponent:@"backupEezy/test.txt"];
NSLog(@"%@",[NSFileVersion versionOfItemAtURL:fileURL forPersistentIdentifier:nil].localizedName);

Output

2014-04-12 13:41:36.892 iOS-Tutorial[1361:a0b] test.txt

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