Check if file exists at URL instead of path

Question

How can I check if a file exists at a URL (instead of a path), in order to set a pre-populated default store into the iPhone Simulator:

NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"Food.sqlite"]; /*  Set up the store.  For the sake of illustration, provide a pre-populated default store.  */ NSFileManager *fileManager = [NSFileManager defaultManager]; // If the expected store doesn't exist, copy the default store. if (![fileManager fileExistsAtPath:storePath]) {     NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:@"Food" ofType:@"sqlite"];     if (defaultStorePath) {         [fileManager copyItemAtPath:defaultStorePath toPath:storePath error:NULL];     } } 

I've read that in recent versions of the templates, the applicationDocumentsDirectory method returns an URL, so I've changed the code to use NSURL objects to represent the file path. But at [fileManager fileExistsAtPath:storePath], I need to change fileExistsAtPath to something like fileExistsAtURL (obviously it doesn't exist).

I've checked the NSFileManager Class Reference and I didn't find any suitable task suited for my purpose.

Any hints please?

Answer 1

if (![fileManager fileExistsAtPath:[storeURL path]])  ... 

From the documentation:

If this URL object contains a file URL (as determined with isFileURL), the return value of this method is suitable for input into methods of NSFileManager or NSPathUtilities. If the path has a trailing slash it is stripped.