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POSaving and receiving URL not working
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  1. POSaving and receiving URL not working
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    copied!<p>I am trying to save a URL for a video to core data. To do this I am creating a string containing the URL, saving it to core data, and then retrieving it in another view controller. When retrieving it in the other View Controller, I get this error: <code>Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL initWithString:relativeToURL:]: nil string parameter'</code> I have worked out that the URL being saved contains the URL, but when receiving it, it is nill. How would I fix this.</p> <p>Here is the code to save the URL:</p> <pre><code>- (void) saveVideo { NSManagedObjectContext *context = [self managedObjectContext]; TimeTravelDetails *timeTravelDetails = [NSEntityDescription insertNewObjectForEntityForName:@"TimeTravelDetails" inManagedObjectContext:context]; NSString *stringForSave = [self.videoURL absoluteString]; NSLog(@"String being saved: %@", stringForSave); [timeTravelDetails setValue: stringForSave forKey:@"urlString"]; NSError *error = nil; if (![self.managedObjectContext save:&amp;error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } else { NSLog(@"URL String saved"); NSLog(@"String being saved: %@", stringForSave); } //NSLog(@"%@", self.videoURL); } </code></pre> <p>Here is were I retrieve it:</p> <pre><code>- (void) getUrl { NSManagedObjectContext *context = [self managedObjectContext]; TimeTravelDetails *timeTravelDetails = [NSEntityDescription insertNewObjectForEntityForName:@"TimeTravelDetails" inManagedObjectContext:context]; NSString *stringForURL = [[NSString alloc] init]; stringForURL = timeTravelDetails.urlString; NSLog(@"The string has been recieved: %@", stringForURL); self.finalURL = [[NSURL alloc] initWithString:stringForURL]; } </code></pre>
 

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