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POiPhone - core data issue when adding
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  1. POiPhone - core data issue when adding
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    copied!<p>It is something simple but I just can't seem to find the problem. New elements aren't getting added into the database and I'm not getting any errors in my code.</p> <p>Here is the add method</p> <pre><code>- (void) addPressed:(NSNotification *) message { // Insert a new record in the database Track *track2 = [NSEntityDescription insertNewObjectForEntityForName: @"Track" inManagedObjectContext: managedObjectContext]; [managedObjectContext save: &amp;error]; tracks = [self fetchTracks]; // Insert a new item in the table's data source [tracks insertObject: track2 atIndex: 0]; // Insert a new row in the table NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection: 0]; addTrack.track = [tracks objectAtIndex: indexPath.row]; NSLog(@"here"); [[NSNotificationCenter defaultCenter] postNotificationName:@"choosePressed" object:self]; } </code></pre> <p>After add is called it sends a message to another view controller where the user picks a song from mpmediapicker and then hits a save button which selects this method</p> <pre><code>- (void) finishedEditing { if(start.text.length == 0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: @"You must fill out all fields" delegate: self cancelButtonTitle: @"OK" otherButtonTitles: nil]; alert.tag = 1; [alert show]; [alert release]; } else if(duration.text.length == 0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: @"You must fill out all fields" delegate: self cancelButtonTitle: @"OK" otherButtonTitles: nil]; alert.tag = 1; [alert show]; [alert release]; } else if(name.text.length == 0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: @"You must fill out all fields" delegate: self cancelButtonTitle: @"OK" otherButtonTitles: nil]; alert.tag = 1; [alert show]; [alert release]; } else if(songLabel.text.length == 0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Warning" message: @"You must select a song" delegate: self cancelButtonTitle: @"OK" otherButtonTitles: nil]; alert.tag = 1; [alert show]; [alert release]; } else { if (repeat) { track.title = NULL; track.name = NULL; repeat = NO; } else { songLabel.text = @""; artistLabel.text = @""; [self viewWillDisappear: YES]; [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; track.name = name.text; track.duration = duration.text; track.startloc = start.text; track.title = [song valueForProperty:MPMediaItemPropertyTitle]; NSManagedObjectContext *context = track.managedObjectContext; NSError *error = nil; [context save: &amp;error]; [[NSNotificationCenter defaultCenter] postNotificationName:@"myTraxsTab" object:self]; } } } </code></pre> <p>Im using a NSFetchRequest not a fetchedResults controller. Heres the code.</p> <pre><code>request = [[NSFetchRequest alloc] init]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey: @"name" ascending: YES]; sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; request.sortDescriptors = sortDescriptors; [sortDescriptor release]; error = nil; entity = [NSEntityDescription entityForName: @"Track" inManagedObjectContext: managedObjectContext]; request.entity = entity; </code></pre> <p><strong>UPDATE</strong></p> <p>Alright so I added a line to print the array in the else statement here</p> <pre><code>else { songLabel.text = @""; artistLabel.text = @""; [self viewWillDisappear: YES]; [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; track.name = name.text; track.duration = duration.text; track.startloc = start.text; track.title = [song valueForProperty:MPMediaItemPropertyTitle]; NSManagedObjectContext *context = track.managedObjectContext; NSError *error = nil; [context save: &amp;error]; NSLog(@"array: %@", tracks); [[NSNotificationCenter defaultCenter] postNotificationName:@"myTraxsTab" object:self]; } </code></pre> <p>And this is what it is printing. I don't know what Im missing. Its making me crazy. And I obviously added values to the name, duration and start labels.</p> <pre><code>array: ( "&lt;Track: 0x136d80&gt; (entity: Track; id: 0x13a120 &lt;x-coredata://9D789618-64C1-40BF-9F15-BA6A3EA715D3/Track/p7&gt; ; data: {\n duration = nil;\n name = nil;\n startloc = nil;\n title = nil;\n})" ) </code></pre>
 

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