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POCan't get data from my core-data database
 

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  1. POCan't get data from my core-data database
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    <p>I am always getting my data from my webservice on the same way. It always worked. But now I am getting this error.</p> <pre><code>*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+entityForName: nil is not a legal NSManagedObjectContext parameter searching for entity name 'Team'' </code></pre> <p>It is crashing in this method.</p> <pre><code>- (NSMutableArray *)getDoelmannen { NSLog(@"tot hier doelman"); NSArray *results = [[NSArray alloc]init]; NSFetchRequest *request = [[NSFetchRequest alloc] init]; [request setEntity:[NSEntityDescription entityForName:@"Team" inManagedObjectContext:self.genkDatabase.managedObjectContext]]; request.predicate = [NSPredicate predicateWithFormat:@"position ==[c] %@", @"Doelman"]; NSLog(@"predicate is: %@",request.predicate); NSError *error = nil; NSLog(@"tot hier"); results = [self.genkDatabase.managedObjectContext executeFetchRequest:request error:&amp;error]; return [results valueForKey:@"image"] ; } </code></pre> <p>For opening my database I use the following methods.</p> <pre><code>-(void)viewWillAppear:(BOOL)animated { if (!self.genkDatabase) { // we'll create a default database if none is set NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; url = [url URLByAppendingPathComponent:@"Default appGenk Database"]; self.genkDatabase = [[UIManagedDocument alloc] initWithFileURL:url]; // setter will create this for us on disk } } - (void)setGenkDatabase:(UIManagedDocument *)genkDatabase { if (_genkDatabase != genkDatabase) { _genkDatabase = genkDatabase; [self useDocument]; } } - (void)useDocument { if (![[NSFileManager defaultManager] fileExistsAtPath:[self.genkDatabase.fileURL path]]) { // does not exist on disk, so create it [self.genkDatabase saveToURL:self.genkDatabase.fileURL forSaveOperation:UIDocumentSaveForCreating completionHandler:^(BOOL success) { NSLog(@"bestaat niet"); [self getTeam]; }]; } else if (self.genkDatabase.documentState == UIDocumentStateClosed) { // exists on disk, but we need to open it [self.genkDatabase openWithCompletionHandler:^(BOOL success) { NSLog(@"closed"); [self getTeam]; }]; } else if (self.genkDatabase.documentState == UIDocumentStateNormal) { // already open and ready to use NSLog(@"Normal"); [self getTeam]; } } </code></pre> <p>Can anybody help me? </p> <p>Kind regards.</p> <p><em><strong>EDTI</em></strong></p> <p>It's very strange because when I test the method in anohter viewcontroller it works. The only difference is in my .h file I do this. </p> <pre><code> @interface MultimediaViewController : CoreDataTableViewController </code></pre> <p>And in the viewController where it doesn't works it does this.</p> <pre><code>@interface MultimediaViewController : NRGridViewController </code></pre> <p>But I still did import it like this.</p> <pre><code>#import "CoreDataTableViewController.h" </code></pre>
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    1. PO
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USSteaphann
    1. USSteaphann
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POCan't get data from my core-data database
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    1. COThis error plainly states that this entity doesn't exists. I would double check the database file, remove all predicates which gives you all items. One step at a time
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      1. POCan't get data from my core-data database
      1. USTrausti Thor
    2. CO@TraustiThor also without the predicate no success
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      1. USSteaphann
    3. COSame invalid error ?
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      1. POCan't get data from my core-data database
      1. USTrausti Thor
 

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