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POCore Data saving a NS(Mutable)Array fails
 

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  1. POCore Data saving a NS(Mutable)Array fails
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    <p>I'm having a problem with Core Data. I have two Entities (Article and Manufacturer) (one containing a transformable attribute which is an array of the other entity). Everything's working fine till I try to add the array to the NSManagedObject. Here's some code:</p> <pre><code>@implementation HASArticleInitializer - (void)initialize:(NSArray *)initArray { //Alloc and init some local variables NSMutableArray *articleEntitiesArray = [NSMutableArray alloc] init]; for (NSInteger pageIndex = 1; pageIndex &lt;= pageCount; pageIndex++) { //Parsing the website //For-loop for every object on every page for (NSInteger object = 0; object &lt; [articleNumbersOnOnePageArray count]; object++) { //Doing other string manipulation and parsing stuff NSManagedObject *newArticleEntry = [NSEntityDescription insertNewObjectForEntityForName:@"Article"inManagedObjectContext:context]; [newArticleEntry setValue:[NSString stringWithFormat:@"%@_%@", manufacturerNumber, articleNumber] forKey:@"number"]; [newArticleEntry setValue:articleTextComplete forKey:@"text"]; [newArticleEntry setValue:articleStatus forKey:@"status"]; [newArticleEntry setValue:manufacturerName forKey:@"manufacturerName"]; [newArticleEntry setValue:manufacturerNumber forKey:@"manufacturerID"]; [articleEntitiesArray addObject:newArticleEntry]; } } NSManagedObject *newManufacturerEntry = [NSEntityDescription insertNewObjectForEntityForName:@"Manufacturer" inManagedObjectContext:context]; //Encoding the NSArray and setting the entity attribute to Binary Data doesn't work neither //NSData *arrayData = [NSKeyedArchiver archivedDataWithRootObject:articleEntitiesArray]; [newManufacturerEntry setValue:manufacturerName forKey:@"name"]; [newManufacturerEntry setValue:manufacturerNumber forKey:@"manufacturerID"]; [newManufacturerEntry setValue:manufacturerCount forKey:@"count"]; [newManufacturerEntry setValue:articleEntitiesArray forKey:@"articles"]; NSLog(@"%@", articleEntitiesArray); } @end </code></pre> <p>I tried everything I thought it could or couldn't help, I've really spend days on this, but I always get the following error when the AppDelegate's <code>- (IBAction)saveAction:(id)sender</code> method is called:</p> <pre><code>[15836:a057] -[NSManagedObject encodeWithCoder:]: unrecognized selector sent to instance 0x1001896e0 [15836:a057] An uncaught exception was raised [15836:a057] -[NSManagedObject encodeWithCoder:]: unrecognized selector sent to instance 0x1001896e0 [15836:a057] ( 0 CoreFoundation 0x00007fff8dc94716 __exceptionPreprocess + 198 1 libobjc.A.dylib 0x00007fff8bfe6470 objc_exception_throw + 43 2 CoreFoundation 0x00007fff8dd2ad5a -[NSObject(NSObject) doesNotRecognizeSelector:] + 186 3 CoreFoundation 0x00007fff8dc82c3e ___forwarding___ + 414 4 CoreFoundation 0x00007fff8dc82a28 _CF_forwarding_prep_0 + 232 5 Foundation 0x00007fff86931401 _encodeObject + 1163 6 Foundation 0x00007fff869323cc -[NSKeyedArchiver _encodeArrayOfObjects:forKey:] + 410 7 Foundation 0x00007fff869320c9 -[NSArray(NSArray) encodeWithCoder:] + 473 8 Foundation 0x00007fff86931401 _encodeObject + 1163 9 Foundation 0x00007fff869358f9 +[NSKeyedArchiver archivedDataWithRootObject:] + 182 10 iLoadPix 0x0000000100003c21 -[HASArticleInitializer initialize:] + 3793 11 Foundation 0x00007fff86926842 __NSThread__main__ + 1345 12 libsystem_c.dylib 0x00007fff88553782 _pthread_start + 327 13 libsystem_c.dylib 0x00007fff885401c1 thread_start + 13 </code></pre> <p>Core Data Model: <a href="http://imgur.com/lxAE9,p29CM#1" rel="nofollow">Entity 1</a> <a href="http://imgur.com/lxAE9,p29CM#0" rel="nofollow">Entity 2</a></p> <p>As I said, everything works fine if I don't save the array, the NSLog is correct, too. If it matters I use NSThreads (but I don't think so because everything else works just fine) :-(</p> <p>Please help me! Thanks so much in advance! :-(</p>
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