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PODatePicker Stopping CoreData Work
 

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    <p>I have an app which saves text and the date from a UIDatePicker and then shows that note if you got back into that date in the UIDatePicker.</p> <p>Its works great! Only I have found that setting the UIDatePicker date to today stops CoreData working!</p> <p>Its only when I run this setDate line does it stop core data from working. The app runs fine without crashing, it just doesn't save any data. If I comment that line out, its works a charm. But I need to have the UIDatePicker on today when the app loads.</p> <p>I use this when the application starts:</p> <pre><code>NSDate *now = [[NSDate alloc] init]; [datePicker setDate:now]; </code></pre> <p>This to fetch the note:</p> <pre><code>NSFetchRequest *fetch = [[NSFetchRequest alloc] init]; NSEntityDescription *testEntity = [NSEntityDescription entityForName:@"DatedText" inManagedObjectContext:self.managedObjectContext]; [fetch setEntity:testEntity]; NSPredicate *pred = [NSPredicate predicateWithFormat:@"dateSaved == %@", datePicker.date]; [fetch setPredicate:pred]; NSError *fetchError = nil; NSArray *fetchedObjs = [self.managedObjectContext executeFetchRequest:fetch error:&amp;fetchError]; if (fetchError != nil) { NSLog(@"fetchError = %@, details = %@",fetchError,fetchError.userInfo); } noteTextView.text = [[fetchedObjs objectAtIndex:0] valueForKey:@"savedText"]; </code></pre> <p>And this to save the note:</p> <pre><code>NSManagedObject *newDatedText; newDatedText = [NSEntityDescription insertNewObjectForEntityForName:@"DatedText" inManagedObjectContext:self.managedObjectContext]; [newDatedText setValue:noteTextView.text forKey:@"savedText"]; [newDatedText setValue:datePicker.date forKey:@"dateSaved"]; NSError *saveError = nil; [self.managedObjectContext save:&amp;saveError]; if (saveError != nil) { NSLog(@"[%@ saveContext] Error saving context: Error = %@, details = %@",[self class], saveError,saveError.userInfo); } </code></pre>
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    1. USJosh Kahane
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    1. COThe last few lines of code you posted show that the -save: method will pass back an error if it can't save. Are you seeing an error? If so, *what is it*? If no error, how are you sure it's not saving anything? How *exactly* are you verifying this? Also, your first block of code at app startup appears to leak an NSDate instance. You alloc/init without releasing it. Try [NSDate date] to return an autoreleased instance or release it after you're done with it (after you hand it to the date picker).
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      1. USJoshua Nozzi
 

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