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POUnable to save correct Date using CoreData
 

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    <p>I created a CoreData application using the Cocoa Touch Template. I modified the included .xcdatamodel file to have an attribute called 'Date' with datatype of 'Date' and other string attributes.</p> <p>I use following codes to save data for the 'Date' field:</p> <pre><code>NSDateFormatter *dateFormatter=[[[NSDateFormatter alloc] init] autorelease] ; [dateFormatter setDateFormat:@"YYYY-MM-DD"]; NSDate *date= [[[NSDate alloc] init] autorelease]; date=[dateFormatter dateFromString:@"2010-03-01"]; [newManagedObject setValue:date forKey:@"Date"]; NSError *error; if (![context save:&amp;error]) { // Handle the error... } </code></pre> <p>To show the data in TableView I write following code in cellForRowAtIndexPath: method:</p> <pre><code>// Configure the cell. NSManagedObject *managedObject = [fetchedResultsController objectAtIndexPath:indexPath]; //Formatting Date Portion of Name NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setDateFormat:@"DD MMM YYYY"]; NSString *fName= [NSString stringWithFormat: @"%@: %@", [dateFormatter stringFromDate:[managedObject valueForKey:@"Date"]],[[managedObject valueForKey:@"Name"] description]]; </code></pre> <p>I am really surprised that cell in TableView shows - 01 Jan 1970: Test</p> <p>I also tried to use NSDateComponents instead of NSDateFormatter so I changed the code for saving date with:</p> <pre><code> NSDateComponents *comps = [[NSDateComponents alloc] init]; [comps setDay:1]; [comps setMonth:3]; [comps setYear:2010]; NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDate *date = [gregorian dateFromComponents:comps]; [comps release]; </code></pre> <p>This time surprisingly cell displayed - 60 Mar 2010.</p> <p>So I get 2 different but wrong values, but am unable to show the correct value which should be - 01 Mar 2010. I am really at loss of ideas on what could be going wrong here. </p> <p>Can anybody suggest me where can I begin looking? Is there anything wrong with my code? Are there some well recognised issues with saving dates using CoreData?</p> <p>Looking forward to your replies. Thanks in advance. </p>
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    1. USSachin Palewar
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