NSCFDate

[krevis at snoize.com (Kurt Revis)]

On Thursday, March 14, 2002, at 09:44  PM, Denise Eatherly wrote:

> 	( NSCalendarDate *)startDate
> 	{
> 		return [ volumeInfo objectForKey:@"startDate" ];
> 	}
>
> volumeInfo is a dictionary read in using:
> 	volumeInfo = [ NSDictionary dictionaryWithContentsOfFile:path ];
>
> It was originally created by this statement:
> 	volumeInfo = [ NSDictionary 
> dictionaryWithObjectsAndKeys:PRODUCT_STYLE, @"product", today, 
> @"startDate", [ NSCalendarDate distantFuture ], @"endDate",  nil ];
>
>  and saved to file by this method:
>         [ volumeInfo writeToFile:path atomically:YES ];

It is only possible to store an NSDate in a property list on disk, not a 
full NSCalendarDate. So when you read the dictionary back in from the 
file, you get an NSDate. (Really it's an NSCFDate, which is a private 
subclass of NSDate, but that doesn't matter for your purposes.)

So you need to convert the NSDate to an NSCalendarDate. This should work:

- (NSCalendarDate *)startDate
{
	NSDate *date;
	
	date = [volumeInfo objectForKey:@"startDate"];
	return [NSCalendarDate dateWithTimeIntervalSinceReferenceDate:[date 
timeIntervalSinceReferenceDate]];
}

--
Kurt Revis
krevis@xxxxxxxxxx