Fetch Request Code

fetchrequest.m

- (void)fetchRecords {
	
	// Define our table/entity to use
	NSEntityDescription *entity = [NSEntityDescription entityForName:@"Event" inManagedObjectContext:managedObjectContext];
	
	// Setup the fetch request
	NSFetchRequest *request = [[NSFetchRequest alloc] init];
	[request setEntity:entity];
	
	// Define how we will sort the records
	NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"timeStamp" ascending:NO];
	NSArray *sortDescriptors = [NSArray arrayWithObject:sortDescriptor];
	
	[request setSortDescriptors:sortDescriptors];
	[sortDescriptor release];
	
	// Fetch the records and handle an error
	NSError *error;
	NSMutableArray *mutableFetchResults = [[managedObjectContext executeFetchRequest:request error:&error] mutableCopy];
	
	if (!mutableFetchResults) {
		// Handle the error.
		// This is a serious error and should advise the user to restart the application
	}
	
	// Save our fetched data to an array
	[self setEventArray: mutableFetchResults];
	
	[mutableFetchResults release];
	[request release];
	
}