add_data_to_core_data_via_instance_method

//this is my method to save data into core data
-(BOOL) createNewMessageWithMessage:(NSString *)message date:(NSDate *)theDate andStatus:(NSNumber *)status{
    BOOL result=NO;

    MessageEntity *newMessage =[NSEntityDescription insertNewObjectForEntityForName:@"MessageEntity" inManagedObjectContext:sharedDa.managedObjectContext];
        if (newMessage!=nil) {

        NSLog(@"Created new instance message via instance method");

        newMessage.messageContent= message;
        newMessage.messageDate =theDate   ;
        newMessage.status = status;

        NSError *savingError=nil;
        if (savingError ==nil) {
            [sharedDa.managedObjectContext save:&savingError];

        }else{
            NSLog(@"Failed to save the message! \n Error: %@", [savingError localizedDescription]);

        }
    }
    else{

        NSLog(@"Failure in creating a message!");

    }

    return (result);

}
//and below is how is call the method above

- (IBAction)meesajlar:(id)sender {



  NSURL *messagesURL=[NSURL URLWithString:[NSString stringWithFormat:@"http://%@:%@/ipad/main.php?key=%@",[sharedDa serverID], [sharedDa portID],[[sharedDa firstResponse]objectForKey:@"key"]]];

    NSLog(@"myURL is: %@", messagesURL);

    NSData *data=[NSData dataWithContentsOfURL:messagesURL];

    NSError *error=nil;
      NSDictionary *result=[NSJSONSerialization JSONObjectWithData:data options:
                            NSJSONReadingMutableContainers error:&error];

    NSLog(@"Error: %@", [error localizedDescription]);
    NSDictionary *tempMessage=[localResult objectForKey:@"message"];
    NSLog(@"tempMessage: %@", tempMessage);
    for(NSDictionary *aMessage in tempMessage){

        NSLog(@"[tempMessage message: %@", [aMessage objectForKey:@"message"]);
        NSLog(@"[tempMessage date: %@", [aMessage objectForKey:@"date"]);


        [self createNewMessageWithMessage:[aMessage objectForKey:@"message"] date:[NSDate date] andStatus:nil];
        //add status and date too as like the message
    }
       sharedDa.messagesDictionary= result;


    Messages *mes=[[[Messages alloc]initWithNibName:@"Messages" bundle:nil]autorelease];
    [self.navigationController pushViewController:mes animated:YES];
}