Example of deleteEntity:withCompletion

deleteEntity

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
    
        id<SODataEntity> entity = self.sortedEntities[indexPath.row];
        
        NSMutableArray *arr = [NSMutableArray arrayWithArray:self.sortedEntities];
        [arr removeObjectAtIndex:indexPath.row];
        self.sortedEntities = arr;
        
        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];
        
        [[DataController shared] deleteEntity:entity withCompletion:^(BOOL success) {
        
            [[DataController shared]fetchTravelAgencyEntitySet];


            /* Here, the developer knows the type of the SODataEntity, and the current ViewController.  
            It is possible that the end user has navigated away from this ViewController, but it is 
            still in the stack.  So, by invoking the -fetchTravelAgencySet, the developer knows that 
            the model will be updated soon, and any views which are observing the result of that GET 
            on the model will have the fresh data.  Otherwise, the other views would need to handle 
            the sequence of their refresh independently, and might not have the freshest information. */
        }];
    }
}