DetailViewController.m

- (void)pressSaveButton
{
    NSDictionary *fields  = @{@"Name": _nameField.text};
    SFRestRequest *request = [[SFRestAPI sharedInstance] requestForUpdateWithObjectType:@"Account"
                                                                               objectId:_idData
                                                                                 fields:fields];
    [[SFRestAPI sharedInstance] send:request delegate:self];
}

#pragma mark - SFRestAPIDelegate

- (void)request:(SFRestRequest *)request didLoadResponse:(id)jsonResponse
{
    dispatch_async(dispatch_get_main_queue(), ^{
        [self.navigationController popViewControllerAnimated:YES];
    });
}

- (void)request:(SFRestRequest*)request didFailLoadWithError:(NSError*)error
{
    //通信エラーが発生した場合の処理
    if([error code] == -1009){
        [self tempDataUpdate];
    }
    NSLog(@"request:didFailLoadWithError: %@", error);
}

- (void)tempDataUpdate
{
    NSDictionary *updateobj  = @{@"Name": _nameField.text, @"Id": _idData};
    [[[SmartStoreInterface alloc] init] upsertAccount:updateobj];
}