findAndUpdate<T extends DbBaseModel> method

@override Future<DbResult<T>> findAndUpdate<T extends DbBaseModel>(String table, DbFilter filter, DbUpdate update, { DbFindUpdateOptions? findUpdateOptions, required T converter(Map<String, dynamic> map), })

查找并更新单条记录

• DbResult.success 当 DbResult.result!=null 时为true
• DbResult.rescode 返回结果的数量 或 异常标识-1
• DbResult.result 类型T的实例 或 null
• 注意：如果DbFindUpdateOptions.$upsert为true 但是 DbFindUpdateOptions.$returnNew非true, 则在成功upserted之后并不会返回新插入的对象数据，此时：DbResult.success为true，DbResult.rescode为0，DbResult.result为null

Implementation

@override
Future<DbResult<T>> findAndUpdate<T extends DbBaseModel>(String table, DbFilter filter, DbUpdate update, {DbFindUpdateOptions? findUpdateOptions, required T Function(Map<String, dynamic> map) converter}) async {
  if (findUpdateOptions?.$upsert == true && findUpdateOptions?.$returnNew != true) {
    logWarn(['findAndUpdate =>', table, 'DbFindUpdateOptions.\$upsert is true but DbFindUpdateOptions.\$returnNew is not true, may cause return null result.']);
  }
  try {
    final result = await _handle.findAndUpdate(table, filter, update, findUpdateOptions: findUpdateOptions, converter: converter);
    (result.success ? logDebug : logWarn)(['findAndUpdate =>', table, filter, update, findUpdateOptions, result]);
    return result;
  } catch (error, stack) {
    logError(['findAndUpdate =>', table, filter, update, findUpdateOptions, error, '\n', stack]);
    return DbResult(success: false, rescode: -1, message: error.toString());
  }
}