update method

Future<int> update (StorageOperator operator, String where, List whereArgs)

Implementation

Future<int> update(
    StorageOperator operator, String where, List whereArgs) async {
  Database db = await this.db;
  int id;
  try {
    id = await db.update(this.tableName, operator.toMap(),
        where: where, whereArgs: whereArgs);
  } catch (e) {
    await this.close();
    throw new Exception(e);
  }
  return id;
}