setReal method

Future setReal(
  1. dynamic tableName,
  2. double value
)

Implementation

Future<dynamic> setReal(tableName, double value) async {
  Directory documentsDirectory = await getApplicationDocumentsDirectory();
  String path = join(documentsDirectory.path, "$tableName.db");
  Database _database = await openDatabase(path, version: _databaseVersion,
      onCreate: (Database db, int version) async {
    await db.execute(
        'CREATE TABLE ${tableName}1 (${tableName}_key INTEGER, $tableName REAL)');
  });
  Database db = _database;
  var getValue;
  getValue = Sqflite.firstIntValue(
      await db.rawQuery('SELECT COUNT(*) FROM ${tableName}1'));
  if (getValue == 0) {
    print("data will be inserted");
    return await db.transaction((txn) async {
      return await txn.rawInsert(
          'INSERT INTO ${tableName}1(${tableName}_key, $tableName) VALUES(?, ?)',
          [1, value]);
    });
  } else {
    print("data will be updated");
    return await db.rawUpdate(
        'UPDATE ${tableName}1 SET ${tableName}_key = ?, $tableName = ?',
        [1, value]);
  }
}