query method
Execute a query
Implementation
Future<List<Map<String, dynamic>>?> query(String? q,
{bool verbose = false}) async {
/// [q] the query to execute
try {
if (!_isReady) {
throw DatabaseNotReady();
}
final timer = Stopwatch()..start();
List<Map<String, dynamic>>? res;
await _db!.transaction((txn) async {
res = await txn.rawQuery(q!);
}).catchError((dynamic e) =>
throw RawQueryException("Can not execute query $q $e"));
timer.stop();
if (verbose) {
final msg = "$q in ${timer.elapsedMilliseconds} ms";
print(msg);
}
return res;
} catch (e) {
rethrow;
}
}