write method
Writes value associated with key.
This should create a new entry if key does not exist, or update the
existing entry if it does.
Implementation
@override
Future<void> write(String key, String value, StorageOptions options) async {
await _db.insert(_tableName, {
'key': key,
'json': value,
'expireAt': switch (options.cacheTime.duration) {
null => null,
final Duration duration =>
_currentTimestamp() + duration.inMilliseconds,
},
if (options.destroyKey != null) 'destroyKey': options.destroyKey,
}, conflictAlgorithm: ConflictAlgorithm.replace);
}