since Firebase was updated I have been having some issues, first it was because now, instead of a map, an Object? is returned and that is now fixed, but I can't seem to get any data from the database. I can put it there fine but the reading is not working.
This is on my firebase_utils .dart file
FirebaseDatabase data = FirebaseDatabase.instance;
DatabaseReference database = data.ref();
Future<void> init() async {
FirebaseAuth.instance.userChanges().listen((user) {
if (user != null) {
//_loginState = ApplicationLoginState.loggedIn;
} else {
//_loginState = ApplicationLoginState.loggedOut;
}
});
if (!kIsWeb) {
data.setPersistenceEnabled(true);
data.setPersistenceCacheSizeBytes(10000000);
}
}
I have this class:
class ReservationStreamPublisher {
Stream<List<Reservation>> getReservationStream() {
final stream = database.child('reservations').onValue;
final streamToPublish = stream
.map((event) {
List<Reservation> reservationList = [];
Map<String, dynamic>.from(event.snapshot.value as dynamic)
.forEach((key, value) => reservationList.add(Reservation.fromRTDB(value)));
print(reservationList);
return reservationList;
});
return streamToPublish;
}
}
Next is my Reservation.fromRTDB
factory Reservation.fromRTDB(Map<String, dynamic> data) {
return Reservation(
pin: data['pin'],
day: data['day'],
hour: data['hour'],
duration: data['duration'],
state: data['state'],
userEmail: data['client_email'],
completed: data['completed'],
id: data['id'],
dateMade: '',
timeMade: '');
}
And this is one of the places where I am supposed to show data
Text('Slots Reservados neste dia:'),
_selectedDate != null
? StreamBuilder(
stream:
ReservationStreamPublisher().getReservationStream(),
builder: (context, snapshot) {
final tilesList = <ListTile>[];
if (snapshot.hasData) {
List reservations =
snapshot.data as List<Reservation>;
int i = 0;
do {
if (reservations.isNotEmpty) {
if (reservations[i].day !=
(DateFormat('dd/MM/yyyy')
.format(_selectedDate!))) {
reservations.removeAt(i);
i = i;
} else
i++;
}
} while (i < reservations.length);
try {
tilesList
.addAll(reservations.map((nextReservation) {
return ListTile(
leading: Icon(Icons.lock_clock),
title: Text(
"Das ${nextReservation.hour} as ${nextReservation.duration}"),
);
}));
} catch (e) {
return Text(
'Ainda nao existem reservas neste dia');
}
}
// }
if (tilesList.isNotEmpty) {
return Expanded(
child: ListView(
children: tilesList,
),
);
}
return Text('Ainda nao existem reservas neste dia');
})
: SizedBox(),
I am not getting any error at the moment, but no data is returned.This is a Reservation example on my RTDB
