[firebase_database] transaction do nothing

[ektelat]

i run transaction to add 1 to the last value, put it return the last value
this my code:
Future saveNewMission(Message message) async {
TransactionResult res = await _firebase
.reference()
.child('offices')
.child(this.officeKey)
.child('counters/missions')
.runTransaction((count) async {
count.value = (count.value ?? 0) + 1;
return count;
});

this.count = res.dataSnapshot.value;

always i get la last value that saved on the database

[Ehesp]

Hi @ektelat due to the age and inactivity of this issue I'm going to close it. Please try upgrading versions of Flutter & the plugin as there has been many changes since this issue was created.

If it continues to be a problem after upgrading, please create a new issue following the issue template.