dbListenChanges<T> function
dynamic
dbListenChanges<T>(})
Implementation
dbListenChanges<T>(String tableName, Function(List<T> data) _callback, {String? document}){
FirebaseFirestore.instance.collection(tableName).snapshots().listen((querySnapshot){
addStat(tableName, querySnapshot.docs.length);
List<T> t = _makeList(querySnapshot);
_callback(t);
}).onError((ex){
messageError(buildContext, "dbListenChanges $tableName $document " + ex.toString());
});
}