FlutterFire, Firestore is creating a new document with same id, instead of merging the field to the existing document Id. Unable to understand what I am doing wrong. function addDeliveryAgent
firebase_database.dart
class FirebaseDatabase {
CollectionReference<Map<String, dynamic>> users =
FirebaseFirestore.instance.collection('users');
CollectionReference<Map<String, dynamic>> orders =
FirebaseFirestore.instance.collection('testorders');
CollectionReference<Map<String, dynamic>> testorders =
FirebaseFirestore.instance.collection('testorders');
CollectionReference<Map<String, dynamic>> agent =
FirebaseFirestore.instance.collection('deliveryAgent');
Future<List<String>> getDeliveryAgent() async {
List<String> deliveryAgent = [];
try {
QuerySnapshot<Map<String, dynamic>> querySnapshot =
await FirebaseFirestore.instance.collection('deliveryAgent').get();
for (var queryDocumentSnapshot in querySnapshot.docs) {
deliveryAgent.add(queryDocumentSnapshot.data()["deliveryAgent"]);
}
} catch (e) {
if (kDebugMode) {
print("error while getting delivery agent: $e");
}
}
return deliveryAgent;
}
Future<bool> addDeliveryAgent(
{required String orderId, required String deliveryAgent}) async {
try {
await testorders.doc(orderId).set({
"deliveryAgent": deliveryAgent
}, SetOptions(merge: true));
return true;
} catch (e) {
if (kDebugMode) {
print("error while assigning delivery agent: $e");
}
}
return false;
}
}
order_view.dart
import 'package:flutter/material.dart';
import 'package:loading_animation_widget/loading_animation_widget.dart';
import '../../services/firebase_database.dart';
import '../widgets/snack_bar.dart';
import 'client_address.dart';
import 'dashboard.dart';
import 'package:url_launcher/url_launcher.dart';
class OrderView extends StatefulWidget {
final Map<String, dynamic> orderData;
final List<String> deliveryAgent;
const OrderView(
{Key? key, required this.orderData, required this.deliveryAgent})
: super(key: key);
@override
State<OrderView> createState() => _OrderViewState();
}
class _OrderViewState extends State<OrderView> {
final FirebaseDatabase _database = FirebaseDatabase();
int index = 0;
num totalAmount = 0;
Map<String, dynamic> clientData = {};
getcountTotalAmount() async {
for (var item in widget.orderData["orders"]) {
totalAmount = totalAmount + (item["productPrice"] * item["amount"]);
}
clientData = (await _database.getClientData(widget.orderData["userId"]))!;
setState(() {});
}
@override
void initState() {
getcountTotalAmount();
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.grey[200],
appBar: AppBar(
elevation: 4,
title: const Text("Open Order"),
actions: [
TextButton(
onPressed: () async {
showDialog(
context: context,
builder: (context) {
return AlertDialog(
content: const Text(
"Are you sure you want to cancel this order?",
textAlign: TextAlign.center,
),
actions: [
TextButton(
onPressed: () {
Navigator.pop(context);
},
child: const Text(
"No",
style:
TextStyle(color: Colors.green, fontSize: 16),
)),
TextButton(
onPressed: () async {
// Navigator.pop(context);
showDialog(
context: context,
builder: (context) {
return LoadingAnimationWidget.inkDrop(
color: Colors.orange,
size: 50,
);
});
await _database.removeOrder(
createTime: widget.orderData["createAt"],
);
Navigator.of(context).pop();
Navigator.of(context).pushAndRemoveUntil(
MaterialPageRoute(
builder: (context) =>
const AdminDashboard()),
ModalRoute.withName(''),
);
ScaffoldMessenger.of(context).showSnackBar(
snackBar(
message: "Your order is removed",
color: Colors.deepOrange),
);
},
child: const Text(
"Yes",
style: TextStyle(color: Colors.red, fontSize: 16),
)),
],
);
});
},
child: const Text(
"Cancel Order",
style: TextStyle(
color: Colors.red,
fontWeight: FontWeight.w500,
fontSize: 15,
),
),
),
],
),
body: SizedBox(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: ListView(
physics: const BouncingScrollPhysics(),
children: [
Container(
width: MediaQuery.of(context).size.width,
color: Colors.white,
padding: const EdgeInsets.only(bottom: 8),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
const Text(
"Delivery Agent",
style: TextStyle(
fontWeight: FontWeight.w500,
fontSize: 16,
),
),
DropdownButton(
items: widget.deliveryAgent
.map(
(e) => DropdownMenuItem(
value: e,
child: Text(e),
),
)
.toList(),
onChanged: (val) {
setState(() {
index =
widget.deliveryAgent.indexOf(val.toString());
});
},
isExpanded: false,
hint: Text(
widget.deliveryAgent[index],
style: const TextStyle(
fontWeight: FontWeight.w600,
fontSize: 15,
),
),
),
],
),
ElevatedButton(
onPressed: () async {
bool results;
results = await _database.addDeliveryAgent(
orderId: widget.orderData["orderId"],
deliveryAgent: widget.deliveryAgent[index],
);
},
child: const Text('Assign Agent')),
],
)),
],
),
),
);
}
}