change name to delivery address

lib/pages/delivery_address/model/delivery_address_model.dart

@@ -0,0 +1,64 @@
+import 'dart:async';
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:fcs/data/services/services.dart';
+import 'package:fcs/domain/vo/delivery_address.dart';
+import 'package:fcs/pages/main/model/base_model.dart';
+import 'package:fcs/domain/constants.dart';
+import 'package:logging/logging.dart';
+
+class DeliveryAddressModel extends BaseModel {
+  final log = Logger('FcsShipmentModel');
+  List<DeliveryAddress> deliveryAddresses = [];
+
+  StreamSubscription<QuerySnapshot> listener;
+
+  @override
+  void privilegeChanged() {
+    super.privilegeChanged();
+    _loadDeliveryAddresses();
+  }
+
+  Future<void> _loadDeliveryAddresses() async {
+    if (user == null) return;
+    String path = "$delivery_address_collection/";
+    if (listener != null) listener.cancel();
+    deliveryAddresses = [];
+    try {
+      listener = Firestore.instance
+          .collection('users')
+          .document("${user.id}")
+          .collection("$path")
+          .snapshots()
+          .listen((QuerySnapshot snapshot) {
+        deliveryAddresses.clear();
+        deliveryAddresses = snapshot.documents.map((documentSnapshot) {
+          var s = DeliveryAddress.fromMap(
+              documentSnapshot.data, documentSnapshot.documentID);
+          return s;
+        }).toList();
+        notifyListeners();
+      });
+    } catch (e) {
+      log.warning("Error!! $e");
+    }
+  }
+
+  void initUser(user) {
+    super.initUser(user);
+  }
+
+  Future<void> createDeliveryAddress(DeliveryAddress deliveryAddress) {
+    return Services.instance.deliveryAddressService
+        .createDeliveryAddress(deliveryAddress);
+  }
+
+  Future<void> updateDeliveryAddress(DeliveryAddress deliveryAddress) {
+    return Services.instance.deliveryAddressService
+        .updateDeliveryAddress(deliveryAddress);
+  }
+
+  Future<void> deleteDeliveryAddress(DeliveryAddress deliveryAddress) {
+    return Services.instance.deliveryAddressService
+        .deleteDeliveryAddress(deliveryAddress);
+  }
+}