add shipments

lib/pages/fcs_shipment/model/fcs_shipment_model.dart

@@ -75,7 +75,7 @@ class FcsShipmentModel extends BaseModel {
         .collection("/$fcs_shipment_collection")
         .where("is_delivered", isEqualTo: true)
         .where("is_deleted", isEqualTo: false)
-        .orderBy("current_status_date", descending: true);
+        .orderBy("status_date", descending: true);
     var paginator = new Paginator(pageQuery, rowPerLoad: 20, toObj: (data, id) {
       return FcsShipment.fromMap(data, id);
     });
@@ -98,6 +98,24 @@ class FcsShipmentModel extends BaseModel {
     });
   }
 
+  Future<List<FcsShipment>> getActiveFcsShipments() async {
+    List<FcsShipment> fcsShipments = [];
+    try {
+      var snaps = await Firestore.instance
+          .collection("/$fcs_shipment_collection")
+          .where("status", isEqualTo: fcs_shipment_confirmed_status)
+          .getDocuments(source: Source.server);
+      fcsShipments = snaps.documents.map((documentSnapshot) {
+        var fcs = FcsShipment.fromMap(
+            documentSnapshot.data, documentSnapshot.documentID);
+        return fcs;
+      }).toList();
+    } catch (e) {
+      log.warning("Error!! $e");
+    }
+    return fcsShipments;
+  }
+
   void initUser(user) {
     super.initUser(user);
   }
@@ -116,4 +134,8 @@ class FcsShipmentModel extends BaseModel {
   Future<void> update(FcsShipment fcsShipment) {
     return Services.instance.fcsShipmentService.updateFcsShipment(fcsShipment);
   }
+
+  Future<void> ship(FcsShipment fcsShipment) {
+    return Services.instance.fcsShipmentService.ship(fcsShipment);
+  }
 }