update rate

lib/pages/rates/custom_editor.dart

@@ -7,6 +7,9 @@ import 'package:fcs/pages/widgets/progress.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:provider/provider.dart';
+
+import 'model/shipment_rate_model.dart';
 
 class CustomEditor extends StatefulWidget {
   final CustomDuty custom;
@@ -22,6 +25,7 @@ class _CustomEditorState extends State<CustomEditor> {
 
   bool _isLoading = false;
   CustomDuty _custom = new CustomDuty();
+  bool _isNew = false;
 
   @override
   void initState() {
@@ -30,6 +34,8 @@ class _CustomEditorState extends State<CustomEditor> {
       _custom = widget.custom;
       _productController.text = _custom.productType;
       _feeController.text = _custom.fee.toString();
+    } else {
+      _isNew = true;
     }
   }
 
@@ -62,6 +68,12 @@ class _CustomEditorState extends State<CustomEditor> {
           backgroundColor: primaryColor,
           title:
               Text(AppTranslations.of(context).text("rate.custom.form.title")),
+          actions: [
+            IconButton(
+              icon: Icon(Icons.delete),
+              onPressed: _delete,
+            )
+          ],
         ),
         body: Container(
           padding: EdgeInsets.all(18),
@@ -76,9 +88,8 @@ class _CustomEditorState extends State<CustomEditor> {
                   ],
                 ),
               ),
-              widget.custom == null
-                  ? fcsButton(context, "Create", callack: () {})
-                  : fcsButton(context, "Save", callack: () {}),
+              fcsButton(context, getLocalString(context, "btn.save"),
+                  callack: _save),
               SizedBox(height: 10)
             ],
           ),
@@ -86,4 +97,53 @@ class _CustomEditorState extends State<CustomEditor> {
       ),
     );
   }
+
+  _save() async {
+    setState(() {
+      _isLoading = true;
+    });
+    try {
+      var shipmentRateModel =
+          Provider.of<ShipmentRateModel>(context, listen: false);
+      CustomDuty _customduty = CustomDuty(
+          productType: _productController.text,
+          fee: double.parse(_feeController.text));
+      if (_isNew) {
+        await shipmentRateModel.addCustomDuty(_customduty);
+      } else {
+        _customduty.id = widget.custom.id;
+        await shipmentRateModel.updateCustomDuty(_customduty);
+      }
+      Navigator.pop(context);
+    } catch (e) {
+      showMsgDialog(context, "Error", e.toString());
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+    }
+  }
+
+  _delete() {
+    showConfirmDialog(
+        context, "cargo.edit.delete.confirm", _deleteCustomDuty);
+  }
+
+  _deleteCustomDuty() async {
+    setState(() {
+      _isLoading = true;
+    });
+    try {
+      var shipmentRateModel =
+          Provider.of<ShipmentRateModel>(context, listen: false);
+      await shipmentRateModel.deleteCustomDuty(widget.custom.id);
+      Navigator.pop(context);
+    } catch (e) {
+      showMsgDialog(context, "Error", e.toString());
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+    }
+  }
 }