From 42a60805a9eca7eece55be6a9b5427e2885215d9 Mon Sep 17 00:00:00 2001
From: Junewoo <korca02220@naver.com>
Date: Thu, 18 Mar 2021 00:12:43 +0900
Subject: [PATCH] =?UTF-8?q?=EC=8B=A4=EC=A0=9C=20DB=EC=97=90=EC=84=9C=20upd?=
 =?UTF-8?q?ate=20=EB=90=98=EB=8F=84=EB=A1=9D=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EC=B6=94=EA=B0=80=20https://github.com/korca0220/Flutter=5Fpro?=
 =?UTF-8?q?ject=5Fsecond/issues/14?=
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---
 shop_app/lib/providers/products.dart          | 19 +++++++-
 shop_app/lib/screens/edit_product_screen.dart | 46 +++++++++----------
 2 files changed, 39 insertions(+), 26 deletions(-)

diff --git a/shop_app/lib/providers/products.dart b/shop_app/lib/providers/products.dart
index 4fd0475..fa162c5 100644
--- a/shop_app/lib/providers/products.dart
+++ b/shop_app/lib/providers/products.dart
@@ -1,3 +1,5 @@
+import 'dart:html';
+
 import 'package:flutter/foundation.dart';
 import 'dart:convert';
 import 'package:http/http.dart' as http;
@@ -73,8 +75,23 @@ class Products with ChangeNotifier {
     }
   }
 
-  void updateProduct(String id, Product newProduct) {
+  Future<void> updateProduct(String id, Product newProduct) async {
     final prodIndex = _items.indexWhere((element) => element.id == id);
+    if (prodIndex > 0) {
+      final url =
+          'https://flutter-shop-app-c87f7-default-rtdb.firebaseio.com/products/$id.json';
+      await http.patch(
+        Uri.parse(url),
+        body: json.encode(
+          {
+            'title': newProduct.title,
+            'description': newProduct.description,
+            'price': newProduct.price,
+            'imageUrl': newProduct.imageUrl,
+          },
+        ),
+      );
+    }
     if (prodIndex >= 0) {
       _items[prodIndex] = newProduct;
       notifyListeners();
diff --git a/shop_app/lib/screens/edit_product_screen.dart b/shop_app/lib/screens/edit_product_screen.dart
index 50479d6..9ed40f3 100644
--- a/shop_app/lib/screens/edit_product_screen.dart
+++ b/shop_app/lib/screens/edit_product_screen.dart
@@ -55,32 +55,28 @@ class _EditProductScreenState extends State<EditProductScreen> {
       _isLoading = true;
     });
     if (_editedProduct.id != null) {
-      Provider.of<Products>(context, listen: false)
-          .updateProduct(_editedProduct.id, _editedProduct);
-      setState(() {
-        _isLoading = false;
-      });
-      Navigator.of(context).pop();
-    }
-    try {
       await Provider.of<Products>(context, listen: false)
-          .addProduct(_editedProduct);
-    } catch (error) {
-      return showDialog<Null>(
-        context: context,
-        builder: (ctx) => AlertDialog(
-          title: Text('An Error occurred'),
-          content: Text('Something went '),
-          actions: <Widget>[
-            TextButton(
-                onPressed: () {
-                  Navigator.of(ctx).pop();
-                },
-                child: Text('Okay'))
-          ],
-        ),
-      );
-    } finally {
+          .updateProduct(_editedProduct.id, _editedProduct);
+    } else {
+      try {
+        await Provider.of<Products>(context, listen: false)
+            .addProduct(_editedProduct);
+      } catch (error) {
+        return showDialog<Null>(
+          context: context,
+          builder: (ctx) => AlertDialog(
+            title: Text('An Error occurred'),
+            content: Text('Something went '),
+            actions: <Widget>[
+              TextButton(
+                  onPressed: () {
+                    Navigator.of(ctx).pop();
+                  },
+                  child: Text('Okay'))
+            ],
+          ),
+        );
+      }
       setState(() {
         _isLoading = false;
       });