Can reload survey

lib/helpers/survey_helper.dart

@@ -8,6 +8,13 @@ import 'package:meta/meta.dart';
 /// @author Pierre HUBERT
 
 class SurveyHelper {
+  /// Get information about a single survey
+  static Future<Survey> getSurveyInfo(int postID) async =>
+      apiToSurvey((await APIRequest.withLogin("surveys/get_info")
+              .addInt("postID", postID)
+              .execWithThrow())
+          .getObject());
+
   /// Cancel the response of a user to a survey
   Future<bool> cancelResponse(Survey survey) async {
     return (await APIRequest(

lib/models/post.dart

@@ -34,7 +34,7 @@ class Post implements LikeElement {
   bool userLike;
   final UserAccessLevels access;
   final CommentsList comments;
-  final Survey survey;
+  Survey survey;
 
   Post(
       {@required this.id,

lib/ui/tiles/post_tile.dart

@@ -341,6 +341,7 @@ class _PostTileState extends State<PostTile> {
   Widget _buildPostSurvey() {
     return SurveyWidget(
       survey: widget.post.survey,
+      onUpdated: (s) => setState(() => widget.post.survey = s),
     );
   }
 

lib/ui/widgets/survey_widget.dart

@@ -13,9 +13,14 @@ import 'package:pie_chart/pie_chart.dart';
 
 class SurveyWidget extends StatefulWidget {
   final Survey survey;
+  final Function(Survey) onUpdated;
 
-  const SurveyWidget({Key key, @required this.survey})
+  const SurveyWidget({
-      : assert(survey != null),
+    Key key,
+    @required this.survey,
+    @required this.onUpdated,
+  })  : assert(survey != null),
+        assert(onUpdated != null),
         super(key: key);
 
   @override
@@ -160,6 +165,14 @@ class _SurveyWidgetState extends SafeState<SurveyWidget> {
     });
   }
 
+  /// Reload survey information
+  ///
+  /// Throws in case of failure
+  Future<void> _reloadSurvey() async {
+    final newSurvey = await SurveyHelper.getSurveyInfo(widget.survey.postID);
+    widget.onUpdated(newSurvey);
+  }
+
   /// Create a new choice
   void _createNewChoices() async {
     try {
@@ -176,7 +189,7 @@ class _SurveyWidgetState extends SafeState<SurveyWidget> {
 
       await SurveyHelper.createNewChoice(survey.postID, newChoice);
 
-      // TODO : reload survey
+      await _reloadSurvey();
     } catch (e, s) {
       print("Could not create new survey choice! $e\n$s");
       showSimpleSnack(