working on issue #416

sails/src/assets/scripts/modules/student/controllers/session.js

@@ -30,7 +30,7 @@ dashboardControllers.controller('StudentSessionCtrl', function StudentSessionCtr
     paused: false,
     showSessions: false,
     showLastTry: true,
-    showTries: false,
+    showTries: [],
     tryRunning: false,
     section: 'new'
   };
@@ -65,6 +65,7 @@ dashboardControllers.controller('StudentSessionCtrl', function StudentSessionCtr
       // Add to list
       $scope.wsessions = data;
       $scope.ws_recover = $scope.wsessions[0]!=null && $scope.wsessions[0].end==null;
+      $scope.flags.showTries = Array($scope.wsessions.length).fill(false);
    })
    .error(function(data, status, headers, config) {
    });

sails/src/assets/scripts/modules/student/views/session.html

@@ -194,7 +194,7 @@
 
       <!-- sessions list -->
       <div class="list-group pre-scrollable" ng-show="flags.showSessions && flags.section == 'previous' || flags.showLastTry && wsessions.length > 0 || ws_recover || flags.tryRunning">
-        <div ng-repeat="s in wsessions | orderBy: '-begin'">
+        <div ng-repeat="s in wsessions track by $index | orderBy: '-begin'">
         <!-- div class="list-group-item" ng-repeat="s in wsessions | orderBy: '-begin' | limitTo: numPerPage:(currentPage-1)*numPerPage" -->
 
           <div class="list-group-item" ng-show="flags.section == 'previous' || ws.id==s.id || ws_recover">
@@ -212,8 +212,8 @@
             <!-- show/hide tries button -->
             <div class="form-group pull-right" ng-show="ws.id != s.id && !ws_recover">
               <span class="control-label"> {{ s.tries.length }} {{ 'tries' | translate }}</span>
-              <button ng-click="flags.showTries = !flags.showTries" class="btn btn-default btn-sm">
-                  <div ng-show="!flags.showTries">
+              <button ng-click="flags.showTries[$index] = !flags.showTries[$index]" class="btn btn-default btn-sm">
+                  <div ng-show="!flags.showTries[$index]">
                     {{ 'show' | translate }} <span class="glyphicon glyphicon-collapse-down" aria-hidden="true"></span>
                   </div>
                   <div ng-show="flags.showTries">
@@ -229,7 +229,7 @@
             <button ng-show="ws_recover" class="btn btn-warning btn-sm pull-right" type="button" ng-click="close_ws()" translate>close_session</button>
 
             <!-- tries list -->
-            <div class="sessionTries" ng-show="flags.showTries || ws.id == s.id || ws_recover">
+            <div class="sessionTries" ng-show="flags.showTries[$index] || ws.id == s.id || ws_recover">
               <div class="try" ng-repeat="t in s.tries">
                 <div ng-show="!is_currentOpenTry(t)">
                   <table width="100%">