Issue #2986351 by tamnv: Add active class for useful rating for styling

Closes #2986351

js/useful.js

@@ -23,6 +23,9 @@
               .find('.useful-rating a')
               .eq(0)
               .each(function () {
+                if ($select.attr('data-vote-value') == -1) {
+                  $(this).addClass('active');
+                }
                 $(this).on('click', function (e) {
                   if (isPreview) {
                     return;
@@ -38,6 +41,9 @@
               .find('.useful-rating a')
               .eq(1)
               .each(function () {
+                if ($select.attr('data-vote-value') == 1) {
+                  $(this).addClass('active');
+                }
                 $(this).on('click', function (e) {
                   if (isPreview) {
                     return;