From 81b900ae0541d35a17f9b77dcc04a812f45ee9f4 Mon Sep 17 00:00:00 2001
From: Christian <christian1827@gmail.com>
Date: Fri, 24 Sep 2021 00:58:05 -0500
Subject: [PATCH] Forum: Fix filter by language - refs BT#19044

---
 public/main/forum/index.php                       | 12 ++++++++----
 public/main/template/default/forum/list.html.twig |  4 ++++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/public/main/forum/index.php b/public/main/forum/index.php
index 6a2830d619..8c7ec31f73 100644
--- a/public/main/forum/index.php
+++ b/public/main/forum/index.php
@@ -245,9 +245,10 @@ if (!empty($allCourseForums)) {
 $actions = Display::toolbarAction('toolbar-forum', [$actionLeft]);
 
 $languages = api_get_language_list_for_flag();
-$defaultUserLanguage = 'en';
+$defaultUserLanguage = 'english';
 if (null !== $user) {
-    $defaultUserLanguage = $user->getLocale();
+    $langInfo = api_get_language_from_iso($user->getLocale());
+    $defaultUserLanguage = $langInfo->getEnglishName();
 }
 
 $extraFieldValues = new ExtraFieldValue('user');
@@ -259,7 +260,7 @@ if ($value && isset($value['value']) && !empty($value['value'])) {
 
 // Create a search-box
 $searchFilter = '';
-$translate = api_get_configuration_value('translate_html');
+$translate = 'true' === api_get_setting('editor.translate_html');
 if ($translate) {
     $form = new FormValidator('search_simple', 'get', api_get_self().'?'.api_get_cidreq(), null, null, 'inline');
     $form->addHidden('cid', api_get_course_int_id());
@@ -281,7 +282,7 @@ if ($translate) {
         [],
         true //$addEmptyOptionSelects = false,
     );
-    $form->setDefaults(['extra_language' => $defaultUserLanguage]);
+    $form->setDefault('extra_language', $defaultUserLanguage);
 
     $searchFilter = $form->returnForm();
 }
@@ -596,6 +597,9 @@ if (is_array($forumCategories)) {
             $forumCategoryInfo['forums'] = $forumsDetailsList;
         }
 
+        // It set the languages by category
+        $extraFieldValue = new ExtraFieldValue('forum_category');
+        $forumCategoryInfo['extra_fields'] = $extraFieldValue->getAllValuesByItem($categoryId);
         // Don't show empty categories (for students)
         if (!api_is_allowed_to_edit()) {
             if (empty($forumCategoryInfo['forums'])) {
diff --git a/public/main/template/default/forum/list.html.twig b/public/main/template/default/forum/list.html.twig
index 1b5aa6b3eb..d549ee8937 100644
--- a/public/main/template/default/forum/list.html.twig
+++ b/public/main/template/default/forum/list.html.twig
@@ -58,7 +58,9 @@
                 {% set panel_title %}
                     {{ item.title }}{{ item.icon_session }}
                     {% for category_language_item in category_language_array %}
+                        {% if languages[category_language_item | lower] is defined %}
                         <span class="flag-icon flag-icon-{{ languages[category_language_item | lower] }}"></span>
+                        {% endif %}
                     {% endfor %}
                 {% endset %}
             {% else %}
@@ -68,7 +70,9 @@
                         {{ item.title }}{{ item.icon_session }}
                     </a>
                     {% for category_language_item in category_language_array %}
+                        {% if languages[category_language_item | lower] is defined %}
                         <span class="flag-icon flag-icon-{{ languages[category_language_item | lower] }}"></span>
+                        {% endif %}
                     {% endfor %}
                     <div class="pull-right">
                         {{ item.tools  }}