Unsubscribe buttons on page "My courses" - refs BT#17176

main/inc/lib/course.lib.php

@@ -3933,7 +3933,7 @@ class CourseManager
             'not_category' => [],
         ];
         $collapsable = api_get_configuration_value('allow_user_course_category_collapsable');
-        $stok = Security::get_token();
+        $stok = Security::get_existing_token();
         while ($row = Database::fetch_array($result)) {
             // We simply display the title of the category.
             $courseInCategory = self::returnCoursesCategories(
@@ -4183,6 +4183,15 @@ class CourseManager
             $params['extrafields'] = CourseManager::getExtraFieldsToBePresented($course_info['real_id']);
             $params['real_id'] = $course_info['real_id'];
 
+            if ('1' === $course_info['unsubscribe']) {
+                $params['unregister_button'] = CoursesAndSessionsCatalog::return_unregister_button(
+                    $course_info,
+                    Security::get_existing_token(),
+                    '',
+                    ''
+                );
+            }
+
             if ($course_info['visibility'] != COURSE_VISIBILITY_CLOSED) {
                 $params['notifications'] = $showNotification;
             }

main/inc/lib/usermanager.lib.php

@@ -3826,7 +3826,8 @@ class UserManager
                     c.visibility,
                     c.id as real_id,
                     c.code as course_code,
-                    sc.position
+                    sc.position,
+                    c.unsubscribe
                 FROM $tbl_session_course_user as scu
                 INNER JOIN $tbl_session_course sc
                 ON (scu.session_id = sc.session_id AND scu.c_id = sc.c_id)
@@ -3862,7 +3863,8 @@ class UserManager
                         c.visibility,
                         c.id as real_id,
                         c.code as course_code,
-                        sc.position
+                        sc.position,
+                        c.unsubscribe
                     FROM $tbl_session_course_user as scu
                     INNER JOIN $tbl_session as s
                     ON (scu.session_id = s.id)

main/inc/lib/userportal.lib.php

@@ -1920,6 +1920,16 @@ class IndexManager
 
                                             $course_session['extrafields'] = CourseManager::getExtraFieldsToBePresented($course['real_id']);
 
+                                            if ('1' === $course['unsubscribe']) {
+                                                $course_session['unregister_button'] =
+                                                    CoursesAndSessionsCatalog::return_unregister_button(
+                                                        ['code' => $course['course_code']],
+                                                        Security::get_existing_token(),
+                                                        '',
+                                                        ''
+                                                    );
+                                            }
+
                                             $html_courses_session[] = $course_session;
                                         }
                                     }

main/template/default/user_portal/classic_courses_without_category.tpl

@@ -26,8 +26,9 @@
                         {% endif %}
                     </div>
                     <div class="col-md-10">
-                        {% if item.edit_actions != '' %}
+                        {% if item.edit_actions != '' or item.unregister_button %}
                             <div class="pull-right">
+                                {{ item.unregister_button }}
                                 {% if item.document == '' %}
                                     <a class="btn btn-default btn-sm" href="{{ item.edit_actions }}">
                                         <i class="fa fa-pencil" aria-hidden="true"></i>

main/template/default/user_portal/classic_session.tpl

@@ -97,6 +97,9 @@
                                         </a>
                                     </div>
                                     <div class="col-md-10">
+                                        <div class="pull-right">
+                                            {{ item.unregister_button }}
+                                        </div>
                                         {% if item.requirements %}
                                             <h4>{{ item.name }}</h4>
                                         {% else %}

user_portal.php

@@ -45,16 +45,15 @@ Event::registerLog($logInfo);
 
 $userId = api_get_user_id();
 
-$collapsable = api_get_configuration_value('allow_user_session_collapsable');
-if ($collapsable) {
-    $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : '';
-    $sessionId = isset($_REQUEST['session_id']) ? $_REQUEST['session_id'] : '';
-    $value = isset($_REQUEST['value']) ? (int) $_REQUEST['value'] : '';
-    switch ($action) {
+if (array_key_exists('action', $_REQUEST)) {
+    switch ($_REQUEST['action']) {
         case 'collapse_session':
-            if (!empty($sessionId)) {
-                $userRelSession = SessionManager::getUserSession($userId, $sessionId);
+            if (api_get_configuration_value('allow_user_session_collapsable')
+                && array_key_exists('session_id', $_REQUEST)
+            ) {
+                $userRelSession = SessionManager::getUserSession($userId, $_REQUEST['session_id']);
                 if ($userRelSession) {
+                    $value = isset($_REQUEST['value']) ? (int)$_REQUEST['value'] : '';
                     $table = Database::get_main_table(TABLE_MAIN_SESSION_USER);
                     $sql = "UPDATE $table SET collapsed = $value WHERE id = ".$userRelSession['id'];
                     Database::query($sql);
@@ -64,6 +63,16 @@ if ($collapsable) {
                 exit;
             }
             break;
+        case 'unsubscribe':
+            if (\Security::check_token('get')) {
+                $auth = new Auth();
+                if ($auth->remove_user_from_course($_GET['course_code'])) {
+                    Display::addFlash(Display::return_message(get_lang('YouAreNowUnsubscribed')));
+                }
+                header('Location: user_portal.php');
+                exit;
+            }
+            break;
     }
 }