Show announcement details - refs #7539

main/inc/lib/system_announcements.lib.php

@@ -708,4 +708,55 @@ class SystemAnnouncementManager
 
         return $template->fetch('default/announcement/slider.tpl');
 	}
+
+    /**
+     * Get the HTML code for an announcement
+     * @param int $announcementId The announcement ID
+     * @param int $visibility The announcement visibility
+     * @return string The HTML code
+     */
+    public static function displayAnnouncement($announcementId, $visibility)
+    {
+        $selectedUserLanguage = Database::escape_string(api_get_interface_language());
+        $announcementTable = Database :: get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS);
+
+        $now = api_get_utc_datetime();
+
+        $whereConditions = [
+            "(lang = ? OR lang IS NULL) " => $selectedUserLanguage,
+            "AND (? >= date_start AND ? <= date_end) " => [$now, $now],
+            "AND id = ? " => intval($announcementId)
+        ];
+
+        switch ($visibility) {
+            case self::VISIBLE_GUEST :
+                $whereConditions["AND visible_guest = ? "] = 1;
+                break;
+            case self::VISIBLE_STUDENT :
+                $whereConditions["AND visible_student = ? "] = 1;
+                break;
+            case self::VISIBLE_TEACHER :
+                $whereConditions["AND visible_teacher = ? "] = 1;
+                break;
+        }
+
+        if (api_is_multiple_url_enabled()) {
+            $whereConditions["AND access_url_id IN (1, ?) "] = api_get_current_access_url_id();
+        }
+
+        $announcement = Database::select(
+            "*",
+            $announcementTable,
+            [
+                "where" => $whereConditions,
+                "order" => "date_start"
+            ], 'first'
+        );
+
+        $template = new Template(null, false, false);
+        $template->assign('announcement', $announcement);
+
+        return $template->fetch('default/announcement/view.tpl');
+    }
+
 }

main/template/default/announcement/view.tpl

@@ -0,0 +1,8 @@
+<h2 class="page-header">{{ "SystemAnnouncements" | get_lang }}</h2>
+
+<article id="announcement-{{ announcement.id }}}">
+    <header class="page-header">
+        <h3>{{ announcement.title }}</h3>
+        {{ announcement.content }}
+    </header>
+</article>

news_list.php

@@ -18,7 +18,12 @@ if (api_is_anonymous()) {
 } else {
     $visibility = api_is_allowed_to_create_course() ? SystemAnnouncementManager::VISIBLE_TEACHER : SystemAnnouncementManager::VISIBLE_STUDENT;
 }
-$content =  SystemAnnouncementManager ::display_announcements_slider($visibility, $_GET['id']);
+
+if (!isset($_GET['id']) || empty($_GET['id'])) {
+    $content =  SystemAnnouncementManager::display_announcements_slider($visibility, $_GET['id']);
+} else {
+    $content = SystemAnnouncementManager::displayAnnouncement($_GET['id'], $visibility);
+}
 
 $tpl = new Template($tool_name);
 $tpl->assign('actions', $actions);