Course: switch to LOM API

components/ILIAS/Course/classes/class.ilCourseContentGUI.php

@@ -22,6 +22,7 @@
 use ILIAS\Refinery\Factory;
 use ILIAS\UI\Factory as UIFactory;
 use ILIAS\UI\Renderer as UIRenderer;
+use ILIAS\MetaData\Services\ServicesInterface as LOMServices;
 
 /**
  * Class ilCourseContentGUI
@@ -50,6 +51,7 @@ class ilCourseContentGUI
     protected Factory $refinery;
     protected UIFactory $ui_factory;
     protected UIRenderer $ui_renderer;
+    protected LOMServices $lom_services;
 
     public function __construct(ilContainerGUI $container_gui_obj)
     {
@@ -70,6 +72,7 @@ public function __construct(ilContainerGUI $container_gui_obj)
         $this->refinery = $DIC->refinery();
         $this->ui_factory = $DIC->ui()->factory();
         $this->ui_renderer = $DIC->ui()->renderer();
+        $this->lom_services = $DIC->learningObjectMetadata();
 
         $this->container_gui = $container_gui_obj;
         $this->container_obj = $this->container_gui->getObject();
@@ -411,7 +414,15 @@ public function __renderUserItem(array $item, int $level): void
             $this->tpl->setVariable("DESC", $item['description']);
             $this->tpl->parseCurrentBlock();
         }
-        if ($tlt = ilMDEducational::_getTypicalLearningTimeSeconds($item['obj_id'])) {
+
+        $tlt_data = $this->lom_services->read(
+            ilObject::_lookupObjId($item['ref_id']),
+            0,
+            $item['type'],
+            $this->lom_services->paths()->firstTypicalLearningTime()
+        )->firstData($this->lom_services->paths()->firstTypicalLearningTime());
+
+        if ($tlt = $this->lom_services->dataHelper()->durationToSeconds($tlt_data->value())) {
             $this->tpl->setCurrentBlock("tlt");
             $this->tpl->setVariable("TXT_TLT", $this->lng->txt('meta_typical_learning_time'));
             $this->tpl->setVariable("TLT_VAL", ilDatePresentation::secondsToString($tlt));

components/ILIAS/Course/classes/class.ilECSCourseSettings.php

@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=0);
-
 /**
  * This file is part of ILIAS, a powerful learning management system
  * published by ILIAS open source e-Learning e.V.
@@ -18,6 +16,10 @@
  *
  *********************************************************************/
 
+declare(strict_types=0);
+
+use ILIAS\MetaData\Services\ServicesInterface as LOMServices;
+
 /**
  * Class ilECSCourseSettings
  * @author  Stefan Meyer <[email protected]>
@@ -26,6 +28,7 @@
 class ilECSCourseSettings extends ilECSObjectSettings
 {
     protected ilLogger $logger;
+    protected LOMServices $lom_services;
 
     public function __construct(ilObject $a_content_object)
     {
@@ -45,11 +48,13 @@ protected function buildJson(ilECSSetting $a_server)
         $json = $this->getJsonCore('application/ecs-course');
 
         // meta language
-        $lang = ilMDLanguage::_lookupFirstLanguage(
+        $lang = $this->lom_services->read(
             $this->content_obj->getId(),
             $this->content_obj->getId(),
-            $this->content_obj->getType()
-        );
+            $this->content_obj->getType(),
+            $this->lom_services->paths()->languages()
+        )->firstData($this->lom_services->paths()->languages())->value();
+
         if (strlen($lang) !== 0) {
             $json->lang = $lang . '_' . strtoupper($lang);
         }

components/ILIAS/Course/classes/class.ilObjCourseGUI.php

@@ -120,9 +120,6 @@ public function viewObject(): void
             return;
         }
 
-        // Fill meta header tags
-        ilMDUtils::_fillHTMLMetaTags($this->object->getId(), $this->object->getId(), 'crs');
-
         // Trac access
         if ($this->ctrl->getNextClass() != "ilcolumngui") {
             ilLearningProgress::_tracProgress(
@@ -203,9 +200,6 @@ public function infoScreen(): void
             $this->checkPermission('visible');
         }
 
-        // Fill meta header tags
-        ilMDUtils::_fillHTMLMetaTags($this->object->getId(), $this->object->getId(), 'crs');
-
         $this->tabs_gui->setTabActive('info_short');
         $files = ilCourseFile::_readFilesByCourse($this->object->getId());