Info and filtering by course tracks, table of content on chapter view with links and previous and next buttons.

app/Http/Controllers/Index.php

@@ -9,9 +9,9 @@ use Illuminate\Http\Request;
 
 class Index extends Controller
 {
-    public function index()
+    public function index(string $track = null)
     {
-        $courses = Course::with('chapters')->withCount('chapters')->get();
+        $courses = Course::where('tracks', 'like', '%'.$track.'%')->with('chapters')->withCount('chapters')->get();
 
         return view('index', compact(['courses']));
     }

app/Http/SymfonyCastDl/HtmlParser.php

@@ -28,6 +28,7 @@ class HtmlParser
             $course->thumbnail = $courseItem->first('img.course-list-item-img')->attr('src');
             $course->link = last(explode('/', $courseItem->first('a')->attr('href')));
             $course->status = $courseItem->attr('data-status');
+            $course->tracks = $courseItem->attr('data-tracks');
             $course->course_id = $courseItem->attr('data-id');
             $course->numberofchapters = $courseItem->attr('data-chapter-count');
             $course->timeswatched = $courseItem->attr('data-times-watched');