exam add duration

app/Http/Controllers/ExamController.php

@@ -44,6 +44,7 @@ class ExamController extends Controller
             'name' => 'required|string',
             'indexes' => 'required|array|min:1',
             'status' => 'required|in:0,1',
+            'duration' => 'numeric'
         ];
         $request->validate($rules);
         $result = $this->repository->store($request->all());

app/Http/Resources/ExamResource.php

@@ -23,6 +23,8 @@ class ExamResource extends JsonResource
             'description' => $this->description,
             'begin' => $this->begin,
             'end' => $this->end,
+            'duration' => $this->duration,
+            'duration_text' => $this->duration_text,
             'filters' => $this->filters,
             'filters_formatted' => $this->formatFilters($this->resource),
             'indexes' => $this->indexes,