public function markahPost(Request $request)
 {
     $request->all();
     // Validation
     $validation = Validator::make($request->all(), ['position' => 'required|min:5', 'mark' => 'required|numeric']);
     if ($validation->fails()) {
         Session::flash('error', 'Ralat. Sila isikan input dengan format yang betul.');
         return redirect()->back();
     }
     $markah = new Markah();
     $markah->position = ucwords($request->get('position'));
     $markah->mark = $request->get('mark');
     if ($markah->save()) {
         Session::flash('success', 'Berjaya. Markah berjaya direkod.');
     }
     return redirect()->back();
 }
 public function indexPost(Request $request)
 {
     $validation = Validator::make($request->all(), ['position' => 'required|min:5', 'mark' => 'required|numeric']);
     if ($validation->fails()) {
         Session::flash('error', 'Gagal. Permarkahan gagal direkodkan.');
         return redirect()->back();
     }
     // check redundunt position
     $markah = Markah::where('position', strtoupper($request->get('position')))->get();
     if (!$markah->isEmpty()) {
         Session::flash('error', 'Gagal. Jawatan tersebut telah wujud.');
         return redirect()->back();
     }
     $markah = new Markah();
     $markah->position = strtoupper($request->get('position'));
     $markah->mark = $request->get('mark');
     $markah->ppk_id = Auth::user()->ppk_id;
     if ($markah->save()) {
         Session::flash('success', 'Permarkahan berjaya direkod.');
     }
     return redirect()->back();
 }