request)
    {
        //
        $entities = \App\UiTopic::all();

        $data = ['entities' => $entities];

        return view('student/uitasks/index')
            ->with(compact('entities'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return Response
     */
    public function create()
    {
        //
        return view('admin/uitopic/create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @return Response
     */
    public function store(Request $request)
    {
        // SUBMIT TASK PADA student/uitasks/(id)
        $rules = [
            'MainActivity' => 'required'
        ];

        $msg = [
            'MainActivity.required' => 'MainActivity.xml must not empty'
        ];

        $validator = Validator::make($request->all(), $rules, $msg);

        //jika data ada yang kosong
        if ($validator->fails()) {

            //refresh halaman
            return Redirect::to('student/uitasks/' . $request->get('id'))
                ->withErrors($validator);
        } else {
            $codebox = array();
            $codebox[0] = $request->get('MainActivity');
            $codebox[1] = $request->get('Color');
            $codebox[2] = $request->get('String');

            // save data to uistudent_submits
            $this->insertUiStudentSubmits($request->get('id'));
            $this->insertUiCodeResults($codebox, $request);

            //jika berhasil lempar pesan ini
            Session::flash('message', 'Task were successfully submitted');

            //dialihkan ke .../student/uitasks/(id)
            return Redirect::to('student/uitasks/' . $request->get('id'));
        }
    }

    public function insertUiStudentSubmits($topicid)
    {
        # code...
        $entity = new \App\UiStudentSubmits;

        $entity->userid = Auth::user()->id;
        $entity->uitopic = $topicid;
        $entity->checkresult = "-";
        $entity->save();
    }

    public function insertUiCodeResults($codebox, $request)
    {
        $i = 1;

        foreach ($codebox as $textareas) {
            # code...
            $entity = new \App\UiCodeResults;

            // filter data for uisubmitid column (based userid & uitopic)
            $uisubmitid_filter = \App\UiStudentSubmits::where('userid', '=', Auth::user()->id)
                ->where('uitopic', '=', $request->get('id'))
                ->orderBy('id', 'desc')
                ->take(1)
                ->get();

            foreach ($uisubmitid_filter as $filter) {
                # code...
                $uisubmitid_id = $filter['id'];
            }

            // create file with random name (using uuid()) for codefile column
            $filename = Str::uuid();
            File::put(public_path('/storage/uiresource/' . $filename . '.txt'), $textareas);
            $file_path = ('uiresource/' . $filename . '.txt');

            $entity->userid = Auth::user()->id;
            $entity->uisubmitid = $uisubmitid_id;
            $entity->uicodeid = $i;
            $entity->codefile = $file_path;
            $entity->save();
            $i++;
        }
    }

    private function getDataShow($student, $id)
    {
        $entities = \App\StudentValidation::where('student_validations.userid', '=', $student)
            ->select(
                'tasks.taskno',
                'tasks.desc',
                'test_files.fileName',
                'student_validations.status',
                'student_validations.report',
                'student_validations.created_at',
                'student_validations.duration'
            )
            ->join(
                'test_files',
                function ($join) {
                    $join->on('student_validations.testid', '=', 'test_files.id');
                }
            )
            ->join(
                'tasks',
                function ($join) {
                    $join->on('tasks.id', '=', 'test_files.taskid');
                }
            )
            ->where('tasks.topic', '=', $id)
            ->orderBy('tasks.taskno', 'asc')
            ->orderBy('test_files.fileName', 'asc')
            ->get();

        return $entities;
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return Response
     */
    public function show($id)
    {
        $entity = \App\UiTopic::find($id);
        $maxId = DB::table('uitopics')->max('id');
        $idUser = Auth::user()->id;

        $submitDataStatus = \App\StudentSubmit::where('student_submits.userid', '=', $idUser)
            ->select(
                'uitopics.id',
                'uitopics.name',
                'student_submits.checkstat',
                'student_submits.checkresult'
            )
            ->join('uitopics', 'uitopics.id', '=', 'student_submits.topic')
            ->where('uitopics.id', '=', $id)
            ->get();

        // $submitDataStatus = $this->getDataShow($idUser, $id);

        // ambil data student submit
        $studentSubmit = \App\StudentSubmit::where('userid', '=', $idUser)
            ->where('topic', '=', $id)
            ->orderBy('created_at')
            ->take(1)
            ->get();

        $x = ['data' => $entity, 'maxid' => $maxId, 'entities' => $submitDataStatus, 'stdSubmit' => $studentSubmit];

        return view('student/uitasks/show')->with($x);
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return Response
     */
    public function edit($id)
    {
        //
        $entity = \App\UiTopic::find($id);
        $x = ['uitopic' => $entity];
        return view('admin/uitopic/edit')->with($x);
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  int  $id
     * @return Response
     */
    public function update(Request $request, $id)
    {
        //
        $rules = [
            'name' => 'required',
            'stage' => 'required'
        ];

        $msg = [
            'name.required' => 'Topic name must not empty',
            'stage.required' => 'Learning stage must not empty'
        ];


        $validator = Validator::make($request->all(), $rules, $msg);

        if ($validator->fails()) {
            return Redirect::to('admin/uitopic/' . $id . '/edit')
                ->withErrors($validator);
        } else {
            $entity = \App\UiTopic::find($id);

            $entity->name = $request->get('name');
            $entity->stage = $request->get('stage');
            $entity->desc = $request->get('desc');
            $entity->packname = $request->get('packname');
            $entity->projectpath = $request->get('projectpath');
            $entity->save();

            Session::flash('message', 'Topic with Id=' . $id . ' is changed');
            return Redirect::to('admin/uitopic');
        }
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return Response
     */
    public function destroy($id)
    {
        //
        $entity = \App\UiTopic::find($id);
        $entity->delete();
        Session::flash('message', 'Topic with Id=' . $id . ' is deleted');
        return Redirect::to('admin/uitopic');
    }
}