I have a distance education site developed with Laravel. It gives an error when filtering some pages. For example, when you click Library -> Homework Library on the student screen, the page opens. However, when I filter Select teacher on the page, it gives an error. Error code "ErrorException Undefined variable: videos ". Controller page is attached. I will be glad if you can help. Displays first error in line 49
<?php
namespace App\Http\Controllers;
use App\Classes;
use App\Gains;
use App\SylllabussFiles;
use App\Task;
use App\TaskFiles;
use App\User;
use Illuminate\Http\Request;
use App\Lesson;
class LessonController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index(Request $request)
{
if($request->get('name')!=''){
$lessons = New Lesson;
if($request->get('name')!=''){
$lessons = $lessons->where('name','LIKE','%'.$request->get('name').'%');
}
$lessons=$lessons->get();
}else{
$lessons = Lesson::orderBy('name', 'asc')->paginate(25);
}
$lessoncount=$lessons->count();
return view('lesson.index', compact(['lessons','lessoncount']));
}
public function library(Request $request)
{
if($request->get('type')==1){
$videos = New SylllabussFiles;
}elseif($request->get('type')==2){
$videos = New TaskFiles;
}
if ($request->get('date') != '' || $request->get('lesson_id') != '' || $request->get('classes_id') != ''|| $request->get('teacher_id') != '') {
if ($request->get('date') != '') {
$videos = $videos->where('start_date', 'LIKE', '%' . $request->get('date') . '%');
}
if ($request->get('teacher_id') != '') {
$videos = $videos->where('teacher_id', $request->get('teacher_id'));
}
$videos = $videos->get();
} else {
if($request->get('type')==1){
$videos =SylllabussFiles::orderBy('id', 'desc')->get();
}elseif($request->get('type')==2) {
$videos = TaskFiles::orderBy('id', 'desc')->get();
}
}
$lessoncount=$videos->count();
$teacher = User::where('type', 1)->orderBy('name', 'asc')->pluck('name', 'id');
return view('lesson.library', compact(['videos','lessoncount','teacher']));
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
return view('lesson.create');
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$create = Lesson::create($request->all());
if ($create) {
notify()->success('İşleminiz başarıyla gerçekleşti','Kayıt Başarılı');
return redirect()->route('lesson.index');
} else {
notify()->error('Maalesef Hata Oluştu','Kayıt Başarısız');
return redirect()->back();
}
}
/**
* Display the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function show($id)
{
return view('lesson.import');
}
/**
* Show the form for editing the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function edit($id)
{
$lesson = Lesson::find($id);
return view('lesson.edit', compact(['lesson']));
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param int $id
* @return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
$update = Lesson::find($id)->update($request->all());
if ($update) {
notify()->success('İşleminiz başarıyla gerçekleşti','Kayıt Düzenlendi');
return redirect()->route('lesson.index');
} else {
notify()->error('Maalesef Hata Oluştu','Düzenleme Başarısız');
return redirect()->back();
}
}
/**
* Remove the specified resource from storage.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function destroy($id)
{
$delete = Lesson::find($id)->delete();
if ($delete) {
notify()->success('İşleminiz başarıyla gerçekleşti','Kayıt Silindi');
} else {
notify()->error('Maalesef Hata Oluştu','Silme Başarısız');
}
return redirect()->route('lesson.index');
}
function getIdByPoints(Request $request){
$id=$request->get("id");
$names = Lesson::where('id',$id)->first();
return $names->point;
}
}
