public function update(Request $request)
{
$post = $request->all();
$validator = exam::validateUpdateData($post);
if ($validator->fails()) {
return redirect()->back()->withErrors($validator->errors());
} else {
unset($post['_token']);
$result = exam::where('id', $post['id'])->update($post);
Flash::success('Exam successfully Updated');
}
return redirect('manageexam');
}
public function saveanswer(Request $request)
{
$input = $request->except('_token');
if (empty($input['useranswer'])) {
// If user not given particular question answer than set boolean value 0
$ans_yes_not = "0";
$useranswer = "null";
} else {
if (!empty($input['useranswer'])) {
// If user not given particular question naswer than set boolean value 1
$ans_yes_not = "1";
$useranswer = $input['useranswer'];
}
}
// This condition is run when user click on Finish Exam button
if (isset($_POST['finishexam'])) {
$data = new user_ans_log();
$data->user_id = \Auth::id();
$data->exam_id = $request->examid;
$data->que_id = $request->questionid;
$data->answer = $ans_yes_not;
$data->user_answer = $useranswer;
$data->exam_date = date("Y/m/d");
$exam_id = $request->examid;
$user_id = \Auth::id();
//
// This query will find out how many questions answer given by users.
$data = user_ans_log::where('user_id', $user_id)->where('exam_id', $exam_id)->get();
foreach ($data as $val) {
$user_answer[] = $val->user_answer;
}
// This query will find out the correct answer set by the examiner
$data1 = question::where('exam_id', $exam_id)->get();
$check_question_answer = count($data1);
foreach ($data1 as $val) {
$correct_answer[] = $val->correct_ans;
}
// This query will findout how many mark specify per question
$perquestion_mark = exam::where('id', $exam_id)->get();
// Here check the total number of correct answer given by the user
for ($i = 0; $i < $check_question_answer; $i++) {
if ($user_answer[$i] == $correct_answer[$i]) {
$count[] = $i;
}
}
$marks = count($count) * $perquestion_mark[0]['mark_per_que'];
$passing_mark = $perquestion_mark[0]['passing_marks'];
$total_marks = $perquestion_mark[0]['total_question'] * $perquestion_mark[0]['mark_per_que'];
$result = exam::where('id', $exam_id)->get();
return view('user.showresult', compact('result'))->with('examdate', date("d/m/Y"))->with('marks', $marks)->with('passing_mark', $passing_mark)->with('total_marks', $total_marks);
}
$data = new user_ans_log();
$data->user_id = \Auth::id();
$data->exam_id = $request->examid;
$data->que_id = $request->questionid;
$data->answer = $ans_yes_not;
$data->user_answer = $useranswer;
$data->exam_date = date("Y/m/d");
$data->save();
$total_size = count(session()->get('id'));
$arr[] = session()->get('id');
if ($total_size > 1) {
if ($request->session()->has('abc')) {
if (session()->get('abc') < $total_size) {
$nextquestionid = session()->get('abc');
$result = question::where('id', $nextquestionid)->get();
session(['abc' => $nextquestionid + 1]);
return view('user.displayexam', compact('result'));
} else {
$lastquestionid = session()->get('abc');
$result = question::where('id', $lastquestionid)->get();
session()->forget('abc');
session()->forget('current_questionid');
return view('user.displayexam', compact('result'))->with('lastquestionid', $lastquestionid);
}
} else {
if (!$request->session()->has('abc')) {
session(['current_questionid' => $arr[0][0]]);
$nextquestionid = session()->get('current_questionid') + 1;
session(['current_questionid' => $nextquestionid]);
$result = question::where('id', $nextquestionid)->get();
session(['abc' => session()->get('current_questionid') + 1]);
return view('user.displayexam', compact('result'));
}
}
}
}
public function create($id)
{
$result = exam::where('id', $id)->first();
$result1 = question::where('exam_id', $id)->count();
return view('admin.add_question_exam')->with('result', $result)->with('result1', $result1);
}
