public function index($exam_id)
{
$exam = Exam::with('subject')->findOrFail($exam_id);
$exam_questions = ExamQuestion::with(['question' => function ($query) {
$query->orderByRaw("case\n when questionbank_questions.type = 'true_false' then 'a'\n when questionbank_questions.type = 'single_choice' then 'b'\n when questionbank_questions.type = 'multiple_choice' then 'c'\n when questionbank_questions.type = 'essay' then 'd'\n end ASC");
}])->select('era.id as has_been_corrected', 'exam_questions.exam_id', 'exam_questions.question_id', 'exam_questions.devide_grade')->has('question')->join('exams as e', 'e.id', '=', 'exam_questions.exam_id')->leftJoin('exam_results as er', 'er.exam_id', '=', 'e.id')->leftJoin('exam_result_answers as era', 'era.exam_result_id', '=', 'er.id')->where('exam_questions.exam_id', $exam->id)->groupBy('exam_questions.id')->get();
$list_questions = Question::select('questionbank_questions.*')->selectRaw('CONCAT((
CASE questionbank_questions.type
WHEN "essay" THEN "مقالي"
WHEN "true_false" THEN "صح أو خطأ"
WHEN "single_choice" THEN "إختياري إجابة واحدة"
WHEN "multiple_choice" THEN "إختياري متعدد"
WHEN "essay" THEN "مقالي"
END), " --- ", questionbank_questions.question) as full_question')->join('subject_lessons as sl', 'sl.id', '=', 'questionbank_questions.lesson_id')->join('subject_subjects as ss', function ($join) use($exam) {
$join->on('ss.id', '=', 'sl.subject_subject_id')->where('ss.id', '=', $exam->subject_id);
})->groupBy('questionbank_questions.id')->whereNotIn('questionbank_questions.id', $exam_questions->pluck('question_id'))->pluck('full_question', 'id')->toArray();
return view('exams::questions.index', compact('exam_questions', 'list_questions', 'exam'));
}
public function subjectexam(Request $request)
{
$subjects = Subject::lists('name', 'id')->toArray();
$semesters = Semester::select(\DB::raw('CONCAT(academycycle_semesters.name , "-", academycycle_years.name) as name , academycycle_semesters.id as id'))->join('academycycle_years', 'academycycle_years.id', '=', 'academycycle_semesters.academycycle_year_id')->pluck('name', 'id')->toArray();
$year_term = Year::join('academystructure_terms', 'academystructure_years.id', '=', 'academystructure_terms.year_id')->join('academystructure_departments', 'academystructure_terms.id', '=', 'academystructure_departments.term_id')->select(\DB::raw('CONCAT(academystructure_years.name, "-", academystructure_terms.name) as name,
GROUP_CONCAT(DISTINCT(academystructure_departments.subject_ids)) as sid'))->groupBy('academystructure_terms.name', 'academystructure_years.name')->get()->toArray();
$year_term_options;
foreach ($year_term as $key => &$aa) {
$a = implode(',', array_unique(array_merge(json_decode(str_replace('],[', ',', $aa['sid']), TRUE))));
$year_term_options[$a] = $aa['name'];
}
$spec_id = Specialty::join('academystructure_departments', 'academystructure_departments.spec_id', '=', 'academystructure_specialties.id')->select(\DB::raw('academystructure_specialties.name as name,
GROUP_CONCAT(DISTINCT(academystructure_departments.id)) as sid'))->groupBy('academystructure_departments.spec_id')->pluck('name', 'sid')->toArray();
$types = config('exams.types');
$filter_semester_id = 0;
if (request('exam_semester')) {
$filter_semester_id = request('exam_semester');
} else {
$filter_semester_id = semester()->id;
}
if (request('spec_id')) {
$search_spec_id = explode(',', request('spec_id'));
$statistics = Exam::with(['subject', 'results' => function ($q) use($search_spec_id) {
$q->whereHas('student', function ($query) use($search_spec_id) {
$query->whereIn('students.academystructure_department_id', $search_spec_id);
});
}])->where('active', 1)->where('semester_id', $filter_semester_id)->where('finish_at', '=<', date("Y/m/d H:i:s"));
$subject_students = Subject::select('id')->withCount(['students' => function ($q) use($filter_semester_id, $search_spec_id) {
$q->where('semester_id', $filter_semester_id);
$q->where('students.state', 'active');
$q->where('student_subjects.state', 'study');
$q->whereIn('students.academystructure_department_id', $search_spec_id);
}])->pluck('students_count', 'id')->toArray();
} else {
$statistics = Exam::with(['subject', 'results'])->where('active', 1)->where('semester_id', $filter_semester_id)->where('finish_at', '<', date("Y/m/d H:i:s"));
$subject_students = Subject::select('id')->withCount(['students' => function ($q) use($filter_semester_id) {
$q->where('semester_id', $filter_semester_id);
$q->where('students.state', 'active');
$q->where('student_subjects.state', 'study');
}])->pluck('students_count', 'id')->toArray();
}
if (request('exam_year_term')) {
$statistics->whereIn('subject_id', explode(',', request('exam_year_term')));
}
if (request('exam_subject')) {
$statistics->where('subject_id', request('exam_subject'));
}
if (request('exam_type')) {
$statistics->where('type', request('exam_type'));
}
$statistics = $statistics->get();
return view('exams::reports.subjectexam', compact('subjects', 'semesters', 'year_term_options', 'types', 'statistics', 'subject_students', 'spec_id'));
}
/**
* Execute the console command.
*
* @return mixed
*/
public function handle()
{
$semester_id = semester()->id;
$results = ExamResult::leftJoin('exam_result_answers as era', 'era.exam_result_id', '=', 'exam_results.id')->select('exam_results.id', 'exam_results.student_id', 'exam_results.filename')->where('exam_results.filename', '!=', '')->where('exam_results.semester_id', $semester_id)->whereNull('era.id')->groupBy('exam_results.id')->get();
// $semester_id = semester()->id;
if (!$results->count()) {
$this->comment(PHP_EOL . 'All is corrected' . PHP_EOL);
}
$this->comment(PHP_EOL . 'Starting Correcting ' . $results->count() . '....' . PHP_EOL);
foreach ($results as $result) {
// $this->comment(PHP_EOL.'C'.PHP_EOL);
try {
$file = File::get('/var/www/node/rest/exams/' . $result->filename);
} catch (\Illuminate\Contracts\Filesystem\FileNotFoundException $e) {
$this->comment(PHP_EOL . 'No Answers File Provided' . PHP_EOL);
continue;
}
$exam_file = json_decode($file);
if (empty($exam_file->exam_id)) {
$error = 1;
$this->comment(PHP_EOL . 'Wrong file no exam_id' . PHP_EOL);
continue;
}
if (empty($exam_file->questions) or !is_array($exam_file->questions)) {
$this->comment(PHP_EOL . 'No Answers in the file you provided' . PHP_EOL);
continue;
}
$exam_id = $exam_file->exam_id;
$student_id = $exam_file->student_id;
if (!($exam = Exam::with(['questions' => function ($query) {
$query->wherePivot('devide_grade', 0);
}, 'questions.choices'])->find($exam_id))) {
$this->comment(PHP_EOL . 'Exam does not exist' . PHP_EOL);
continue;
}
$result_data = ['student_id' => $student_id, 'exam_id' => $exam->id, 'semester_id' => $exam->semester_id];
$grade_per_question = 0.5;
if ($exam->type == 'activity') {
$grade_per_question = $this->activity_points / $exam->questions->count();
} else {
if ($exam->type == 'midterm') {
$grade_per_question = $this->midterm_points / $exam->questions->filter(function ($question) {
return $question->type != 'essay';
})->count();
} else {
$this->comment(PHP_EOL . 'We Only correcting activities for now' . PHP_EOL);
continue;
}
}
// dd($grade_per_question);
// if ($result = ExamResult::firstOrCreate($result_data)) {
$result_answers = [];
$grade = 0.0;
$answers = $exam_file->questions;
foreach ($answers as $answer) {
$result_answer = [];
$result_answer['question_id'] = $answer->question_id;
$result_answer['answer'] = $answer->answer;
$result_answers[$answer->question_id] = $result_answer;
}
StudentGrade::where('student_id', $student_id)->where(['ref_key' => 'exam', 'ref_value' => $exam->id])->delete();
$result->answers()->delete();
foreach ($exam->questions as $question) {
$current_grade = 0;
switch ($question->type) {
case 'true_false':
$true_choice = $question->choices->first(function ($key, $choice) {
return $choice->istrue;
});
$is_true = array_where($answers, function ($key, $answer) use($true_choice) {
return $answer->answer == $true_choice->id;
});
// var_dump($true_choice->toArray());
if (count($is_true)) {
$current_grade = $grade_per_question;
}
break;
case 'single_choice':
$true_choice = $question->choices->first(function ($key, $choice) {
return $choice->istrue;
});
$is_true = array_where($answers, function ($key, $answer) use($true_choice) {
return $answer->answer == $true_choice->id;
});
if (count($is_true)) {
$current_grade = $grade_per_question;
}
break;
case 'multiple_choice':
$question_grade = 0;
$multiple_answer = array_first($answers, function ($key, $answer) use($question) {
return $answer->question_id == $question->id;
});
if ($multiple_answer) {
$all_answers = $multiple_answer ? array_filter(explode(",", $multiple_answer->answer)) : [];
$all_answered_count = count($all_answers);
if ($all_answered_count == $question->choices->count() || $all_answered_count == 0) {
$current_grade = 0.0;
} else {
$true_answers = $question->choices->filter(function ($question) {
return $question->istrue;
});
if ($true_answers) {
$true_answers_ids = $true_answers->pluck('id')->toArray();
$true_answers_count = count($true_answers_ids);
$right_answered_count = count(array_intersect($all_answers, $true_answers_ids));
$wrong_answered_count = $all_answered_count - $right_answered_count;
$grade_per_choice = $true_answers_count > 0 ? $grade_per_question / $true_answers_count : 0;
$multichoice_right_grade = $right_answered_count * $grade_per_choice;
$multichoice_wrong_grade = $wrong_answered_count * $grade_per_choice;
if ($multichoice_wrong_grade <= $multichoice_right_grade) {
$question_grade = $multichoice_right_grade - $multichoice_wrong_grade;
} else {
$question_grade = 0;
}
// if ($question_grade > $grade_per_question) {
// $current_grade = $grade_per_question;
// } else {
$current_grade = $question_grade;
// }
// $current_grade = $multichoice_right_grade;
}
}
}
break;
}
$result_answers[$question->id]['degree'] = $current_grade;
$grade += $current_grade;
}
foreach ($result_answers as $a) {
$result->answers()->create($a);
}
if ($exam->type == 'activity' && $grade > $this->activity_points) {
$grade = $this->activity_points;
}
$notes = '';
switch ($exam->type) {
case 'midterm':
$notes = 'درجة اختبار المنتصف الاختيار ' . $exam->name;
break;
case 'activity':
$notes = 'درجة النشاط ' . $exam->name;
break;
}
$search_data = ['student_id' => $student_id, 'ref_value' => $exam->id, 'ref_key' => 'exam', 'subject_id' => $exam->subject_id, 'semester_id' => $semester_id, 'notes' => $notes];
$update_data = ['value' => round($grade, 2)];
StudentGrade::updateOrCreate($search_data, $update_data);
}
$this->comment(PHP_EOL . 'Correcting is done :)' . PHP_EOL);
}
public function print_exam($exam_id, $with_answer = false)
{
$exam = Exam::with('subject')->findOrFail($exam_id);
/*\DB::listen(function ($query) {
var_dump($query->sql);
// $query->bindings
// $query->time
});*/
$questions = ExamQuestion::with(['question', 'question.choices', 'question.lesson'])->where('exam_id', $exam_id)->select("exam_questions.*")->join("questionbank_questions AS qbq", "qbq.id", '=', "exam_questions.question_id")->orderByRaw(\DB::raw("FIELD(qbq.type, 'true_false' , 'single_choice' , 'multiple_choice' , 'essay ' )"))->get();
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->SetFont('traditionalarabic', '', 18, '', 'false');
$pdf->setRTL('enable', true);
$pdf->SetPrintHeader(false);
$pdf->SetPrintFooter(true);
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
$pdf->setFooterFont(array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
$pdf->startPageGroup();
$pdf->AddPage();
if ($with_answer) {
if (user()->can('printwithanswer.exams.exams')) {
$pdf->writeHTML(view('exams::exams.print', compact('exam', 'questions'))->render());
}
} else {
if (user()->can('printwithoutanswer.exams.exams')) {
$pdf->writeHTML(view('exams::exams.printwithoutanswer', compact('exam', 'questions'))->render());
}
}
$filename = $exam->id . '.pdf';
ob_clean();
$pdf->output($filename, 'D');
return redirect()->back()->with('success', trans('exams::exams.download_success'));
}
public function destroy($exam_id)
{
$exam = Exam::with('results')->inCurrentSemester()->findOrFail($exam_id);
if (!$exam->results->isEmpty()) {
return redirect()->route('teachers.profile.activitiessubject', $subject_id)->with('error', trans('exams::exams.cant_delete_with_results'));
}
if (!$exam->delete()) {
return redirect()->back()->with('error', trans('exams::exams.delete_error'));
}
return redirect()->route('teachers.profile.activitiessubject')->with('success', trans('exams::exams.delete_success'));
}
public function store(Request $request)
{
$error = 0;
if (!$request->hasFile('answer')) {
$error = 1;
$message = 'لم تقم برفع أي ملف';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}
$file = $request->file('answer');
$exam_file = json_decode(file_get_contents($file->getRealPath()));
if (empty($exam_file->exam_id)) {
$error = 1;
$message = 'الملف الذي رفعته غير صحيح';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}
if (empty($exam_file->questions) or !is_array($exam_file->questions)) {
$error = 1;
$message = 'لا توجد إجابات بالاختبار الذي رفعته';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}
$exam_id = $exam_file->exam_id;
$student_id = $exam_file->student_id;
if (!($exam = Exam::with('questions', 'questions.choices')->find($exam_id))) {
$error = 1;
$message = 'الاختبار الذي تحاول رفع إجابته غير موجود';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}
$result_data = ['student_id' => $student_id, 'exam_id' => $exam->id, 'semester_id' => $exam->semester_id];
$grade_per_question = 0.5;
if ($exam->type == 'activity') {
$grade_per_question = round($this->activity_points / $exam->questions->count(), 2);
}
// dd($grade_per_question);
if ($result = ExamResult::firstOrCreate($result_data)) {
$result_answers = [];
$grade = 0.0;
$answers = $exam_file->questions;
foreach ($answers as $answer) {
$result_answer = [];
$result_answer['question_id'] = $answer->question_id;
$result_answer['answer'] = $answer->answer;
$result_answers[] = $result_answer;
}
StudentGrade::where('student_id', $student_id)->where(['ref_key' => 'exam', 'ref_value' => $exam->id])->delete();
$result->answers()->delete();
foreach ($result_answers as $a) {
$result->answers()->create($a);
}
foreach ($exam->questions as $question) {
switch ($question->type) {
case 'true_false':
$true_choice = $question->choices->first(function ($key, $choice) {
return $choice->istrue;
});
$is_true = array_where($answers, function ($key, $answer) use($true_choice) {
return $answer->answer == $true_choice->id;
});
// var_dump($true_choice->toArray());
if (count($is_true)) {
$grade += round($grade_per_question, 2);
}
break;
case 'single_choice':
$true_choice = $question->choices->first(function ($key, $choice) {
return $choice->istrue;
});
$is_true = array_where($answers, function ($key, $answer) use($true_choice) {
return $answer->answer == $true_choice->id;
});
if (count($is_true)) {
$grade += round($grade_per_question, 2);
}
break;
case 'multiple_choice':
$multiple_answer = array_first($answers, function ($key, $answer) use($question) {
return $answer->question_id == $question->id;
});
if ($multiple_answer) {
$all_answers = $multiple_answer ? explode(",", $multiple_answer->answer) : 0;
if (count($all_answers) == $question->choices->count()) {
$grade += "0.00";
} else {
$true_answers = $question->choices->filter(function ($question) {
return $question->istrue;
});
if ($true_answers) {
$true_answers_ids = $true_answers->pluck('id')->toArray();
$intersect = array_intersect($all_answers, $true_answers_ids);
$multichoice_grade = count($intersect) * ($grade_per_question / count($true_answers_ids));
$grade += round($multichoice_grade, 2);
}
}
}
break;
}
}
if ($exam->type == 'activity' && $grade > $this->activity_points) {
$grade = $this->activity_points;
}
$data = ['student_id' => $student_id, 'value' => $grade, 'ref_value' => $exam->id, 'ref_key' => 'exam', 'subject_id' => $exam->subject_id, 'semester_id' => Semester()->id, 'notes' => 'درجة الأنشطة'];
StudentGrade::create($data);
$message = 'تم رفع الإجابة بنجاح';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
} else {
$error = 1;
$message = 'لم يتم حفظ الإجابة!! حدث خلل.';
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}
return response()->json(compact('error', 'message'), 200, [], JSON_NUMERIC_CHECK);
}