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✏️ Editing: Examgroup.php

<?php
if (!defined('BASEPATH')) {
    exit('No direct script access allowed');
}

class Examgroup extends Admin_Controller
{

public $exam_type            = array();
    private $sch_current_session = "";

public function __construct()
    {
        parent::__construct();
        $this->load->library('encoding_lib');
        $this->load->library('mailsmsconf');
        $this->exam_type           = $this->config->item('exam_type');
        $this->sch_current_session = $this->setting_model->getCurrentSession();
        $this->attendence_exam     = $this->config->item('attendence_exam');
        $this->sch_setting_detail  = $this->setting_model->getSetting();
    }

public function exportformat()
    {
        $this->load->helper('download');
        $filepath = "./backend/import/import_marks_sample_file.csv";
        $data     = file_get_contents($filepath);
        $name     = 'import_marks_sample_file.csv';
        force_download($name, $data);
    }

public function uploadfile()
    {

$this->form_validation->set_error_delimiters('', '');
        $this->form_validation->set_rules('file', $this->lang->line('image'), 'callback_handle_upload');
        if ($this->form_validation->run() == false) {
            $data = array(
                'file' => form_error('file'),
            );
            $array = array('status' => 0, 'error' => $data);
            echo json_encode($array);
        } else {
            $return_array = array();
//====================
            if (isset($_FILES["file"]) && !empty($_FILES['file']['name'])) {

$fileName = $_FILES["file"]["tmp_name"];
                if (isset($_FILES["file"]) && !empty($_FILES['file']['name']) && $_FILES["file"]["size"] > 0) {

$file = fopen($fileName, "r");
                    $flag = true;
                    while (($column = fgetcsv($file, 10000, ",")) !== false) {
                        if ($flag) {
                            $flag = false;
                            continue;
                        }
                        if (trim($column['0']) != "" && trim($column['1']) != "" && trim($column['2']) != "") {
                            $return_array[] = json_encode(
                                array(
                                    'adm_no'     => $column['0'],
                                    'attendence' => $column['1'],
                                    'marks'      => number_format($column['2'], 2, '.', ''),
                                    'note'       => $this->encoding_lib->toUTF8($column['3']),
                                )
                            );
                        }
                    }
                }

$array = array('status' => '1', 'error' => '', 'student_marks' => $return_array);
                echo json_encode($array);
            }
            //=============
        }
    }

public function handle_upload()
    {

$image_validate = $this->config->item('csv_validate');

if (isset($_FILES["file"]) && !empty($_FILES['file']['name']) && $_FILES["file"]["size"] > 0) {

$file_type         = $_FILES["file"]['type'];
            $file_size         = $_FILES["file"]["size"];
            $file_name         = $_FILES["file"]["name"];
            $allowed_extension = $image_validate['allowed_extension'];
            $ext               = pathinfo($file_name, PATHINFO_EXTENSION);
            $allowed_mime_type = $image_validate['allowed_mime_type'];
            $finfo             = finfo_open(FILEINFO_MIME_TYPE);
            $mtype             = finfo_file($finfo, $_FILES['file']['tmp_name']);
            finfo_close($finfo);

if (!in_array($mtype, $allowed_mime_type)) {
                $this->form_validation->set_message('handle_upload', 'File Type Not Allowed');
                return false;
            }

if (!in_array($ext, $allowed_extension) || !in_array($file_type, $allowed_mime_type)) {
                $this->form_validation->set_message('handle_upload', 'Extension Not Allowed');
                return false;
            }
            if ($file_size > $image_validate['upload_size']) {
                $this->form_validation->set_message('handle_upload', $this->lang->line('file_size_shoud_be_less_than') . number_format($image_validate['upload_size'] / 1048576, 2) . " MB");
                return false;
            }

return true;
        } else {
            $this->form_validation->set_message('handle_upload', 'Please choose a file to upload.');
            return false;
        }
    }

public function index()
    {
        if (!$this->rbac->hasPrivilege('exam_group', 'can_view')) {
            access_denied();
        }
        $this->session->set_userdata('top_menu', 'Examinations');
        $this->session->set_userdata('sub_menu', 'Examinations/examgroup');
        $data['title']      = 'Add Batch';
        $data['title_list'] = 'Recent Batch';
        $data['examType']   = $this->exam_type;
        $this->form_validation->set_rules('name', $this->lang->line('name'), 'trim|required|xss_clean');
        $this->form_validation->set_rules('exam_type', $this->lang->line('exam') . " " . $this->lang->line('type'), 'trim|required|xss_clean');

if ($this->form_validation->run() == false) {

} else {
            $is_active = 0;

$data = array(
                'name'        => $this->input->post('name'),
                'exam_type'   => $this->input->post('exam_type'),
                'is_active'   => $is_active,
                'description' => $this->input->post('description'),
            );

$insert_id = $this->examgroup_model->add($data);

$this->session->set_flashdata('msg', '<div class="alert alert-success text-left">' . $this->lang->line('success_message') . '</div>');
            redirect('admin/examgroup/index');
        }
        $examgroup_result      = $this->examgroup_model->get();
        $data['examgrouplist'] = $examgroup_result;

$this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/examgroupList', $data);
        $this->load->view('layout/footer', $data);
    }

public function getExamByExamgroup()
    {
        $exam_group_id = $this->input->post('exam_group_id');
        $data          = $this->examgroup_model->getExamByExamGroup($exam_group_id, true);
        echo json_encode($data);
    }

public function deleteExam()
    {

$data['title'] = 'deleteExam';
        $id            = $this->input->post('id');
        if (!$this->examgroup_model->delete_exam($id)) {
            echo json_encode(array('status' => 0, 'message' => $this->lang->line('something_wrong')));
        } else {
            echo json_encode(array('status' => 1, 'message' => $this->lang->line('record_deleted_successfully')));
        }
    }

public function exam($id)
    {
        $data                    = array();
        $data['examgroupDetail'] = $this->examgroup_model->getExamByID($id);
        $data['exam_subjects']   = $this->batchsubject_model->getExamSubjects($id);
        $class                   = $this->class_model->get();
        $data['classlist']       = $class;
        $session                 = $this->session_model->get();
        $data['sessionlist']     = $session;
        $data['current_session'] = $this->sch_current_session;
        $this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/exam', $data);
        $this->load->view('layout/footer', $data);
    }

public function examresult($id)
    {
        $data = array();

$data['id']        = $id;
        $class             = $this->class_model->get();
        $data['classlist'] = $class;
        if ($this->input->server('REQUEST_METHOD') == 'POST') {
            $exam_subject_id                                = $this->input->post('exam_group_class_batch_exam_subject_id');
            $class_id                                       = $this->input->post('class_id');
            $batch_id                                       = $this->input->post('batch_id');
            $data['class_id']                               = $this->input->post('class_id');
            $data['batch_id']                               = $this->input->post('batch_id');
            $data['exam_group_class_batch_exam_subject_id'] = $this->input->post('exam_group_class_batch_exam_subject_id');

$data['exam_subjects'] = $this->batchsubject_model->getExamSubjects($id);
            $resultlist            = $this->batchsubject_model->examGroupExamResult($class_id, $batch_id, $id);

$data['resultlist'] = $resultlist;
        }

$this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/examresult', $data);
        $this->load->view('layout/footer', $data);
    }

public function addmark($id)
    {
        $data = array();

$data['exam_subjects'] = $this->batchsubject_model->getExamSubjects($id);
        $data['id']            = $id;
        $class                 = $this->class_model->get();
        $data['classlist']     = $class;
        $session               = $this->session_model->get();
        $data['sessionlist']   = $session;
        if ($this->input->server('REQUEST_METHOD') == 'POST') {

$exam_subject_id                                = $this->input->post('exam_group_class_batch_exam_subject_id');
            $data['exam_group_class_batch_exam_subject_id'] = $this->input->post('exam_group_class_batch_exam_subject_id');
            $class_id                                       = $this->input->post('class_id');
            $section_id                                     = $this->input->post('section_id');
            $session_id                                     = $this->input->post('session_id');
            $data['class_id']                               = $this->input->post('class_id');
            $data['section_id']                             = $this->input->post('section_id');
            $data['session_id']                             = $this->input->post('session_id');
            $resultlist                                     = $this->examgroupstudent_model->examGroupSubjectResult($exam_subject_id, $class_id, $section_id, $session_id);
            $subject_detail                                 = $this->batchsubject_model->getExamSubject($exam_subject_id);
            $data['subject_detail']                         = $subject_detail;
            $data['attendence_exam']                        = $this->attendence_exam;
            $data['resultlist']                             = $resultlist;
        }

$this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/addmark', $data);
        $this->load->view('layout/footer', $data);
    }

public function delete($id)
    {
        if (!$this->rbac->hasPrivilege('exam_group', 'can_delete')) {
            access_denied();
        }
        $data['title'] = 'Delete Batch';
        $this->examgroup_model->remove($id);
        redirect('admin/examgroup');
    }

public function edit($id)
    {
        if (!$this->rbac->hasPrivilege('exam', 'can_edit')) {
            access_denied();
        }

$data['id']            = $id;
        $examgroup             = $this->examgroup_model->get($id);
        $data['examgroup']     = $examgroup;
        $data['examType']      = $this->exam_type;
        $examgroup_result      = $this->examgroup_model->get();
        $data['examgrouplist'] = $examgroup_result;

$this->form_validation->set_rules('name', $this->lang->line('name'), 'trim|required|xss_clean');

if ($this->form_validation->run() == false) {
            $this->load->view('layout/header', $data);
            $this->load->view('admin/examgroup/examgroupEdit', $data);
            $this->load->view('layout/footer', $data);
        } else {
            $is_active = 0;

$data = array(
                'id'          => $this->input->post('id'),
                'name'        => $this->input->post('name'),
                'exam_type'   => $this->input->post('exam_type'),
                'is_active'   => $is_active,
                'description' => $this->input->post('description'),
            );
            $insert_id = $this->examgroup_model->add($data);

$this->session->set_flashdata('msg', '<div class="alert alert-success text-left">' . $this->lang->line('update_message') . '</div>');
            redirect('admin/examgroup/index');
        }
    }

public function getByClassSection()
    {
        $section_id = $this->input->post('section_id');
        $data       = $this->examgroup_model->getStudentBatch($section_id);
        echo json_encode($data);
    }

public function addexam($id)
    {

if (!$this->rbac->hasPrivilege('exam', 'can_view')) {
            access_denied();
        }
        $this->session->set_userdata('top_menu', 'Examinations');
        $this->session->set_userdata('sub_menu', 'Examinations/examgroup');
        $data['title']      = 'Add Batch';
        $data['title_list'] = 'Recent Batch';

$class               = $this->class_model->get();
        $data['classlist']   = $class;
        $data['examType']    = $this->exam_type;
        $session             = $this->session_model->get();
        $data['sessionlist'] = $session;
        $subjectlist         = $this->subject_model->get();
        $data['subjectlist'] = $subjectlist;

$data['current_session'] = $this->sch_current_session;
        $data['examgroup']       = $this->examgroup_model->get($id);

$this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/addexam', $data);
        $this->load->view('layout/footer', $data);
    }

public function getNotAppliedDiscount($student_session_id)
    {
        return $this->feediscount_model->getDiscountNotApplied($student_session_id);
    }

public function subjectstudent()
    {
        $this->form_validation->set_error_delimiters('<p>', '</p>');
        $this->form_validation->set_rules('class_id', $this->lang->line('class'), 'required|trim|xss_clean');
        $this->form_validation->set_rules('section_id', $this->lang->line('section'), 'required|trim|xss_clean');
        $this->form_validation->set_rules('subject_id', $this->lang->line('subject'), 'required|trim|xss_clean');
        $this->form_validation->set_rules('session_id', $this->lang->line('session'), 'required|trim|xss_clean');
        $userdata = $this->customlib->getUserData();
        $role_id  = $userdata["role_id"];
        $can_edit = 1;
        if (isset($role_id) && ($userdata["role_id"] == 2) && ($userdata["class_teacher"] == "yes")) {
            $myclasssubjects = $this->subjecttimetable_model->canAddExamMarks($userdata["id"], $this->input->post('class_id'), $this->input->post('section_id'), $this->input->post('teachersubject_id'));
            $can_edit        = $myclasssubjects;
        }

if ($this->form_validation->run() == false) {
            $data = array(
                'class_id'   => form_error('class_id'),
                'section_id' => form_error('section_id'),
                'session_id' => form_error('session_id'),
                'subject_id' => form_error('subject_id'),
            );
            $array = array('status' => 0, 'error' => $data);
            echo json_encode($array);
        } elseif ($can_edit == 0) {
            $msg   = array('lesson' => $this->lang->line('not_authoried'));
            $array = array('status' => 0, 'error' => $msg);
            echo json_encode($array);
        } else {
            $exam_subject_id                                = $this->input->post('subject_id');
            $data['exam_group_class_batch_exam_subject_id'] = $exam_subject_id;
            $class_id                                       = $this->input->post('class_id');
            $section_id                                     = $this->input->post('section_id');
            $session_id                                     = $this->input->post('session_id');
            $data['class_id']                               = $this->input->post('class_id');
            $data['section_id']                             = $this->input->post('section_id');
            $data['session_id']                             = $this->input->post('session_id');
            $resultlist                                     = $this->examgroupstudent_model->examGroupSubjectResult($exam_subject_id, $class_id, $section_id, $session_id);
            $subject_detail = $this->batchsubject_model->getExamSubject($exam_subject_id);

$data['subject_detail']  = $subject_detail;
            $data['attendence_exam'] = $this->attendence_exam;
            $data['resultlist']      = $resultlist;
            $data['sch_setting']     = $this->sch_setting_detail;
            $student_exam_page       = $this->load->view('admin/examgroup/_partialstudentmarkEntry', $data, true);

$array = array('status' => '1', 'error' => '', 'page' => $student_exam_page);
            echo json_encode($array);
        }
    }

public function examstudent()
    {
        $this->form_validation->set_error_delimiters('<li>', '</li>');
        $this->form_validation->set_rules('class_id', $this->lang->line('class'), 'required|trim|xss_clean');
        $this->form_validation->set_rules('section_id', $this->lang->line('section'), 'required|trim|xss_clean');

$data['adm_auto_insert'] = $this->sch_setting_detail->adm_auto_insert;
        $data['sch_setting']     = $this->sch_setting_detail;
        if ($this->form_validation->run() == false) {
            $msg = array(
                'class_id'   => form_error('class_id'),
                'section_id' => form_error('section_id'),
                // 'exam_id'    => form_error('exam_id'),
            );
            $array = array('status' => 0, 'error' => $msg);
            echo json_encode($array);
        } else {

$class_id   = $this->input->post('class_id');
            $section_id = $this->input->post('section_id');

$data['class_id']   = $this->input->post('class_id');
            $data['section_id'] = $this->input->post('section_id');
            $data['exam_id']    = $this->input->post('exam_id');
            $resultlist         = $this->examstudent_model->searchExamStudents($data['class_id'], $data['section_id'], $data['exam_id']);

$data['resultlist'] = $resultlist;
            $student_exam_page  = $this->load->view('admin/examgroup/_partialexamstudent', $data, true);
            $array              = array('status' => '1', 'error' => '', 'page' => $student_exam_page);
            echo json_encode($array);
        }
    }

public function ajaxaddexam()
    {
        $this->form_validation->set_error_delimiters('', '');
        $this->form_validation->set_rules('exam', $this->lang->line('exam'), 'required|trim|xss_clean');
        $this->form_validation->set_rules('session_id', $this->lang->line('session'), 'required|trim|xss_clean');

if ($this->form_validation->run() == false) {
            $data = array(
                'exam'       => form_error('exam'),
                'session_id' => form_error('session_id'),
            );
            $array = array('status' => 0, 'error' => $data);
            echo json_encode($array);
        } else {

$exam_id    = $this->input->post('exam_id');
            $is_active  = $this->input->post('is_active');
            $is_publish = $this->input->post('is_publish');

if (isset($is_active)) {
                $is_active = 1;
            } else {
                $is_active = 0;
            }

if (isset($is_publish)) {
                $is_publish = 1;
            } else {
                $is_publish = 0;
            }

$postarray = array(
                'exam'          => $this->input->post('exam'),
                'exam_group_id' => $this->input->post('exam_group_id'),
                'session_id'    => $this->input->post('session_id'),
                'is_active'     => $is_active,
                'is_publish'    => $is_publish,
                'description'   => $this->input->post('description'),
                'use_exam_roll_no'   => $this->input->post('use_exam_roll_no')
            );

if ($exam_id != 0) {
                $postarray['id'] = $exam_id;
            }

$inserted_id = $this->examgroup_model->add_exam($postarray);
            $exam_data   = $this->examgroup_model->getExamByID($exam_id);
            if ($is_publish) {
                $exam_students = $this->examgroupstudent_model->searchExamStudentsByExam($exam_id);
                $student_exams = array('exam' => $exam_data, 'exam_result' => $exam_students);
                $s             = $this->mailsmsconf->mailsms('exam_result', $student_exams);
            }

if ($exam_id != 0) {
                $array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('update_message'));
            } else {
                $array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
            }

echo json_encode($array);
        }
    }

public function getExamsByExamGroup()
    {
        $exam_group_id = $this->input->post('exam_group_id');
        $exams         = $this->examgroup_model->getExamByExamGroup($exam_group_id, true);

$array = array('status' => '1', 'error' => '', 'result' => $exams);
        echo json_encode($array);
    }

public function entrymarks()
    {
        $this->form_validation->set_error_delimiters('', '');
        $this->form_validation->set_rules('exam_group_class_batch_exam_subject_id', 'Subject', 'required|trim|xss_clean');

if ($this->form_validation->run() == false) {
            $data = array(
                'exam_group_class_batch_exam_subject_id' => form_error('exam_group_class_batch_exam_subject_id'),
            );
            $array = array('status' => 0, 'error' => $data);
            echo json_encode($array);
        } else {

$exam_group_student_id = $this->input->post('exam_group_student_id');
            $insert_array          = array();
            $update_array          = array();
            if (!empty($exam_group_student_id)) {
                foreach ($exam_group_student_id as $exam_group_student_key => $exam_group_student_value) {
                    $attendance_post = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
                    if (isset($attendance_post)) {
                        $attendance = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
                    } else {
                        $attendance = "present";
                    }
                    $array = array(
                        'exam_group_class_batch_exam_subject_id' => $this->input->post('exam_group_class_batch_exam_subject_id'),
                        'exam_group_class_batch_exam_student_id' => $exam_group_student_value,
                        'attendence'                             => $attendance,
                        'get_marks'                              => $this->input->post('exam_group_student_mark_' . $exam_group_student_value),
                        'note'                                   => $this->input->post('exam_group_student_note_' . $exam_group_student_value),
                    );
                    $insert_array[] = $array;
                }
            }

$this->examgroupstudent_model->add_result($insert_array);
            $array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
            echo json_encode($array);
        }
    }

public function getexam()
    {
        $examgroup_id     = $this->input->post('examgroup_id');
        $data['examList'] = $this->examgroup_model->getExamByExamGroup($examgroup_id);

$data['exam_page'] = $this->load->view('admin/examgroup/_partialexamList', $data, true);

echo json_encode($data);
    }

public function connectexams()
    {
        $examgroup_id         = $this->input->post('examgroup_id');
        $data['examList']     = $this->examgroup_model->getExamByExamGroupConnection($examgroup_id);
        $data['examgroup_id'] = $examgroup_id;

$data['exam_page'] = $this->load->view('admin/examgroup/_partialexamListConnection', $data, true);
        echo json_encode($data);
    }

public function getExamByID()
    {
        $exam_id = $this->input->post('exam_id');
        $result  = $this->examgroup_model->getExamByID($exam_id);
        if (!empty($result)) {
            $result->date_from = $this->customlib->dateformat($result->date_from);
            $result->date_to   = $this->customlib->dateformat($result->date_to);
        }
        $data['exam'] = $result;
        echo json_encode($data);
    }

public function getexamSubjects()
    {
        $exam_id                 = $this->input->post('exam_id');
        $class_batch_id          = $this->input->post('class_batch_id');
        $exam_group_ids          = $this->input->post('exam_group_id');
        $data['examgroupDetail'] = $this->examgroup_model->getExamByID($exam_id);
        $data['exam_subjects']   = $this->batchsubject_model->getExamSubjects($exam_id);
        $data['batch_subjects']  = $this->subject_model->get();

$data['exam_id']             = $exam_id;
        $data['exam_subjects_count'] = count($data['exam_subjects']);

$data['batch_subject_dropdown'] = $this->load->view('admin/examgroup/_partialexamSubjectDropdown', $data, true);

$data['subject_page'] = $this->load->view('admin/examgroup/_partialexamSubjects', $data, true);

echo json_encode($data);
    }

public function getSubjectByExam()
    {
        $data                    = array();
        $id                      = $this->input->post('recordid');
        $data['examgroupDetail'] = $this->examgroup_model->getExamByID($id);

$data['exam_subjects'] = $this->batchsubject_model->getExamSubjects($id);

$class                   = $this->class_model->get();
        $data['classlist']       = $class;
        $session                 = $this->session_model->get();
        $data['sessionlist']     = $session;
        $data['current_session'] = $this->sch_current_session;
        $data['subject_page']    = $this->load->view('admin/examgroup/_getSubjectByExam', $data, true);
        echo json_encode($data);
    }

public function getTeacherRemarkByExam()
    {
        $data                      = array();
        $id                        = $this->input->post('recordid');
        $data['examgroupDetail']   = $this->examgroup_model->getExamByID($id);
        $data['examgroupStudents'] = $this->examgroupstudent_model->searchExamStudentsByExam($id);
        $data['sch_setting']       = $this->sch_setting_detail;
        $data['subject_page']      = $this->load->view('admin/examgroup/_getTeacherRemarkByExam', $data, true);
        echo json_encode($data);
    }

public function addexamsubject()
    {

$student_id = '';
        $this->form_validation->set_rules('examgroup_id', $this->lang->line('exam') . " " . $this->lang->line('group'), 'trim|required|xss_clean');
        $this->form_validation->set_rules('exam_group_class_batch_exam_id', $this->lang->line('exam') . " " . $this->lang->line('id'), 'trim|required|xss_clean');

$this->form_validation->set_rules('rows[]', $this->lang->line('subject'), 'trim|required|xss_clean');
        $rows=$this->input->post('rows');
        if(isset($rows) && !empty($rows)){
            foreach ($rows as $row_key => $row_value) {

if( $this->input->post('subject_'.$row_value) == ""||
                    $this->input->post('date_from_'.$row_value) == ""||
                    $this->input->post('time_from'.$row_value) == ""||
                    $this->input->post('duration'.$row_value) == ""||
                    $this->input->post('credit_hours'.$row_value) == ""||
                    $this->input->post('room_no_'.$row_value) == ""||
                    $this->input->post('max_marks_'.$row_value) == ""||
                    $this->input->post('min_marks_'.$row_value) == ""){
                   $this->form_validation->set_rules('parameter', 'parameter', 'trim|required|xss_clean', array('required' =>$this->lang->line('fields_values_required')));
                    }

}
        }
   
        if ($this->form_validation->run() == false) {

$msg = array(
                'parameter'                      => form_error('parameter'),
                'examgroup_id'                   => form_error('examgroup_id'),
                'exam_group_class_batch_exam_id' => form_error('exam_group_class_batch_exam_id'),
                'rows'                           => form_error('rows[]'),
            );

$array = array('status' => '0', 'error' => $msg, 'message' => '');
        } else {
            $insert_array  = array();
            $update_array  = array();
            $subject_array = array();

$not_be_del = array();

$rows = $this->input->post('rows');
            foreach ($rows as $row_key => $row_value) {

$update_id = $this->input->post('prev_row[' . $row_value . ']');
                if ($update_id == 0) {

if ($this->input->post('exam_group_class_batch_exam_id') != "" && $this->input->post('subject_' . $row_value) != "" && $this->input->post('date_from_' . $row_value) != "" && $this->input->post('time_from' . $row_value) != "" && $this->input->post('duration' . $row_value) != "" && $this->input->post('max_marks_' . $row_value) != "" && $this->input->post('min_marks_' . $row_value) != "") {

$insert_array[] = array(
                            'exam_group_class_batch_exams_id' => $this->input->post('exam_group_class_batch_exam_id'),
                            'subject_id'                      => $this->input->post('subject_' . $row_value),
                            'credit_hours'                    => $this->input->post('credit_hours' . $row_value),
                            'date_from'                       => date('Y-m-d', $this->customlib->datetostrtotime($this->input->post('date_from_' . $row_value))),
                            'time_from'                       => $this->input->post('time_from' . $row_value),
                            'duration'                        => $this->input->post('duration' . $row_value),
                            'room_no'                         => $this->input->post('room_no_' . $row_value),
                            'max_marks'                       => $this->input->post('max_marks_' . $row_value),
                            'min_marks'                       => $this->input->post('min_marks_' . $row_value),
                        );
                    }
                } else {
                    $not_be_del[]   = $update_id;
                    $update_array[] = array(
                        'id'                              => $update_id,
                        'credit_hours'                    => $this->input->post('credit_hours_' . $row_value),
                        'exam_group_class_batch_exams_id' => $this->input->post('exam_group_class_batch_exam_id'),
                        'subject_id'                      => $this->input->post('subject_' . $row_value),
                        'date_from'                       => date('Y-m-d', $this->customlib->datetostrtotime($this->input->post('date_from_' . $row_value))),
                        'time_from'                       => $this->input->post('time_from' . $row_value),
                        'duration'                        => $this->input->post('duration' . $row_value),
                        'room_no'                         => $this->input->post('room_no_' . $row_value),
                        'max_marks'                       => $this->input->post('max_marks_' . $row_value),
                        'min_marks'                       => $this->input->post('min_marks_' . $row_value),
                    );
                }
            }

$this->examsubject_model->add($insert_array, $update_array, $not_be_del, $this->input->post('exam_group_class_batch_exam_id'));

$array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
        }

echo json_encode($array);
    }

public function assign($id)
    {
        if (!$this->rbac->hasPrivilege('fees_group_assign', 'can_view')) {
            access_denied();
        }
        $this->session->set_userdata('top_menu', 'Batch');
        $this->session->set_userdata('sub_menu', 'examgroup/index');
        $data['id']        = $id;
        $data['title']     = 'student fees';
        $class             = $this->class_model->get();
        $data['classlist'] = $class;
        $examgroup         = $this->examgroup_model->getExamGroupDetailByID($id);

$data['examgroup']   = $examgroup;
        $session_result      = $this->session_model->get();
        $data['sessionlist'] = $session_result;

if ($this->input->server('REQUEST_METHOD') == 'POST') {

$data['class_id']     = $this->input->post('class_id');
            $data['section_id']   = $this->input->post('section_id');
            $data['session_id']   = $this->input->post('session_id');
            $data['examgroup_id'] = $this->input->post('examgroup_id');

$resultlist = $this->examgroupstudent_model->searchExamGroupStudents($data['examgroup_id'], $data['class_id'], $data['section_id'], $data['session_id']);

$data['resultlist'] = $resultlist;
        }

$this->load->view('layout/header', $data);
        $this->load->view('admin/examgroup/assign', $data);
        $this->load->view('layout/footer', $data);
    }

public function addstudent()
    {
        $this->form_validation->set_rules('exam_group', $this->lang->line('exam') . " " . $this->lang->line('group'), 'required|trim|xss_clean');

if ($this->form_validation->run() == false) {
            $data = array(
                'exam_group' => form_error('exam_group'),
            );
            $array = array('status' => 'fail', 'error' => $data);
            echo json_encode($array);
        } else {
            $array_insert = array();
            $array_delete = array();
            $exam_group   = $this->input->post('exam_group');

$students_id  = $this->input->post('students_id');
            $all_students = $this->input->post('all_students');
            $students     = array();
            if (!isset($students_id)) {
                $students_id = array();
            }
            if (!empty($all_students)) {
                foreach ($all_students as $all_students_key => $all_students_value) {
                    if (in_array($all_students_value, $students_id)) {

$array_insert[] = array(
                            'exam_group_id'      => $exam_group,
                            'student_id'         => $all_students_value,
                            'student_session_id' => $all_students_value,
                        );
                    } else {
                        $array_delete[] = $all_students_value;
                    }
                }
            }

$this->examgroupstudent_model->add($array_insert, $array_delete, $exam_group);

$array = array('status' => 'success', 'error' => '', 'message' => $this->lang->line('success_message'));
            echo json_encode($array);
        }
    }

public function ajaxConnectForm()
    {
        if (isset($_POST['action'])) {
            if ($this->input->post('action') == "reset") {
                $exam_group_id = $this->input->post('examgroup_id');
                $this->examgroup_model->deleteExamGroupConnection($exam_group_id);
                $array = array('status' => 1, 'error' => '', 'message' => $this->lang->line('update_message'));
                echo json_encode($array);
            } elseif ($this->input->post('action') == "save") {

$this->form_validation->set_error_delimiters('', '');
                $this->form_validation->set_rules('examgroup_id', $this->lang->line('exam') . " " . $this->lang->line('group'), 'required|trim|xss_clean');

if ($this->form_validation->run() == false) {
                    $data = array(
                        'examgroup_id' => form_error('examgroup_id'),
                    );
                    $array = array('status' => 0, 'error' => $data);
                    echo json_encode($array);
                } else {
                    $array      = array();
                    $exam_array = $this->input->post('exam[]');
                    if (!empty($exam_array)) {
                        if (count($exam_array) <= 1) {
                            $array = array('status' => 0, 'error' => '', 'message' => $this->lang->line('please_select_atleast_two_or_more_exams'));
                        } else {

$exam_group = $this->examgroup_model->verifyExamConnection($exam_array);

if ($exam_group['no_record']) {
                                if (count($exam_group['exam_subject_array']) != count($exam_array)) {
                                    $array          = array('status' => 0, 'error' => '', 'message' => $this->lang->line('please_check_exam_subjects'));
                                    $insert_success = 0;
                                } else {

reset($exam_group['exam_subject_array']);
                                    $result = key($exam_group['exam_subject_array']);

$insert_success = 1;
                                    foreach ($exam_group['exam_subject_array'] as $exam_subject_key => $exam_subject_value) {

$compair_result = $this->compare_multi_Arrays($exam_group['exam_subject_array'][$result], $exam_group['exam_subject_array'][$exam_subject_key]);

if ($compair_result) {

if (!empty($compair_result['more']) || !empty($compair_result['less']) || !empty($compair_result['diff'])) {
                                                $array          = array('status' => 0, 'error' => '', 'message' => $this->lang->line('please_check_exam_subjects'));
                                                $insert_success = 0;
                                                break;
                                            }
                                        } else {
                                            $array          = array('status' => 0, 'error' => '', 'message' => $this->lang->line('please_check_exam_subjects'));
                                            $insert_success = 0;
                                            break;
                                        }
                                    }
                                }
                            } else {
                                $array          = array('status' => 0, 'error' => '', 'message' => $this->lang->line('exams_subject_may_be_empty_please_check_exam_subjects'));
                                $insert_success = 0;
                            }

if ($insert_success) {
                                $insert_array  = array();
                                $exam_group_id = $this->input->post('examgroup_id');
                                if (!empty($exam_array)) {
                                    foreach ($exam_array as $exam_key => $exam_value) {

$insert_array[] = array(
                                            'exam_group_id'                   => $exam_group_id,
                                            'exam_group_class_batch_exams_id' => $exam_value,
                                            'exam_weightage'                  => $this->input->post('exam_' . $exam_value),
                                        );
                                    }
                                }

$this->examgroup_model->connectExam($insert_array, $exam_group_id);
                                $array = array('status' => 1, 'error' => '', 'message' => $this->lang->line('exam_connected_successfully'));
                            }
                        }
                    } else {
                        $array = array('status' => 0, 'error' => '', 'message' => $this->lang->line('no_exams_selected'));
                    }

echo json_encode($array);
                }
            }
        }
    }

public function compare_multi_Arrays($array1, $array2)
    {
        if (!empty($array1) && !empty($array2)) {
            $result = array("more" => array(), "less" => array(), "diff" => array());
            foreach ($array1 as $k => $v) {
                if (is_array($v) && isset($array2[$k]) && is_array($array2[$k])) {
                    $sub_result = compare_multi_Arrays($v, $array2[$k]);

foreach (array_keys($sub_result) as $key) {
                        if (!empty($sub_result[$key])) {
                            $result[$key] = array_merge_recursive($result[$key], array($k => $sub_result[$key]));
                        }
                    }
                } else {
                    if (isset($array2[$k])) {
                        if ($v !== $array2[$k]) {
                            $result["diff"][$k] = array("from" => $v, "to" => $array2[$k]);
                        }
                    } else {
                        $result["more"][$k] = $v;
                    }
                }
            }
            foreach ($array2 as $k => $v) {
                if (!isset($array1[$k])) {
                    $result["less"][$k] = $v;
                }
            }
            return $result;
        }
        return false;
    }

public function getExamGroupByClassSection()
    {
        $exam_group = array();
        $class_id   = $this->input->post('class_id');
        $section_id = $this->input->post('section_id');
        $session_id = $this->input->post('session_id');
        $exam_group = $this->examgroup_model->getExamGroupByClassSection($class_id, $section_id, $session_id);
        echo json_encode(array('status' => 1, 'exam_group' => $exam_group));
    }

public function entrystudents()
    {
        $this->form_validation->set_error_delimiters('', '');
        $this->form_validation->set_rules('exam_group_class_batch_exam_id', $this->lang->line('exam'), 'required|trim|xss_clean');

if ($this->form_validation->run() == false) {

$data = array(
                'exam_group_class_batch_exam_id' => form_error('exam_group_class_batch_exam_id'),
            );

$array = array('status' => 0, 'error' => $data);
            echo json_encode($array);
        } else {
            $check_alreay_inserted_students = array();
            $state                          = 1;
            $exam_group_class_batch_exam_id = $this->input->post('exam_group_class_batch_exam_id');
            $student_session                = $this->input->post('student_session_id');
            $all_students                   = $this->input->post('all_students');
            $insert_array                   = array();
            if (isset($student_session) && !empty($student_session)) {
                foreach ($student_session as $student_key => $student_value) {
                    $check_alreay_inserted_students[] = $this->input->post('student_' . $student_value);
                    $insert_array[]                   = array(
                        'exam_group_class_batch_exam_id' => $exam_group_class_batch_exam_id,
                        'student_id'                     => $this->input->post('student_' . $student_value),
                        'student_session_id'             => $student_value,
                    );
                }
            }

$this->examstudent_model->add_student($insert_array, $exam_group_class_batch_exam_id, $all_students);
            $array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));

echo json_encode($array);
        }
    }

public function saveexamremark()
    {
        $students = $this->input->post('exam_group_class_batch_exam_student');
        if (!empty($students)) {
            $batch_update_array = array();
            foreach ($students as $student_key => $student_value) {
                $update_array = array(
                    'id'             => $student_value,
                    'teacher_remark' => $this->input->post('remark_' . $student_value),
                );
            $batch_update_array[]=$update_array;
            }
            $this->examgroupstudent_model->updateExamStudent($batch_update_array);
        }
        $array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
        echo json_encode($array);
    }

}

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