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Current File : /home/jnclnmuac/public_html/web/pdf/../css/../../cas/application/controllers/admin/Subject.php
<?php

/**
 * Controller For Handling Request Related To Subjects
 *
 * @author Ankit Srivastava
 */
defined('BASEPATH') OR exit('No direct script access allowed');

class Subject extends CI_Controller {

    public function __construct() {
        parent::__construct();
        $this->load->model('admin/SubjectManagement');
        $this->load->model('admin/CourseManagement');
        $this->load->model('admin/DepartmentManagement');
        $this->load->model('admin/DesignationManagement');
        $this->load->model('admin/SessionManagement');
        $this->load->model('admin/StudentManagement');
    }

    public function index() {
        if ($this->sessionvalidator->isLoggedIn() && $this->sessionvalidator->isAccessGranted()) {
            $viewData['allSubjects'] = $this->SubjectManagement->getAllSubjects()->result();
            $this->load->view('admin/academics/subjects', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function createSubject() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['allSubjectsTypes'] = $this->SubjectManagement->getAllSubjectTypes('T', 'F')->result();
            $this->load->view('admin/academics/createSubject', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function saveNewSubject() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $this->form_validation->set_rules('subjectName', 'Subject Name', 'required|trim', array('required' => 'Subject Name Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectCode', 'Subject Code', 'required|trim', array('required' => 'Subject Code Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectType', 'Subject Type', 'required|trim', array('required' => 'Subject Type Is Required.'));
            $this->form_validation->set_rules('subjectCourse', 'Course', 'required|trim', array('required' => 'Please Select Course.'));
            $this->form_validation->set_rules('subjectCourseSemOrYear', 'Semester/Year', 'required|trim', array('required' => 'Please Select Semester/Year.'));
            $this->form_validation->set_rules('sm_paper_type', 'Paper Type', 'required|trim', array('required' => 'Please Select Paper Type.'));
            $this->form_validation->set_rules('sm_lecture_hr', 'Lecture Hour', 'required|trim', array('required' => 'Lecture Hour Is Required.'));
            $this->form_validation->set_rules('sm_tutorial_hr', 'Tutorial Hour', 'required|trim', array('required' => 'Tutorial Hour Is Required.'));
            $this->form_validation->set_rules('sm_practical_hr', 'Practial Hour', 'required|trim', array('required' => 'Practial Hour Is Required.'));
            $this->form_validation->set_rules('sm_assessment_ct', 'Class Assessment Marks', 'required|trim', array('required' => 'Class Assessment Marks Is Required.'));
            $this->form_validation->set_rules('sm_assessment_ta', 'Teacher Assessment Marks', 'required|trim', array('required' => 'Teacher Assessment Marks Is Required.'));
            $this->form_validation->set_rules('sm_end_sem_theory', 'Semester Theory Marks', 'required|trim', array('required' => 'Semester Theory Marks Is Required.'));
            $this->form_validation->set_rules('sm_end_sem_practical', 'Semester Practical Marks', 'required|trim', array('required' => 'Semester Practical Marks Is Required.'));
            $queryBySubjectName = $this->SubjectManagement->getSubjectInfoByName(trim($this->input->post('subjectName')));
            $subjectInfoByName = $queryBySubjectName->result();
            $queryBySubjectCode = $this->SubjectManagement->getSubjectInfoByCode(trim($this->input->post('subjectCode')));
            $subjectInfoByCode = $queryBySubjectCode->result();
            if ($this->form_validation->run() == FALSE) {
                $this->createSubject();
            } else if (sizeof($subjectInfoByName)) {
                $this->session->set_flashdata('errorMessage', "A Subject With This Name (" . trim($this->input->post('subjectName')) . ") Already Exits. Please Choose A Different Name.");
                $this->createSubject();
            } else if (sizeof($subjectInfoByCode)) {
                $this->session->set_flashdata('errorMessage', "A Subject With This Code (" . trim($this->input->post('subjectCode')) . ") Already Exits. Please Choose A Different Code.");
                $this->createSubject();
            } else {
                $subjectSyllabusFileWithPath = "";
                if (!empty($_FILES['sm_syllabus_file']['name'])) {
                    $subjectSyllabus['upload_path'] = './assets/admin/uploads/subjectSyllabus/';
                    $subjectSyllabus['allowed_types'] = 'pdf';
                    $subjectSyllabus['max_size'] = '1024';
                    $subjectSyllabus['file_ext_tolower'] = TRUE;
                    $subjectSyllabus['encrypt_name'] = TRUE;
                    $this->load->library('upload', $subjectSyllabus);
                    if (!$this->upload->do_upload('sm_syllabus_file')) {
                        $this->session->set_flashdata('errorMessage', "Subject Syllabus Can Not Be Uploaded As It Violates Upload File Criteria. File Size 1 MB Max. & Allowed Extension: Only *.pdf.");
                        $this->createSubject();
                    } else {
                        $subjectSyllabusFileWithPath = "/assets/admin/uploads/subjectSyllabus/" . $this->upload->data()['file_name'];
                    }
                }
                $newSubjectInfo = array(
                    'sm_name' => addslashes(trim($this->input->post('subjectName'))),
                    'sm_code' => addslashes(trim($this->input->post('subjectCode'))),
                    'st_id' => trim($this->input->post('subjectType')),
                    'course_id' => $this->input->post('subjectCourse'),
                    'sm_semester' => trim($this->input->post('subjectCourseSemOrYear')),
                    'sm_added_on' => date("Y-m-d H:i:s"),
                    'sm_added_by' => $this->session->userdata("adminData")["smember_id"],
                    'sm_updated_on' => date("Y-m-d H:i:s"),
                    'sm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                    'sm_paper_type' => $this->input->post('sm_paper_type'),
                    'sm_lecture_hr' => $this->input->post('sm_lecture_hr'),
                    'sm_tutorial_hr' => $this->input->post('sm_tutorial_hr'),
                    'sm_practical_hr' => $this->input->post('sm_practical_hr'),
                    'sm_theory_credit' => $this->input->post('sm_lecture_hr') + $this->input->post('sm_tutorial_hr'),
                    'sm_practical_credit' => $this->input->post('sm_practical_hr') / 2,
                    'sm_assessment_ct' => $this->input->post('sm_assessment_ct'),
                    'sm_assessment_ta' => $this->input->post('sm_assessment_ta'),
                    'sm_end_sem_theory' => $this->input->post('sm_end_sem_theory'),
                    'sm_end_sem_practical' => $this->input->post('sm_end_sem_practical'),
                    'sm_syllabus_file' => $subjectSyllabusFileWithPath
                );
                if ($this->SubjectManagement->createNewSubject($newSubjectInfo)) {
                    $this->session->set_flashdata('successMessage', 'Subject Created Successfully.');
                    redirect("admin/Subject");
                } else {
                    $this->session->set_flashdata('errorMessage', 'An Error Occured While Creating Subject. Try Later.');
                    redirect(current_url());
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function editSubject($sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['subjectInfo'] = $this->SubjectManagement->getSubjectInfoBy($sm_id)->result()[0];
            $viewData['allSubjectsTypes'] = $this->SubjectManagement->getAllSubjectTypes('T', 'F')->result();
            $this->load->view('admin/academics/editSubject', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function updateSubject() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectId = trim($this->input->post("subjectId"));
            $this->form_validation->set_rules('subjectName', 'Subject Name', 'required|trim', array('required' => 'Subject Name Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectCode', 'Subject Code', 'required|trim', array('required' => 'Subject Code Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectType', 'Subject Type', 'required|trim', array('required' => 'Subject Type Is Required.'));
            $this->form_validation->set_rules('subjectCourse', 'Course', 'required|trim', array('required' => 'Please Select Course.'));
            $this->form_validation->set_rules('subjectCourseSemOrYear', 'Semester/Year', 'required|trim', array('required' => 'Please Select Semester/Year.'));
            $this->form_validation->set_rules('sm_paper_type', 'Paper Type', 'required|trim', array('required' => 'Please Select Paper Type.'));
            $this->form_validation->set_rules('sm_lecture_hr', 'Lecture Hour', 'required|trim', array('required' => 'Lecture Hour Is Required.'));
            $this->form_validation->set_rules('sm_tutorial_hr', 'Tutorial Hour', 'required|trim', array('required' => 'Tutorial Hour Is Required.'));
            $this->form_validation->set_rules('sm_practical_hr', 'Practial Hour', 'required|trim', array('required' => 'Practial Hour Is Required.'));
            $this->form_validation->set_rules('sm_assessment_ct', 'Class Assessment Marks', 'required|trim', array('required' => 'Class Assessment Marks Is Required.'));
            $this->form_validation->set_rules('sm_assessment_ta', 'Teacher Assessment Marks', 'required|trim', array('required' => 'Teacher Assessment Marks Is Required.'));
            $this->form_validation->set_rules('sm_end_sem_theory', 'Semester Theory Marks', 'required|trim', array('required' => 'Semester Theory Marks Is Required.'));
            $this->form_validation->set_rules('sm_end_sem_practical', 'Semester Practical Marks', 'required|trim', array('required' => 'Semester Practical Marks Is Required.'));
            $subjectSyllabusFileName = substr($this->input->post('currentSyllabusFile'), strripos($this->input->post('currentSyllabusFile'), "/") + 1);
            if ($this->form_validation->run() == FALSE) {
                $this->createSubject();
            } else if (!$this->SubjectManagement->isSubjectNameSafeUpdate($subjectId, trim($this->input->post('courseAlias')))) {
                $this->session->set_flashdata('errorMessage', "A Subject With This Name (" . trim($this->input->post('subjectName')) . ") Already Exits. Please Choose A Different Name.");
                $this->createSubject();
            } else if (!$this->SubjectManagement->isSubjectCodeSafeUpdate($subjectId, trim($this->input->post('courseAlias')))) {
                $this->session->set_flashdata('errorMessage', "A Subject With This Code (" . trim($this->input->post('subjectCode')) . ") Already Exits. Please Choose A Different Code.");
                $this->createSubject();
            } else {
                $subjectSyllabusFileWithPath = "";
                if (!empty($_FILES['sm_syllabus_file']['name'])) {
                    $subjectSyllabus['upload_path'] = './assets/admin/uploads/subjectSyllabus/';
                    $subjectSyllabus['allowed_types'] = 'pdf';
                    $subjectSyllabus['max_size'] = '1024';
                    $subjectSyllabus['file_ext_tolower'] = TRUE;
                    $subjectSyllabus['encrypt_name'] = TRUE;
                    $this->load->library('upload', $subjectSyllabus);
                    if (!$this->upload->do_upload('sm_syllabus_file')) {
                        $this->session->set_flashdata('errorMessage', "Subject Syllabus Can Not Be Uploaded As It Violates Upload File Criteria. File Size 1 MB Max. & Allowed Extension: Only *.pdf.");
                        $this->createSubject();
                    } else {
                        $subjectSyllabusFileWithPath = "/assets/admin/uploads/subjectSyllabus/" . $this->upload->data()['file_name'];
                        if (file_exists("./assets/admin/uploads/subjectSyllabus/" . $subjectSyllabusFileName)) {
                            unlink("./assets/admin/uploads/subjectSyllabus/" . $subjectSyllabusFileName);
                        }
                    }
                } else {
                    $subjectSyllabusFileWithPath = trim($this->input->post('currentSyllabusFile'));
                }
                $subjectInfo = array(
                    'sm_id' => $subjectId,
                    'sm_name' => addslashes(trim($this->input->post('subjectName'))),
                    'sm_code' => addslashes(trim($this->input->post('subjectCode'))),
                    'st_id' => trim($this->input->post('subjectType')),
                    'course_id' => $this->input->post('subjectCourse'),
                    'sm_semester' => trim($this->input->post('subjectCourseSemOrYear')),
                    'sm_added_on' => date("Y-m-d H:i:s"),
                    'sm_added_by' => $this->session->userdata("adminData")["smember_id"],
                    'sm_updated_on' => date("Y-m-d H:i:s"),
                    'sm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                    'sm_paper_type' => $this->input->post('sm_paper_type'),
                    'sm_lecture_hr' => $this->input->post('sm_lecture_hr'),
                    'sm_tutorial_hr' => $this->input->post('sm_tutorial_hr'),
                    'sm_practical_hr' => $this->input->post('sm_practical_hr'),
                    'sm_theory_credit' => $this->input->post('sm_lecture_hr') + $this->input->post('sm_tutorial_hr'),
                    'sm_practical_credit' => $this->input->post('sm_practical_hr') / 2,
                    'sm_assessment_ct' => $this->input->post('sm_assessment_ct'),
                    'sm_assessment_ta' => $this->input->post('sm_assessment_ta'),
                    'sm_end_sem_theory' => $this->input->post('sm_end_sem_theory'),
                    'sm_end_sem_practical' => $this->input->post('sm_end_sem_practical'),
                    'sm_syllabus_file' => $subjectSyllabusFileWithPath
                );
                if ($this->SubjectManagement->updateSubjectInfo($subjectInfo)) {
                    $this->session->set_flashdata('successMessage', 'Subject Update Successfully.');
                    redirect("admin/Subject");
                } else {
                    $this->session->set_flashdata('errorMessage', 'An Error Occured While Updating Subject. Try Later.');
                    redirect(current_url());
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function toggleSubjectStatus($sm_id, $toUpdateStatus) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectUpdateData = array(
                'sm_id' => $sm_id,
                'sm_updated_on' => date("Y-m-d H:i:s"),
                'sm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'sm_active_status' => $toUpdateStatus
            );
            if ($this->SubjectManagement->updateSubjectInfo($subjectUpdateData)) {
                $this->session->set_flashdata('successMessage', 'Subject Status Updated Successfully.');
                redirect("admin/Subject");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Updating Subject Status. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function deleteSubject($sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectUpdateData = array(
                'sm_id' => $sm_id,
                'sm_updated_on' => date("Y-m-d H:i:s"),
                'sm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'sm_delete_status' => 'T'
            );
            if ($this->SubjectManagement->updateSubjectInfo($subjectUpdateData)) {
                $this->session->set_flashdata('successMessage', 'Subject Deleted Successfully.');
                redirect("admin/Subject");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Subject. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectsForMultipleDropDown() {
        $course_id = $_POST['course_id'];
        $course_info = $this->CourseManagement->getCoursesBy($course_id)->result();
        $subject_info = $this->SubjectManagement->getAllActiveNonDeletedSubjects()->result();
        if (sizeof($course_info)) {
            $semOrYear = "";
            $thisCourseInfo = $course_info[0];
            if ($thisCourseInfo->course_time_mgmt_flag == "S") {
                $semOrYear = "Semester";
            } else if ($thisCourseInfo->course_time_mgmt_flag == "Y") {
                $semOrYear = "Year";
            } else if ($thisCourseInfo->course_time_mgmt_flag == "Y") {
                $semOrYear = "Trimester";
            }
            if (sizeof($subject_info)) {
                $options = "";
                $thisSubjectSemester = 0;
                for ($i = 0; $i < sizeof($subject_info); $i++) {
                    $thisSubjectInfo = $subject_info[$i];
                    if ($thisSubjectSemester == 0) {
                        $thisSubjectSemester = $thisSubjectInfo->sm_semester;
                        $options .= "<optgroup label='" . stripslashes($thisSubjectInfo->course_name) . "-" . $thisSubjectSemester . " " . $semOrYear . "'>";
                        $options .= "<option value=" . $thisSubjectInfo->sm_id . ">" . stripslashes($thisSubjectInfo->sm_code) . "-" . stripslashes($thisSubjectInfo->sm_name) . "</option>";
                    } else {
                        if ($thisSubjectSemester == $thisSubjectInfo->sm_semester) {
                            $thisSubjectSemester = $thisSubjectInfo->sm_semester;
                            $options .= "<option value=" . $thisSubjectInfo->sm_id . ">" . stripslashes($thisSubjectInfo->sm_code) . "-" . stripslashes($thisSubjectInfo->sm_name) . "</option>";
                        } else {
                            $thisSubjectSemester = $thisSubjectInfo->sm_semester;
                            $options .= "</optgroup>";
                            $options .= "<optgroup label='" . stripslashes($thisSubjectInfo->course_name) . "-" . $thisSubjectSemester . " " . $semOrYear . "'>";
                            $options .= "<option value=" . $thisSubjectInfo->sm_id . ">" . stripslashes($thisSubjectInfo->sm_code) . "-" . stripslashes($thisSubjectInfo->sm_name) . "</option>";
                        }
                    }
                }
            } else {
                $options = "<option value='0' disabled>No Subject Are Updated In This Course</option>";
            }
        } else {
            $options = "<option value='0' disabled>The Course You Selected Is No Longer Available</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'subject_list' => $options
        );
        echo json_encode($responseData);
    }

    public function getCourseBySubjectForDropDown() {
        $sm_id = $_POST['subject_id'];
        $subject_info = $this->SubjectManagement->getSubjectInfoBy($sm_id)->result();
        if (sizeof($subject_info)) {
            $options = "<option value=''>Select Course</option>";
            for ($i = 0; $i < sizeof($subject_info); $i++) {
                $options .= "<option value=" . $subject_info[$i]->course_id . " selected>" . stripslashes($subject_info[$i]->course_name) . "</option>";
            }
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'courses_avail' => sizeof($subject_info),
                'course_list' => $options
            );
        } else {
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'courses_avail' => 0,
                'course_list' => array()
            );
        }
        echo json_encode($responseData);
    }

    /* Functions For Sets */

    public function sets() {
        if ($this->sessionvalidator->isLoggedIn() && $this->sessionvalidator->isAccessGranted()) {
            $allSubjectSetInfo = array();
            $allSubjectSets = $this->SubjectManagement->getAllSubjectSets()->result();
            if (sizeof($allSubjectSets)) {
                foreach ($allSubjectSets as $set) {
                    $subSetAndSubjectInfo = array();
                    $subjectSubSetInfo = $this->SubjectManagement->getAllSubjectSubSetsBy($set->ssm_id)->result();
                    if (sizeof($subjectSubSetInfo)) {
                        foreach ($subjectSubSetInfo as $subSet) {
                            $thisSubSetInfo = array(
                                'sssm_id' => $subSet->sssm_id,
                                'subject_id' => $subSet->sm_id,
                                'subject_code' => addslashes($subSet->sm_code),
                                'subject_name' => addslashes($subSet->sm_name)
                            );
                            array_push($subSetAndSubjectInfo, $thisSubSetInfo);
                        }
                    }
                    $thisSetInfo = array(
                        'set_id' => $set->ssm_id,
                        'set_name' => addslashes($set->ssm_name),
                        'set_under_course' => addslashes($set->course_name),
                        'set_active_status' => $set->ssm_active_status,
                        'set_delete_status' => $set->ssm_delete_status,
                        'set_created_by' => $set->addedByAdmin,
                        'set_created_on' => date("d-m-Y h:i:s A", strtotime($set->ssm_added_on)),
                        'set_updated_by' => $set->updatedByAdmin,
                        'set_updated_on' => date("d-m-Y h:i:s A", strtotime($set->ssm_updated_on)),
                        'set_subjects' => $subSetAndSubjectInfo
                    );
                    array_push($allSubjectSetInfo, $thisSetInfo);
                }
            }
            $viewData['allSubjectSets'] = $allSubjectSetInfo;
            $this->load->view('admin/academics/subjectSets', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function createSet() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $this->load->view('admin/academics/createSubjectSet', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function saveNewSubjectSet() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $this->form_validation->set_rules('setName', 'Set Name', 'required|trim', array('required' => 'Set Name Is Required.'));
            $this->form_validation->set_rules('setCourse', 'Course', 'required|trim', array('required' => 'Please Select A Course.'));
            $subjectSelection = $this->input->post('setSubjects');
            if (is_array($subjectSelection)) {
                $isSubjectSelected = (sizeof($subjectSelection)) ? 1 : 0;
            } else {
                $isSubjectSelected = 0;
            }
            $setQueryByName = $this->SubjectManagement->getSubjectSetInfoByName(trim($this->input->post('setName')));
            $setInfoByName = $setQueryByName->result();
            if ($this->form_validation->run() == FALSE) {
                $this->createSet();
            } else if (!$isSubjectSelected) {
                $this->session->set_flashdata('errorMessage', "At Least One Subject Should Be Selected While Creating A Subject Set.");
                $this->createSet();
            } else if (sizeof($setInfoByName)) {
                $this->session->set_flashdata('errorMessage', "A Subject Set With This Name (" . trim($this->input->post('setName')) . ") Already Exits. Please Choose A Different Name.");
                $this->createSet();
            } else {
                $subSetInfo = array();
                $newSetInfo = array(
                    'ssm_name' => addslashes(trim($this->input->post('setName'))),
                    'course_id' => trim($this->input->post('setCourse')),
                    'ssm_added_by' => $this->session->userdata("adminData")["smember_id"],
                    'ssm_added_on' => date("Y-m-d H:i:s"),
                    'ssm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                    'ssm_updated_on' => date("Y-m-d H:i:s"),
                );
                foreach ($subjectSelection as $setSubjects) {
                    $thisSubSetInfo = array(
                        'ssm_id' => '',
                        'sm_id' => $setSubjects
                    );
                    array_push($subSetInfo, $thisSubSetInfo);
                }
                $this->db->trans_start();
                $set_id = $this->SubjectManagement->createNewSubjectSet($newSetInfo);
                if ($set_id) {
                    for ($i = 0; $i < sizeof($subSetInfo); $i++) {
                        $subSetInfo[$i]['ssm_id'] = $set_id;
                    }
                    if ($this->SubjectManagement->createNewSubjectSubSetMulti($subSetInfo)) {
                        $this->db->trans_complete();
                        $this->session->set_flashdata('successMessage', 'Subject Set Created Successfully.');
                        redirect("admin/Subject/sets");
                    }
                } else {
                    $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Creating Subject Set. Try Later.');
                    redirect(current_url());
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function toggleSubjectSetStatus($sm_id, $toUpdateStatus) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectSetUpdateData = array(
                'ssm_id' => $sm_id,
                'ssm_updated_on' => date("Y-m-d H:i:s"),
                'ssm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'ssm_active_status' => $toUpdateStatus
            );
            if ($this->SubjectManagement->updateSubjectSetInfo($subjectSetUpdateData)) {
                $this->session->set_flashdata('successMessage', 'Subject Set Status Updated Successfully.');
                redirect("admin/Subject/sets");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Updating Subject Set Status. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function deleteSubjectSet($sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectSetUpdateData = array(
                'ssm_id' => $sm_id,
                'ssm_updated_on' => date("Y-m-d H:i:s"),
                'ssm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'ssm_delete_status' => 'T'
            );
            if ($this->SubjectManagement->updateSubjectSetInfo($subjectSetUpdateData)) {
                $this->session->set_flashdata('successMessage', 'Subject Set Deleted Successfully.');
                redirect("admin/Subject/sets");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Subject Set. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function undoDeleteSubjectSet($sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectSetUpdateData = array(
                'ssm_id' => $sm_id,
                'ssm_updated_on' => date("Y-m-d H:i:s"),
                'ssm_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'ssm_delete_status' => 'F'
            );
            if ($this->SubjectManagement->updateSubjectSetInfo($subjectSetUpdateData)) {
                $this->session->set_flashdata('successMessage', 'Subject Set Recovered Successfully.');
                redirect("admin/Subject/sets");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Recovering Subject Set. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSetsByCourseForDropDown() {
        $course_id = $_POST['course_id'];
        $set_info = $this->SubjectManagement->getSubjectSetInfoByCourse($course_id)->result();
        if (sizeof($set_info)) {
            $options = "<option value=''>Select Subject Set</option>";
            for ($i = 0; $i < (sizeof($set_info)); $i++) {
                $options .= "<option value=" . $set_info[$i]->ssm_id . ">" . $set_info[$i]->ssm_name . "</option>";
            }
        } else {
            $options = "<option value=''>No Set(s) Are Available</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'set_list' => $options
        );
        echo json_encode($responseData);
    }

    public function getSetsByCourseForDropDownSelected() {
        $course_id = $_POST['course_id'];
        $set = $_POST['set'];
        $set_info = $this->SubjectManagement->getSubjectSetInfoByCourse($course_id)->result();
        if (sizeof($set_info)) {
            $options = "<option value=''>Select Subject Set</option>";
            for ($i = 0; $i < (sizeof($set_info)); $i++) {
                $selected = ($set == $set_info[$i]->ssm_id) ? "selected" : "";
                $options .= "<option value=" . $set_info[$i]->ssm_id . " " . $selected . ">" . $set_info[$i]->ssm_name . "</option>";
            }
        } else {
            $options = "<option value=''>No Set(s) Are Available</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'set_list' => $options
        );
        echo json_encode($responseData);
    }

    public function getSubjectInfoOfSets() {
        $set_id = $_POST['set_id'];
        $subject_info = $this->SubjectManagement->getAllSubjectSubSetsBy($set_id)->result();
        $subjects = array();
        if (sizeof($subject_info)) {
            for ($i = 0; $i < (sizeof($subject_info)); $i++) {
                array_push($subjects, array(
                    'subject_id' => $subject_info[$i]->sm_id,
                    'subject_name' => stripslashes($subject_info[$i]->sm_name),
                    'subject_code' => stripslashes($subject_info[$i]->sm_code)
                ));
            }
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'subject_list' => $subjects,
                'available_subjects' => sizeof($subject_info),
                'message' => 'Subjects Found.'
            );
        } else {
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'subject_list' => $subjects,
                'available_subjects' => 0,
                'message' => 'No Subjects Found In The Selected Set.'
            );
        }

        echo json_encode($responseData);
    }

    /* Functions For Student-Subject Allocation */

    public function studentSubjectAllotment() {
        if ($this->sessionvalidator->isLoggedIn() && $this->sessionvalidator->isAccessGranted()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['sessions'] = $this->SessionManagement->getNonDeletedActiveSessions(array('C', 'N'))->result();
            $this->load->view('admin/academics/studentSubjectAllot', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function saveNewAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $selectedStudents = $this->input->post('selectedStudents');
            $allotmentData = array();
            $alreadyExistingStudentData = array();
            $subjectSelection = $this->input->post('setSubjects');
            if (is_array($subjectSelection)) {
                $isSubjectSelected = (sizeof($subjectSelection)) ? 1 : 0;
            } else {
                $isSubjectSelected = 0;
            }
            if (!$isSubjectSelected) {
                $this->session->set_flashdata('errorMessage', "At Least One Subject Should Be Selected While Alloting Subject.");
                $this->studentSubjectAllotment();
            } else {
                for ($i = 0; $i < sizeof($selectedStudents); $i++) {
                    for ($j = 0; $j < sizeof($subjectSelection); $j++) {
                        if (sizeof($this->StudentManagement->getStudentSubjectAllotmentDetailsBy('', $subjectSelection[$j], $this->input->post('subjectCourseSemOrYear'), $selectedStudents[$i], $this->input->post("session"))->result()) == 0) {
                            array_push($allotmentData, array(
                                'sm_id' => $subjectSelection[$j],
                                'tspi_id' => $selectedStudents[$i],
                                'ssa_session' => $this->input->post("session"),
                                'ssa_allotted_on' => date("Y-m-d H:i:s"),
                                'ssa_allotted_by' => $this->session->userdata("adminData")["smember_id"],
                                'ssa_semester' => trim($this->input->post('subjectCourseSemOrYear')),
                                'ssa_updated_on' => date("Y-m-d H:i:s"),
                                'ssa_updated_by' => $this->session->userdata("adminData")["smember_id"]
                            ));
                        } else {
                            //already existing data
                            array_push($alreadyExistingStudentData, array(
                                'sm_id' => $subjectSelection[$j],
                                'tspi_id' => $selectedStudents[$i],
                                'ssa_session' => $this->input->post("session"),
                                'ssa_allotted_on' => date("Y-m-d H:i:s"),
                                'ssa_allotted_by' => $this->session->userdata("adminData")["smember_id"],
                                'ssa_semester' => trim($this->input->post('subjectCourseSemOrYear')),
                                'ssa_updated_on' => date("Y-m-d H:i:s"),
                                'ssa_updated_by' => $this->session->userdata("adminData")["smember_id"]
                            ));
                        }
                    }
                }
                if (sizeof($allotmentData)) {
                    $this->db->trans_start();
                    if ($this->SubjectManagement->createNewSubjectStudentAllotmentMulti($allotmentData)) {
                        $this->db->trans_complete();
                        $this->session->set_flashdata('successMessage', 'Subject Allotted To Student(s) Successfully.');
                        redirect("admin/Subject/studentSubjectAllotment");
                    } else {
                        $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Assigning Subject To Student. Try Later.');
                        redirect(current_url());
                    }
                } else {
                    $this->session->set_flashdata('errorMessage', 'Allotment Data Already Exists.');
                    redirect("admin/Subject/studentSubjectAllotment");
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function updateAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $tspi_id = $this->input->post("tspi_id");
            $current_subject = $this->input->post("current_subject");
            $safeToUpdateStudentSubject = $this->SubjectManagement->checkSafeToUpdateStudentSubject($tspi_id, $current_subject)->result();
            $allotmentUpdateData = array(
                'ssa_id' => $this->input->post('allot_id'),
                'sm_id' => $this->input->post('subjectMod'),
                'ssa_updated_on' => date("Y-m-d H:i:s"),
                'ssa_updated_by' => $this->session->userdata("adminData")["smember_id"]
            );
            if (sizeof($safeToUpdateStudentSubject)) {
                $this->session->set_flashdata('errorMessage', 'Student Allotment Has Been Already Done With Teacher And Subject Cannot Update Subject. Try Deleing Allotment.');
                redirect('admin/Subject/viewExistingAllotment');
            } else {
                if (sizeof($this->StudentManagement->getStudentSubjectAllotmentDetailsBy($this->input->post('allot_id'), $this->input->post('subjectMod'))->result()) == 0) {
                    if ($this->SubjectManagement->updateStudentSubjectAllotInfo($allotmentUpdateData)) {
                        $this->session->set_flashdata('successMessage', 'Allotment Info Updated Successfully.');
                        redirect("admin/Subject/viewExistingAllotment");
                    } else {
                        $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Updating Allotment Info. Try Later.');
                        redirect(current_url());
                    }
                } else {
                    $this->session->set_flashdata('errorMessage', 'Subject Already Alloted, Try Allocating Different Subject.');
                    redirect("admin/Subject/viewExistingAllotment");
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function viewExistingAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['selectedSemOrYear'] = "";
            $viewData['selectedSubject'] = "";
            $viewData['allotmentData'] = array();
            if (isset($_POST['filterSubmitBtn'])) {
                $reqCourse = trim($this->input->post("subjectCourse"));
                $reqSemOrYear = trim($this->input->post("subjectCourseSemOrYear"));
                $reqSub = trim($this->input->post("subjects"));
                $viewData['selectedSemOrYear'] = $reqSemOrYear;
                $viewData['selectedSubject'] = $reqSub;
                $viewData['selectedCourse'] = $reqCourse;
                $viewData['allotmentData'] = $this->SubjectManagement->getAllottedSubjectInfoBy($reqCourse, $reqSemOrYear, $reqSub)->result();
                $this->load->view('admin/academics/allottedSubjects', $viewData);
            } else {
                $this->load->view('admin/academics/allottedSubjects', $viewData);
            }
        } else {
            redirect("admin/");
        }
    }

    public function deleteAllotment($ssa_id, $tspi_id, $sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $safeToUpdateStudentSubject = $this->SubjectManagement->checkSafeToUpdateStudentSubject($tspi_id, $sm_id)->result();
            if (sizeof($safeToUpdateStudentSubject)) {
                $this->db->trans_start();
                if ($this->SubjectManagement->deleteStudentSubjectAllotInfo($ssa_id) && $this->SubjectManagement->deleteStudentTeacherAllotInfo($safeToUpdateStudentSubject[0]->stta_id)) {
                    $this->session->set_flashdata('successMessage', 'Student-Subject Allotment & Teacher-Student Allotment Info Deleted Successfully.');
                    $this->db->trans_complete();
                    redirect("admin/Subject/viewExistingAllotment");
                } else {
                    $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Student-Subject Allotment Info. Try Later.');
                    redirect("admin/Subject/viewExistingAllotment");
                }
            } else {
                if ($this->SubjectManagement->deleteStudentSubjectAllotInfo($ssa_id)) {
                    $this->session->set_flashdata('successMessage', 'Student-Subject Allotment Info Deleted Successfully.');
                    redirect("admin/Subject/viewExistingAllotment");
                } else {
                    $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Student-Subject Allotment Info. Try Later.');
                    redirect("admin/Subject/viewExistingAllotment");
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectAllotmentFullInfo() {
        $allot_id = $_POST['allot_id'];
        $allot_info = $this->SubjectManagement->getAllottedSubjectInfoById($allot_id)->result()[0];
        if ($allot_info->tspi_gender == "M") {
            $gender = "<i class='fa fa-male'></i>|Male";
        } else if ($allot_info->tspi_gender == "F") {
            $gender = "<i class='fa fa-female'></i>|Female";
        } else {
            $gender = "<i class='fa fa-transgender'></i>|Transgender";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'stu_id' => $allot_info->tspi_id,
            'stu_name' => stripslashes($allot_info->tspi_name),
            'stu_gender' => $gender,
            'stu_roll_no' => stripslashes($allot_info->tspi_rollNumber),
            'stu_dob' => date('d-m-Y', strtotime($allot_info->tspi_dob)),
            'stu_course' => stripslashes($allot_info->course_name),
            'stu_session' => stripslashes($allot_info->session_name),
            'stu_entry_type' => stripslashes($allot_info->tcsm_course_type),
            'stu_section' => $allot_info->tsssi_section,
            'stu_semester' => $allot_info->tsssi_semester,
            'course' => $allot_info->course_name,
            'course_id' => $allot_info->course_id,
            'subject_id' => $allot_info->sm_id,
            'subject_name' => stripslashes($allot_info->sm_name),
            'allot_id' => $allot_info->ssa_id
        );
        echo json_encode($responseData);
    }

    /* Request Handlers For Teacher Student Allotment */

    public function teacherStudentAllotment() {
        if ($this->sessionvalidator->isLoggedIn() && $this->sessionvalidator->isAccessGranted()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['sessions'] = $this->SessionManagement->getNonDeletedActiveSessions(array('C', 'N'))->result();
            $viewData['departments'] = $this->DepartmentManagement->getActiveNonDeletedDepartments()->result();
            $viewData['designation_types'] = $this->DesignationManagement->getAllDesignationCategories()->result();
            $this->load->view('admin/academics/teacherSubjectStudentAllot', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function saveNewSSTAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $selectedStudents = $this->input->post('selectedStudents');
            $subjectTeacherAllomentArray = array(
                'smember_id' => $this->input->post('emp'),
                'sm_id' => $this->input->post('subject'),
                'sta_allotted_on' => date("Y-m-d H:i:s"),
                'sta_allotted_by' => $this->session->userdata("adminData")["smember_id"],
                'session_id' => trim($this->input->post('session')),
            );
            $sta_id = $this->SubjectManagement->saveSubjectTeacherAllotmentDetails($subjectTeacherAllomentArray);
            $studentTeacherAllotmentData = array();
            for ($i = 0; $i < sizeof($selectedStudents); $i++) {
                array_push($studentTeacherAllotmentData, array(
                    'tspi_id' => $selectedStudents[$i],
                    'sta_id' => $sta_id,
                    'stta_allotted_on' => date("Y-m-d H:i:s"),
                    'stta_allotted_by' => $this->session->userdata("adminData")["smember_id"],
                    'stta_updated_on' => date("Y-m-d H:i:s"),
                    'stta_updated_by' => $this->session->userdata("adminData")["smember_id"]
                ));
            }
            if ($this->SubjectManagement->createTeacherStudentAllotment($studentTeacherAllotmentData)) {
                $this->session->set_flashdata('successMessage', 'Student Alloted To Teacher Successfully.');
                redirect("admin/Subject/teacherStudentAllotment");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Assigning Subject And Student(s) To Teacher. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    /* Request Handlers For Subject Type */

    public function subjectTypes() {
        if ($this->sessionvalidator->isLoggedIn() && $this->sessionvalidator->isAccessGranted()) {
            $viewData['allSubjectsTypes'] = $this->SubjectManagement->getAllSubjectTypes()->result();
            $this->load->view('admin/academics/subjectTypes', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function createSubjectType() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $this->load->view("admin/academics/createSubjectType");
        } else {
            redirect('admin/');
        }
    }

    public function saveNewSubjectType() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $this->form_validation->set_rules('subjectTypeName', 'Subject Type Name', 'required|trim', array('required' => 'Subject Type Name Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectTypeDescription', 'Subject Type Description', 'required|trim', array('required' => 'Subject Type Description Can Not Be Blank.'));
            $queryBySubjectTypeName = $this->SubjectManagement->getSubjectTypeInfoByName(trim($this->input->post('subjectTypeName')));
            $subjectTypeInfoByName = $queryBySubjectTypeName->result();
            if ($this->form_validation->run() == FALSE) {
                $this->createSubjectType();
            } else if (sizeof($subjectTypeInfoByName)) {
                $this->session->set_flashdata('errorMessage', "A Subject Type With This Name (" . trim($this->input->post('subjectTypeName')) . ") Already Exits. Please Choose A Different Name.");
                $this->createSubjectType();
            } else {
                $newSubjectInfo = array(
                    'st_name' => addslashes(trim($this->input->post('subjectTypeName'))),
                    'st_description' => addslashes(trim($this->input->post('subjectTypeDescription'))),
                    'st_added_on' => date("Y-m-d H:i:s"),
                    'st_added_by' => $this->session->userdata("adminData")["smember_id"],
                    'st_updated_on' => date("Y-m-d H:i:s"),
                    'st_updated_by' => $this->session->userdata("adminData")["smember_id"]
                );
                if ($this->SubjectManagement->createNewSubjectType($newSubjectInfo)) {
                    $this->session->set_flashdata('successMessage', 'Subject Type Created Successfully.');
                    redirect("admin/Subject/subjectTypes");
                } else {
                    $this->session->set_flashdata('errorMessage', 'An Error Occured While Creating Subject Type. Try Later.');
                    redirect(current_url());
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function editSubjectType($subject_type_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData["subjectTypeInfo"] = $this->SubjectManagement->getSubjectTypeInfoBy($subject_type_id)->result()[0];
            $this->load->view("admin/academics/editSubjectType", $viewData);
        } else {
            redirect('admin/');
        }
    }

    public function updateNewSubjectType() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $st_id = $this->input->post("st_id");
            $this->form_validation->set_rules('subjectTypeName', 'Subject Type Name', 'required|trim', array('required' => 'Subject Type Name Can Not Be Blank.'));
            $this->form_validation->set_rules('subjectTypeDescription', 'Subject Type Description', 'required|trim', array('required' => 'Subject Type Description Can Not Be Blank.'));
            $queryBySubjectTypeName = $this->SubjectManagement->getSubjectTypeInfoByName(trim($this->input->post('subjectTypeName')));
            $subjectTypeInfoByName = $queryBySubjectTypeName->result();
            if ($this->form_validation->run() == FALSE) {
                $this->editSubjectType($st_id);
            } else if (sizeof($subjectTypeInfoByName)) {
                $this->session->set_flashdata('errorMessage', "A Subject Type With This Name (" . trim($this->input->post('subjectTypeName')) . ") Already Exits. Please Choose A Different Name.");
                $this->editSubjectType($st_id);
            } else {
                $newSubjectInfo = array(
                    'st_name' => addslashes(trim($this->input->post('subjectTypeName'))),
                    'st_description' => addslashes(trim($this->input->post('subjectTypeDescription'))),
                    'st_updated_on' => date("Y-m-d H:i:s"),
                    'st_updated_by' => $this->session->userdata("adminData")["smember_id"]
                );
                if ($this->SubjectManagement->updateSubjectTypeInfo($newSubjectInfo, $st_id)) {
                    $this->session->set_flashdata('successMessage', 'Subject Type Edited Successfully.');
                    redirect("admin/Subject/subjectTypes");
                } else {
                    $this->session->set_flashdata('errorMessage', 'An Error Occured While Editing Subject Type. Try Later.');
                    redirect(current_url());
                }
            }
        } else {
            redirect("admin/");
        }
    }

    public function toggleSubjectTypeStatus($st_id, $toUpdateStatus) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectTypeUpdateData = array(
                'st_updated_on' => date("Y-m-d H:i:s"),
                'st_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'st_active_status' => $toUpdateStatus
            );
            if ($this->SubjectManagement->updateSubjectTypeInfo($subjectTypeUpdateData, $st_id)) {
                $this->session->set_flashdata('successMessage', 'Subject Type Status Updated Successfully.');
                redirect("admin/Subject/subjectTypes");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Updating Subject Type Status. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function deleteSubjectType($sm_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectUpdateData = array(
                'st_updated_on' => date("Y-m-d H:i:s"),
                'st_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'st_delete_status' => 'T'
            );
            if ($this->SubjectManagement->updateSubjectTypeInfo($subjectUpdateData, $sm_id)) {
                $this->session->set_flashdata('successMessage', 'Subject Type Deleted Successfully.');
                redirect("admin/Subject/subjectTypes");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Subject Type. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function undoDeleteSubjectType($st_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $subjectUpdateData = array(
                'st_updated_on' => date("Y-m-d H:i:s"),
                'st_updated_by' => $this->session->userdata("adminData")["smember_id"],
                'st_delete_status' => 'F'
            );
            if ($this->SubjectManagement->updateSubjectTypeInfo($subjectUpdateData, $st_id)) {
                $this->session->set_flashdata('successMessage', 'Subject Type Recovered Successfully.');
                redirect("admin/Subject/subjectTypes");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Recovering Subject Type. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectsForDropDown() {
        $subject_id = $_POST['subject'];
        $subject_info = $this->SubjectManagement->getAllActiveNonDeletedSubjects()->result();
        if (sizeof($subject_info)) {
            $options = "<option value=''>Select Subject</option>";
            for ($i = 0; $i < (sizeof($subject_info)); $i++) {
                $selected = ($subject_id == $subject_info[$i]->sm_id) ? "selected" : "";
                $options .= "<option " . $selected . " value=" . $subject_info[$i]->sm_id . ">" . $subject_info[$i]->sm_name . "</option>";
            }
        } else {
            $options = "<option value=''>No Subject(s) Are Available</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'subject_list' => $options
        );
        echo json_encode($responseData);
    }

    /* Request Handlers For Teacher-Subject Allotment Module */

    public function viewTeachersExistingAllotmentDetails() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['sessions'] = $this->SessionManagement->getNonDeletedActiveSessions()->result();
            $viewData['departments'] = $this->DepartmentManagement->getActiveNonDeletedDepartments()->result();
            $viewData['designation_types'] = $this->DesignationManagement->getAllDesignationCategories()->result();
            $viewData['selectedDept'] = "";
            $viewData['selectedSubDept'] = "";
            $viewData['selectedDesigType'] = "";
            $viewData['selectedEmp'] = "";
            $viewData['selectedSession'] = "";
            $viewData['selectedCourse'] = "";
            $viewData['selectedSemester'] = "";
            $viewData['selectedSubject'] = "";
            $viewData['allotmentData'] = array();
            if (isset($_POST['filterSubmitBtn'])) {
                $reqCourse = trim($this->input->post("subjectCourse"));
                $reqSemester = trim($this->input->post("subjectCourseSemOrYear"));
                $reqSubject = trim($this->input->post("subject"));
                $reqDept = trim($this->input->post("dept"));
                $reqSubDept = trim($this->input->post("subDept"));
                $reqDesigType = trim($this->input->post("desig_type"));
                $reqEmp = trim($this->input->post("emp"));
                $reqSession = trim($this->input->post("session"));
                $viewData['selectedDept'] = $reqDept;
                $viewData['selectedSubDept'] = $reqSubDept;
                $viewData['selectedDesigType'] = $reqDesigType;
                $viewData['selectedEmp'] = $reqEmp;
                $viewData['selectedSession'] = $reqSession;
                $viewData['selectedCourse'] = $reqCourse;
                $viewData['selectedSemester'] = $reqSemester;
                $viewData['selectedSubject'] = $reqSubject;
                $viewData['allotmentData'] = $this->SubjectManagement->getSubjectTeacherAllotementDetails('', $reqDept, $reqSubDept, $reqCourse, $reqDesigType, $reqEmp, $reqSemester, $reqSubject, $reqSession)->result();
                $this->load->view('admin/academics/allotedSubjectsToTeacher', $viewData);
            } else {
                $viewData['allotmentData'] = $this->SubjectManagement->getSubjectTeacherAllotementDetails()->result();
                $this->load->view('admin/academics/allotedSubjectsToTeacher', $viewData);
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectTeacherAllotmentFullInfo() {
        $sta_id = $_POST['sta_id'];
        $allot_info = $this->SubjectManagement->getSubjectTeacherAllotementDetails($sta_id)->result()[0];
        if ($allot_info->tprfl_gender == "M") {
            $gender = "<i class='fa fa-male'></i>|Male";
        } else if ($allot_info->tprfl_gender == "F") {
            $gender = "<i class='fa fa-female'></i>|Female";
        } else {
            $gender = "<i class='fa fa-transgender'></i>|Transgender";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'sta_id' => $allot_info->sta_id,
            'tprfl_name' => stripslashes($allot_info->tprfl_firstname) . " " . stripslashes($allot_info->tprfl_lastname),
            'tprfl_gender' => $gender,
            'course_name' => stripslashes($allot_info->course_name),
            'smember_id' => $allot_info->smember_id,
            'alloted_subject' => $allot_info->sm_name,
            'subject_id' => $allot_info->sm_id,
            'session_id' => $allot_info->subject_tech_session
        );
        echo json_encode($responseData);
    }

    public function getSubjectTeacherAllotmentDetails() {
        $smember_id = $_POST['smember_id'];
        $session_id = $_POST['session_id'];
        $subject_id = $_POST['subject_id'];
        $course_id = $_POST['course_id'];
        $allotmentDetails = $this->SubjectManagement->getSubjectTeacherAllotementDetails('', '', '', $course_id, '', $smember_id, '', $subject_id, $session_id)->result();
        if (sizeof($allotmentDetails)) {
            $allot_info = $allotmentDetails[0];
            if ($allot_info->tprfl_gender == "M") {
                $gender = "<i class='fa fa-male'></i>|Male";
            } else if ($allot_info->tprfl_gender == "F") {
                $gender = "<i class='fa fa-female'></i>|Female";
            } else {
                $gender = "<i class='fa fa-transgender'></i>|Transgender";
            }
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'allotment_avail' => 1,
                'sta_id' => $allot_info->sta_id,
                'tprfl_name' => stripslashes($allot_info->tprfl_firstname) . " " . stripslashes($allot_info->tprfl_lastname),
                'tprfl_gender' => $gender,
                'course_name' => stripslashes($allot_info->course_name),
                'smember_id' => $allot_info->smember_id,
                'alloted_subject' => $allot_info->sm_name,
                'subject_id' => $allot_info->sm_id,
                'session_id' => $allot_info->subject_tech_session
            );
        } else {
            $responseData = array(
                'csrfName' => $this->security->get_csrf_token_name(),
                'csrfHash' => $this->security->get_csrf_hash(),
                'allotment_avail' => 0,
                'sta_id' => "",
                'tprfl_name' => "",
                'tprfl_gender' => "",
                'course_name' => "",
                'smember_id' => "",
                'alloted_subject' => "",
                'subject_id' => "",
                'session_id' => ""
            );
        }

        echo json_encode($responseData);
    }

    public function updateSubjectFacultyAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $emp = $this->input->post("emp_mod");
            $sta_id = $this->input->post("sta_id");
            $subjectTeacherAllotmentArray = array('smember_id' => $emp);
            if ($this->SubjectManagement->updateSubjectTeacherAllotementDetails($subjectTeacherAllotmentArray, $sta_id)) {
                $this->session->set_flashdata('successMessage', 'New Teacher Updated Successfully.');
                redirect("admin/Subject/viewTeachersExistingAllotmentDetails");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Updating Teacher. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function deleteStudentTeacherAllotment($stta_id) {
        if ($this->sessionvalidator->isLoggedIn()) {
            $this->db->trans_start();
            if ($this->SubjectManagement->deleteStudentTeacherAllotInfo($stta_id)) {
                $this->session->set_flashdata('successMessage', 'Teacher-Student Allotment Info Deleted Successfully.');
                $this->db->trans_complete();
                redirect("admin/Subject/viewTeachersExistingAllotmentDetails");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Deleting Student-Subject Allotment Info. Try Later.');
                redirect("admin/Subject/viewTeachersExistingAllotmentDetails");
            }
        } else {
            redirect("admin/");
        }
    }

    public function saveNewStudentsToExistingSubjectTeacherAllotment() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $selectedStudents = $this->input->post('selectedStudents');
            $sta_id = $this->input->post("staid");
            $studentTeacherAllotmentData = array();
            for ($i = 0; $i < sizeof($selectedStudents); $i++) {
                array_push($studentTeacherAllotmentData, array(
                    'tspi_id' => $selectedStudents[$i],
                    'sta_id' => $sta_id,
                    'stta_allotted_on' => date("Y-m-d H:i:s"),
                    'stta_allotted_by' => $this->session->userdata("adminData")["smember_id"],
                    'stta_updated_on' => date("Y-m-d H:i:s"),
                    'stta_updated_by' => $this->session->userdata("adminData")["smember_id"]
                ));
            }
            if ($this->SubjectManagement->createTeacherStudentAllotment($studentTeacherAllotmentData)) {
                $this->session->set_flashdata('successMessage', 'Student Alloted To Teacher Successfully.');
                redirect("admin/Subject/viewTeachersExistingAllotmentDetails");
            } else {
                $this->session->set_flashdata('errorMessage', 'Some Error Occurred While Assigning Student(s) To Teacher. Try Later.');
                redirect(current_url());
            }
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectBySessionForDropdown() {
        $session_id = $_POST['session_id'];
        $sm_id = $this->input->post("sm_id");
        $query = $this->SubjectManagement->getDistinctSubjectAllotedInSession($session_id);
        $data = $query->result();
        $options = "<option value=''>Select Subject</option>";
        for ($i = 0; $i < (sizeof($data)); $i++) {
            $selected = ($sm_id == $data[$i]->sm_id) ? "selected" : "";
            $options .= "<option  " . $selected . " value=" . $data[$i]->sm_id . ">" . $data[$i]->sm_name . "-" . $data[$i]->sm_code . "</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'subject_list' => $options
        );
        echo json_encode($responseData);
    }

    public function creditBasedSubjectReport() {
        if ($this->sessionvalidator->isLoggedIn()) {
            $viewData['courses'] = $this->CourseManagement->getActiveAndNonDeletedCourses()->result();
            $viewData['allSubjects'] = array();
            $viewData['courseName'] = array();
            $viewData["selectedSem"] = 0;
            if (isset($_POST["filterTestBtn"])) {
                $viewData['courseName'] = $this->CourseManagement->getCoursesBy($this->input->post('subjectCourse'))->result();
                $viewData['allSubjects'] = $this->SubjectManagement->getNonDeletedActiveSubjectsByCourseSemester($this->input->post('subjectCourse'), $this->input->post('subjectCourseSemOrYear'))->result();
                $viewData["selectedSem"] = $this->input->post('subjectCourseSemOrYear');
            }
            $this->load->view('admin/academics/subjectReport', $viewData);
        } else {
            redirect("admin/");
        }
    }

    public function getSubjectsForDropDownUsingCourse() {
        $course_id = $_POST['course_id'];
        $subject_id = $_POST['subject'];
        $subject_info = $this->SubjectManagement->getNonDeletedActiveSubjectsByCourse($course_id)->result();
        if (sizeof($subject_info)) {
            $options = "<option value=''>Select Subject</option>";
            for ($i = 0; $i < (sizeof($subject_info)); $i++) {
                $selected = ($subject_id == $subject_info[$i]->sm_id) ? "selected" : "";
                $options .= "<option " . $selected . " value=" . $subject_info[$i]->sm_id . ">" . $subject_info[$i]->sm_name . "</option>";
            }
        } else {
            $options = "<option value=''>No Subject(s) Are Available</option>";
        }
        $responseData = array(
            'csrfName' => $this->security->get_csrf_token_name(),
            'csrfHash' => $this->security->get_csrf_hash(),
            'subject_list' => $options
        );
        echo json_encode($responseData);
    }

}

KBHT - 2023