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✏️ Editing: Homework_model.php

<?php

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

class Homework_model extends MY_model {

public function __construct() {
        parent::__construct();
        $this->current_session = $this->setting_model->getCurrentSession();
    }

public function add($data) {
        $this->db->trans_start(); # Starting Transaction
        $this->db->trans_strict(false); # See Note 01. If you wish can remove as well
        //=======================Code Start===========================
        if (isset($data["id"]) && $data["id"] > 0) {
            $this->db->where("id", $data["id"])->update("homework", $data);
            $message = UPDATE_RECORD_CONSTANT . " On homework id " . $data['id'];
            $action = "Update";
            $record_id = $insert_id = $data['id'];
            $this->log($message, $record_id, $action);
        } else {

$this->db->insert("homework", $data);
            $insert_id = $this->db->insert_id();
            $message = INSERT_RECORD_CONSTANT . " On homework id " . $insert_id;
            $action = "Insert";
            $record_id = $insert_id;
            $this->log($message, $record_id, $action);
        }
        //======================Code End==============================

$this->db->trans_complete(); # Completing transaction
        /* Optional */

if ($this->db->trans_status() === false) {
            # Something went wrong.
            $this->db->trans_rollback();
            return false;
        } else {
            return $insert_id;
        }
        // return $insert_id;
    }

public function get($id = null) {
        $class = $this->class_model->get();
        $carray = array();
        foreach ($class as $key => $value) {
            $carray[] = $value['id'];
            $sections = $this->section_model->getClassBySection($value['id']);

foreach ($sections as $sec => $secdata) {
                $section_array[] = $secdata['section_id'];
            }
        }

if (!empty($id)) {
            $this->db->select("`homework`.*,subject_group_subjects.subject_id,subject_group_subjects.id as `subject_group_subject_id`,subjects.name as subject_name,subject_groups.id as subject_groups_id,subject_groups.name,(select count(*) as total from submit_assignment where submit_assignment.homework_id=homework.id) as assignments");
            $this->db->join("classes", "classes.id = homework.class_id");
            $this->db->join("sections", "sections.id = homework.section_id");
            $this->db->join("subject_group_subjects", "subject_group_subjects.id = homework.subject_group_subject_id");
            $this->db->join("subjects", "subjects.id = subject_group_subjects.subject_id");

$this->db->join("subject_groups", "subject_group_subjects.subject_group_id=subject_groups.id");
            $this->db->where('homework.session_id', $this->current_session);
            $this->db->where("homework.id", $id);

$query = $this->db->get("homework");
            // $query = $this->db->where("id", $id)->get("homework");
            return $query->row_array();
        } else {

// $query = $this->db->select("homework.*,homework_evaluation.date,classes.class,sections.section,subjects.name")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join("subjects", "subjects.id = homework.subject_id", "left")->join("homework_evaluation", "homework.id = homework_evaluation.homework_id", "left")->group_by("homework.id")->get("homework");

$this->db->select("`homework`.*,classes.class,sections.section,subject_group_subjects.subject_id,subject_group_subjects.id as `subject_group_subject_id`,subjects.name as subject_name,subject_groups.id as subject_groups_id,subject_groups.name,(select count(*) as total from submit_assignment where submit_assignment.homework_id=homework.id) as assignments");
            $this->db->join("classes", "classes.id = homework.class_id");
            $this->db->join("sections", "sections.id = homework.section_id");
            $this->db->join("subject_group_subjects", "subject_group_subjects.id = homework.subject_group_subject_id");
            $this->db->join("subjects", "subjects.id = subject_group_subjects.subject_id");
            $this->db->join("subject_groups", "subject_group_subjects.subject_group_id=subject_groups.id");
            $this->db->where('homework.session_id', $this->current_session);
            if (!empty($carray)) {
                $this->db->where_in('classes.id', $carray);
            }
            if (!empty($section_array)) {
                $this->db->where_in('sections.id', $section_array);
            }
            $query = $this->db->get("homework");
            return $query->result_array();
        }
    }

public function get_homeworkDocById($homework_id) {

$this->datatables
                ->select('students.*,submit_assignment.docs,submit_assignment.message,submit_assignment.student_id')
                ->join('students','students.id=submit_assignment.student_id', 'inner')
                ->searchable('students.firstname')
                ->from('submit_assignment')
                ->where(array('submit_assignment.homework_id'=> $homework_id));
        return $this->datatables->generate('json');
      
    }
    
    public function get_homeworkDocByIdStdid($homework_id,$student_id) {
        $query = $this->db->select('students.*,submit_assignment.docs,submit_assignment.message')->from('submit_assignment')->join('students', 'students.id=submit_assignment.student_id', 'inner')->where(array('submit_assignment.homework_id'=> $homework_id,'submit_assignment.student_id'=>$student_id))->get();
        return $query->result_array();
    }
    
    public function search_homework($class_id, $section_id, $subject_group_id, $subject_id) {
        if ((!empty($class_id)) && (!empty($section_id)) && (!empty($subject_id)) && (!empty($subject_group_id))) {

$this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id, 'subject_groups.id' => $subject_group_id, 'subject_group_subjects.id' => $subject_id));
        } else if ((!empty($class_id)) && (!empty($section_id)) && (!empty($subject_group_id))) {

$this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id, 'subject_groups.id' => $subject_group_id));
        } else if ((!empty($class_id)) && (empty($section_id)) && (empty($subject_id))) {

$this->db->where(array('homework.class_id' => $class_id));
        } else if ((!empty($class_id)) && (!empty($section_id)) && (empty($subject_id))) {

$this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id));
        }

$this->db->select("`homework`.*,classes.class,sections.section,subject_group_subjects.subject_id,subject_group_subjects.id as `subject_group_subject_id`,subjects.name as subject_name,subject_groups.id as subject_groups_id,subject_groups.name,(select count(*) as total from submit_assignment where submit_assignment.homework_id=homework.id) as assignments");
        $this->db->join("classes", "classes.id = homework.class_id");
        $this->db->join("sections", "sections.id = homework.section_id");
        $this->db->join("subject_group_subjects", "subject_group_subjects.id = homework.subject_group_subject_id");
        $this->db->join("subjects", "subjects.id = subject_group_subjects.subject_id");
        $this->db->join("subject_groups", "subject_group_subjects.subject_group_id=subject_groups.id");
        $this->db->where('subject_groups.session_id', $this->current_session);
        $this->db->order_by('homework.homework_date', 'DESC');
        $query = $this->db->get("homework");
        return $query->result_array();
    }

public function search_dthomework($class_id, $section_id, $subject_group_id, $subject_id) {
        if ((!empty($class_id)) && (!empty($section_id)) && (!empty($subject_id)) && (!empty($subject_group_id))) {

$this->datatables->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id, 'subject_groups.id' => $subject_group_id, 'subject_group_subjects.id' => $subject_id));
        } else if ((!empty($class_id)) && (!empty($section_id)) && (!empty($subject_group_id))) {

$this->datatables->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id, 'subject_groups.id' => $subject_group_id));
        } else if ((!empty($class_id)) && (empty($section_id)) && (empty($subject_id))) {

$this->datatables->where(array('homework.class_id' => $class_id));
        } else if ((!empty($class_id)) && (!empty($section_id)) && (empty($subject_id))) {

$this->datatables->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id));
        }

$this->datatables->select('`homework`.*,classes.class,sections.section,subject_group_subjects.subject_id,subject_group_subjects.id as `subject_group_subject_id`,subjects.name as subject_name,subject_groups.id as subject_groups_id,subject_groups.name,(select count(*) as total from submit_assignment where submit_assignment.homework_id=homework.id) as assignments,staff.name as staff_name,staff.surname as staff_surname')
        ->searchable('classes.class,sections.section,subject_groups.name,subjects.name,homework_date,submit_date,evaluation_date,staff.name')
        ->join("classes", "classes.id = homework.class_id")
        ->join("sections", "sections.id = homework.section_id")
        ->join("subject_group_subjects", "subject_group_subjects.id = homework.subject_group_subject_id")
        ->join("subjects", "subjects.id = subject_group_subjects.subject_id")
        ->join("subject_groups", "subject_group_subjects.subject_group_id=subject_groups.id")
        ->join("staff","homework.created_by=staff.id")
        ->orderable('classes.class,sections.section,subject_groups.name,subjects.name,homework_date,submit_date,evaluation_date,staff.name')
        ->where('subject_groups.session_id', $this->current_session)           
        ->sort('homework.homework_date', 'DESC')
        ->from('homework');
        return $this->datatables->generate('json');

}

public function getRecord($id = null) {

$query = $this->db->select("homework.*,classes.class,sections.section,subjects.name,subject_groups.name as subject_group")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join('subject_group_subjects', 'homework.subject_group_subject_id=subject_group_subjects.id')->join("subjects", "subjects.id = subject_group_subjects.subject_id", "left")->join('subject_groups', 'subject_group_subjects.subject_group_id=subject_groups.id')->where("homework.id", $id)->get("homework");

return $query->row_array();
    }

public function getStudents($id) {
        $sql = "SELECT IFNULL(homework_evaluation.id,0) as homework_evaluation_id,student_session.*,students.firstname,students.middlename,students.lastname,students.admission_no from student_session inner JOIN (SELECT homework.id as homework_id,homework.class_id,homework.section_id,homework.session_id FROM `homework` WHERE id= " . $this->db->escape($id) . " ) as home_work on home_work.class_id=student_session.class_id and home_work.section_id=student_session.section_id and home_work.session_id=student_session.session_id inner join students on students.id=student_session.student_id and students.is_active='yes' left join homework_evaluation on homework_evaluation.student_session_id=student_session.id  and students.is_active='yes' and homework_evaluation.homework_id=" . $this->db->escape($id) . "   order by students.id desc";

// $sql = "select students.id,students.firstname,students.lastname,students.admission_no from students where students.id in (select student_session.student_id from student_session where student_session.class_id = " . $this->db->escape($class_id) . " and student_session.section_id = " . $this->db->escape($section_id) . " GROUP by student_session.student_id and student_session.session_id=$this->current_session) and students.is_active = 'yes'";
        $query = $this->db->query($sql);
        return $query->result_array();
    }

public function delete($id) {
        $this->db->trans_start(); # Starting Transaction
        $this->db->trans_strict(false); # See Note 01. If you wish can remove as well
        //=======================Code Start===========================
        $this->db->where("id", $id)->delete("homework");

$this->db->where("homework_id", $id)->delete("homework_evaluation");
        $this->db->where("homework_id", $id)->delete("submit_assignment");

$message = DELETE_RECORD_CONSTANT . " On homework id " . $id;
        $action = "Delete";
        $record_id = $id;
        $this->log($message, $record_id, $action);
        //======================Code End==============================
        $this->db->trans_complete(); # Completing transaction
        /* Optional */
        if ($this->db->trans_status() === false) {
            # Something went wrong.
            $this->db->trans_rollback();
            return false;
        } else {
            //return $return_value;
        }
    }

public function addEvaluation($insert_prev, $insert_array, $homework_id, $evaluation_date, $evaluated_by) {
        $this->db->trans_start(); # Starting Transaction
        $this->db->trans_strict(false); # See Note 01. If you wish can remove as well
        //=======================Code Start===========================
        $homework = array('evaluation_date' => $evaluation_date, 'evaluated_by' => $evaluated_by);
        $this->db->where("id", $homework_id)->update("homework", $homework);
        if (!empty($insert_array)) {
            foreach ($insert_array as $insert_student_key => $insert_student_value) {
                $insert_student = array(
                    'homework_id' => $homework_id,
                    'student_session_id' => $insert_student_value,
                    'status' => 'Complete',
                );
                $this->db->insert("homework_evaluation", $insert_student);
                $insert_prev[] = $this->db->insert_id();
            }
        }
        $this->db->where('homework_id', $homework_id);
        $this->db->where_not_in('id', $insert_prev);
        $this->db->delete('homework_evaluation');
        //======================Code End==============================
        $this->db->trans_complete(); # Completing transaction
        /* Optional */
        if ($this->db->trans_status() === false) {
            # Something went wrong.
            $this->db->trans_rollback();
            return false;
        } else {
            return true;
        }
    }

public function searchHomeworkEvaluation($class_id, $section_id, $subject_id) {

if ((!empty($class_id)) && (!empty($section_id)) && (!empty($subject_id))) {

$this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id, 'homework.subject_id' => $subject_id));
        } else if ((!empty($class_id)) && (empty($section_id)) && (empty($subject_id))) {

$this->db->where(array('homework.class_id' => $class_id));
        } else if ((!empty($class_id)) && (!empty($section_id)) && (empty($subject_id))) {

$this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id));
        }

$query = $this->db->select('homework.*,classes.class,sections.section,subjects.name')
                ->join('classes', 'classes.id = homework.class_id')
                ->join('sections', 'sections.id = homework.section_id')
                ->join('subjects', 'subjects.id = homework.subject_id')
                ->where_in('homework.id', 'select homework_evaluation.homework_id from homework_evaluation join homework on (homework_evaluation.homework_id = homework.id) group by homework_evaluation.homework_id')
                ->get('homework');

return $query->result_array();
    }

public function getEvaluationReport($id) {

$query = $this->db->select("homework.*,homework_evaluation.student_id,homework_evaluation.id as evalid,homework_evaluation.date,homework_evaluation.status,classes.class,subjects.name,sections.section,(select count(*) as total from submit_assignment sa where sa.homework_id=homework.id) as assignments")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join("subjects", "subjects.id = homework.subject_id")->join("homework_evaluation", "homework.id = homework_evaluation.homework_id")->where("homework.id", $id)->get("homework");

return $query->result_array();
    }

public function getEvaStudents($id, $class_id, $section_id) {

$query = $this->db->select("students.*,homework_evaluation.student_id,homework_evaluation.date,homework_evaluation.status,classes.class,subjects.name,sections.section")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join("subjects", "subjects.id = homework.subject_id")->join("homework_evaluation", "homework.id = homework_evaluation.homework_id")->join("students", "students.id = homework_evaluation.student_id", "left")->where("homework.id", $id)->get("homework");
        return $query->result_array();
    }

public function delete_evaluation($prev_students) {

if (!empty($prev_students)) {

$this->db->where_in("id", $prev_students)->delete("homework_evaluation");
        }
    }

public function count_students($class_id, $section_id) {

$query = $this->db->select("student_session.student_id")->join("student_session", "students.id = student_session.student_id")->where(array('student_session.class_id' => $class_id, 'student_session.section_id' => $section_id, 'students.is_active' => "yes", 'student_session.session_id' => $this->current_session))->group_by("student_session.student_id")->get("students");

return $query->num_rows();
    }

public function count_evalstudents($id, $class_id, $section_id) {

$array['homework.id'] = $id;
        $array['homework.session_id'] = $this->current_session;
        $array['students.is_active'] = 'yes';

$query = $this->db->select("count(*) as total")->join("homework_evaluation", "homework_evaluation.homework_id = homework.id")->join('student_session', 'student_session.id=homework_evaluation.student_session_id')->join('students', 'students.id=student_session.student_id')->where($array)->get("homework");
        return $query->row_array();
    }

public function get_homeworkDoc($student_id) {
        return $this->db->select('*')->from('submit_assignment')->where('student_id', $student_id)->get()->result_array();
    }

public function get_homeworkDocByhomework_id($homework_id) {
        return $this->db->select('*')->from('submit_assignment')->where('homework_id', $homework_id)->get()->result_array();
    }

public function getStudentHomeworkWithStatus($class_id, $section_id, $student_session_id) {
        $sql = "SELECT `homework`.*,IFNULL(homework_evaluation.id,0) as homework_evaluation_id, `classes`.`class`, `sections`.`section`, `subject_group_subjects`.`subject_id`, `subject_group_subjects`.`id` as `subject_group_subject_id`, `subjects`.`name` as `subject_name`, `subject_groups`.`id` as `subject_groups_id`, `subject_groups`.`name` FROM `homework` LEFT JOIN homework_evaluation on homework_evaluation.homework_id=homework.id and homework_evaluation.student_session_id=" . $this->db->escape($student_session_id) . "  JOIN `classes` ON `classes`.`id` = `homework`.`class_id` JOIN `sections` ON `sections`.`id` = `homework`.`section_id` JOIN `subject_group_subjects` ON `subject_group_subjects`.`id` = `homework`.`subject_group_subject_id` JOIN `subjects` ON `subjects`.`id` = `subject_group_subjects`.`subject_id` JOIN `subject_groups` ON `subject_group_subjects`.`subject_group_id`=`subject_groups`.`id` WHERE `homework`.`class_id` = " . $this->db->escape($class_id) . " AND `homework`.`section_id` = " . $this->db->escape($section_id) . " AND `homework`.`session_id` = " . $this->current_session . " order by homework.homework_date desc";
        $query = $this->db->query($sql);
        return $query->result_array();
    }

public function getStudentHomework($class_id, $section_id) {

$this->db->select("`homework`.*,classes.class,sections.section,subject_group_subjects.subject_id,subject_group_subjects.id as `subject_group_subject_id`,subjects.name as subject_name,subject_groups.id as subject_groups_id,subject_groups.name,(select count(*) as total from submit_assignment where submit_assignment.homework_id=homework.id) as assignments");
        $this->db->join("classes", "classes.id = homework.class_id");
        $this->db->join("sections", "sections.id = homework.section_id");
        $this->db->join("subject_group_subjects", "subject_group_subjects.id = homework.subject_group_subject_id");
        $this->db->join("subjects", "subjects.id = subject_group_subjects.subject_id");
        $this->db->join("subject_groups", "subject_group_subjects.subject_group_id=subject_groups.id");
        $this->db->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id));
        $this->db->where('homework.session_id', $this->current_session);
        $query = $this->db->get("homework");
        return $query->result_array();

// $query = $this->db->select("homework.*,subjects.name,sections.section,classes.class")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join("subjects", "subjects.id = homework.subject_id")->where(array('homework.class_id' => $class_id, 'homework.section_id' => $section_id))->get("homework");
        // return $query->result_array();
    }

public function get_HomeworkSubject($subjectgroup_id) {
        return $this->db->select('subjects.name as subject,subjects.code')->from('subject_group_subjects')->join('subjects', 'subject_group_subjects.subject_id=subjects.id')->where('subject_group_subjects.subject_group_id', $subjectgroup_id)->get()->result_array();
    }

public function upload_docs($data) {

$this->db->where('homework_id', $data['homework_id']);
        $this->db->where('student_id', $data['student_id']);
        $q = $this->db->get('submit_assignment');

if ($q->num_rows() > 0) {
            $this->db->where('homework_id', $data['homework_id']);
            $this->db->where('student_id', $data['student_id']);
            $this->db->update('submit_assignment', $data);
        } else {

$this->db->insert('submit_assignment', $data);
        }
    }

// public function upload_docs($data)
    // {
    //     if (isset($data['id']) && $data['id'] != null) {
    //         $this->db->where("id", $data["id"])->update("submit_assignment", $data);
    //         return $data['id'];
    //     } else {
    //         $this->db->insert("submit_assignment", $data);
    //         return $this->db->insert_id();
    //     }
    // }

public function get_upload_docs($array) {
        return $this->db->select('*')->from('submit_assignment')->where($array)->get()->result_array();
    }

public function getEvaluationReportForStudent($id, $student_id) {

$query = $this->db->select("homework.*,homework_evaluation.student_id,homework_evaluation.id as evalid,homework_evaluation.date,homework_evaluation.status,homework_evaluation.student_id,classes.class,sections.section")->join("classes", "classes.id = homework.class_id")->join("sections", "sections.id = homework.section_id")->join("homework_evaluation", "homework.id = homework_evaluation.homework_id")->where("homework.id", $id)->get("homework");
        //->where("homework_evaluation.student_id", $student_id)
        $result = $query->result_array();

foreach ($result as $key => $value) {

if ($value["student_id"] == $student_id) {

return $value;
            } else {

$data = array('date' => $value["date"], 'status' => 'Incomplete');
                return $data;
            }
        }

//return $query->result_array();
    }

public function get_homeworkDocBystudentId($homework_id, $student_id) {
        $where = array('submit_assignment.homework_id' => $homework_id, 'submit_assignment.student_id' => $student_id);
        $query = $this->db->select('students.*,submit_assignment.docs,submit_assignment.message')->from('submit_assignment')->join('students', 'students.id=submit_assignment.student_id', 'inner')->where($where)->get();
        return $query->result_array();
    }

public function check_assignment($homework_id, $student_id) {
        $status = $this->db->select('*')->from('submit_assignment')->where(array('homework_id' => $homework_id, 'student_id' => $student_id))->get()->num_rows();
        return $status;
    }

}

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