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✏️ Editing: Book_model.php

<?php

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

class Book_model extends MY_Model {

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

/**
     * This funtion takes id as a parameter and will fetch the record.
     * If id is not provided, then it will fetch all the records form the table.
     * @param int $id
     * @return mixed
     */
    public function get($id = null) {
        $this->db->select()->from('books');
        if ($id != null) {
            $this->db->where('books.id', $id);
        } else {
            $this->db->order_by('books.id');
        }
        $query = $this->db->get();
        if ($id != null) {
            return $query->row_array();
        } else {
            return $query->result_array();
        }
    }

public function getbooklist() {

$this->datatables
            ->select('books.*,IFNULL(total_issue, "0") as `total_issue` ')
            ->searchable('book_title,description,book_no,isbn_no,publish,author,subject,rack_no,qty," ",perunitcost,postdate')
            ->orderable('book_title,description,book_no,isbn_no,publish,author,subject,rack_no,qty," ",perunitcost,postdate')
            ->join(" (SELECT COUNT(*) as `total_issue`, book_id from book_issues  where is_returned= 0  GROUP by book_id) as `book_count`","books.id=book_count.book_id","left")
            ->from('books');
            return $this->datatables->generate('json');
    }

public function getBookwithQty() {

$sql = "SELECT books.*,IFNULL(total_issue, '0') as `total_issue` FROM books LEFT JOIN (SELECT COUNT(*) as `total_issue`, book_id from book_issues  where is_returned= 0 GROUP by book_id) as `book_count` on books.id=book_count.book_id";

$query = $this->db->query($sql);

if ($query->num_rows() > 0) {
            return $query->result_array();
        }
        return false;
    }

/**
     * This function will delete the record based on the id
     * @param $id
     */
    public function remove($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);
        $this->db->delete('books');
        $this->db->where('book_id', $id);
        $this->db->delete('book_issues');
        $message = DELETE_RECORD_CONSTANT . " On books 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;
        }
    }

/**
     * This function will take the post data passed from the controller
     * If id is present, then it will do an update
     * else an insert. One function doing both add and edit.
     * @param $data
     */
    public function addbooks($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'])) {
            $this->db->where('id', $data['id']);
            $this->db->update('books', $data);
            $message = UPDATE_RECORD_CONSTANT . " On books id " . $data['id'];
            $action = "Update";
            $record_id = $data['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;
            }
        } else {
            $this->db->insert('books', $data);
            $insert_id = $this->db->insert_id();
            $message = INSERT_RECORD_CONSTANT . " On books 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 $return_value;
            }
            return $insert_id;
        }
    }

public function listbook() {
        $this->db->select()->from('books');
        $this->db->order_by("id", "desc");
        $listbook = $this->db->get();
        return $listbook->result_array();
    }

public function check_Exits_group($data) {
        $this->db->select('*');
        $this->db->from('feemasters');
        $this->db->where('session_id', $this->current_session);
        $this->db->where('feetype_id', $data['feetype_id']);
        $this->db->where('class_id', $data['class_id']);
        $this->db->limit(1);
        $query = $this->db->get();
        if ($query->num_rows() == 1) {
            return false;
        } else {
            return true;
        }
    }

public function getTypeByFeecategory($type, $class_id) {
        $this->db->select('feemasters.id,feemasters.session_id,feemasters.amount,feemasters.description,classes.class,feetype.type')->from('feemasters');
        $this->db->join('classes', 'feemasters.class_id = classes.id');
        $this->db->join('feetype', 'feemasters.feetype_id = feetype.id');
        $this->db->where('feemasters.class_id', $class_id);
        $this->db->where('feemasters.feetype_id', $type);
        $this->db->where('feemasters.session_id', $this->current_session);
        $this->db->order_by('feemasters.id');
        $query = $this->db->get();
        return $query->row_array();
    }

public function bookinventory($start_date, $end_date) {
        $condition = " and date_format(`books`.`postdate`,'%Y-%m-%d') between '" . $start_date . "' and '" . $end_date . "'";
        $sql = "SELECT books.*,IFNULL(total_issue, '0') as `total_issue` FROM books LEFT JOIN (SELECT COUNT(*) as `total_issue`, book_id from book_issues  where is_returned= 0  GROUP by book_id) as `book_count` on books.id=book_count.book_id where 0=0 " . $condition . " ";

$this->datatables->query($sql)
        ->orderable('book_title,book_no,isbn_no,publish,author,subject,rack_no,qty,null,null,perunitcost,postdate')
        ->searchable('book_title,book_no,isbn_no,publish,author,subject,rack_no,qty,null,null,perunitcost,postdate')
     
        ->query_where_enable(TRUE);
       
        return $this->datatables->generate('json');

}

public function bookoverview($start_date, $end_date) {
        $condition = " and date_format(`books`.`postdate`,'%Y-%m-%d') between '" . $start_date . "' and '" . $end_date . "'";
        $sql = "SELECT sum(books.qty) as qty,sum(IFNULL(total_issue, '0')) as `total_issue` FROM books LEFT JOIN (SELECT COUNT(*) as `total_issue`, book_id from book_issues  where is_returned= 0  GROUP by book_id) as `book_count` on books.id=book_count.book_id where 0=0 " . $condition . " ";

$query = $this->db->query($sql);

if ($query->num_rows() > 0) {
            return $query->result_array();
        }
        return false;
    }

}

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