Message: Undefined property: stdClass::$designation_id - php

Question

A PHP Error was encountered
Severity: Notice
Message: Undefined property: stdClass::$designation_id
Filename: dashboard/index.php
Line Number: 548
Backtrace:
File: /home/newtalent/public_html/demo/localhost/application/views/dashboard/index.php
Line: 548
Function: _error_handler
File: /home/newtalent/public_html/demo/localhost/application/third_party/MX/Loader.php
Line: 362
Function: include
File: /home/newtalent/public_html/demo/localhost/application/third_party/MX/Loader.php
Line: 304
Function: _ci_load
File: /home/newtalent/public_html/demo/localhost/application/controllers/Dashboard.php
Line: 86
Function: view
File: /home/newtalent/public_html/demo/localhost/index.php
Line: 292
Function: require_once
my controller
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Announcement extends MY_Controller {
public function __construct() {
Parent::__construct();
$this->load->library('session');
$this->load->helper('form');
$this->load->helper('url');
$this->load->helper('html');
$this->load->database();
$this->load->library('form_validation');
//load the model
$this->load->model("Announcement_model");
$this->load->model("Xin_model");
$this->load->model("Designation_model");
}
/*Function to set JSON output*/
public function output($Return=array()){
/*Set response header*/
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
/*Final JSON response*/
exit(json_encode($Return));
}
public function index()
{
$data['title'] = $this->Xin_model->site_title();
$data['all_designations'] = $this->Designation_model->all_designations();
$session = $this->session->userdata('username');
$data['breadcrumbs'] = 'Announcements';
$data['path_url'] = 'user/user_announcement';
if(!empty($session)){
$data['subview'] = $this->load->view("user/announcement_list", $data, TRUE);
$this->load->view('layout_main', $data); //page load
} else {
redirect('');
}
}
public function announcement_list()
{
$data['title'] = $this->Xin_model->site_title();
$session = $this->session->userdata('username');
if(!empty($session)){
$this->load->view("user/announcement_list", $data);
} else {
redirect('');
}
// Datatables Variables
$draw = intval($this->input->get("draw"));
$start = intval($this->input->get("start"));
$length = intval($this->input->get("length"));
$announcement = $this->Announcement_model->get_announcements();
$data = array();
foreach($announcement->result() as $r) {
// get user > added by
$user = $this->Xin_model->read_user_info($r->published_by);
// user full name
$full_name = $user[0]->first_name.' '.$user[0]->last_name;
// get date
$sdate = $this->Xin_model->set_date_format($r->start_date);
$edate = $this->Xin_model->set_date_format($r->end_date);
if($r->designation_id == '') {
$ol = 'All Designations';
} else {
$ol = '<ol class="nl">';
foreach(explode(',',$r->designation_id) as $desig_id) {
$_des_name = $this->Designation_model->read_designation_information($desig_id);
$ol .= '<li>'.$_des_name[0]->designation_name.'</li>';
}
$ol .= '</ol>';
}
$data[] = array('<span data-toggle="tooltip" data-placement="top" title="View"><button type="button" class="btn btn-secondary btn-sm m-b-0-0 waves-effect waves-light" data-toggle="modal" data-target=".view-modal-data" data-announcement_id="'. $r->announcement_id . '"><i class="fa fa-eye"></i></button></span>',
$r->title,
$r->summary,
$ol,
$sdate,
$edate,
$full_name
);
}
$output = array(
"draw" => $draw,
"recordsTotal" => $announcement->num_rows(),
"recordsFiltered" => $announcement->num_rows(),
"data" => $data
);
echo json_encode($output);
exit();
}
}
model
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class announcement_model extends CI_Model {
public function __construct()
{
parent::__construct();
$this->load->database();
}
public function get_announcements()
{
return $this->db->get("xin_announcements");
}
public function read_announcement_information($id) {
$condition = "announcement_id =" . "'" . $id . "'";
$this->db->select('*');
$this->db->from('xin_announcements');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 1) {
return $query->result();
} else {
return false;
}
}
// Function to add record in table
public function add($data){
$this->db->insert('xin_announcements', $data);
if ($this->db->affected_rows() > 0) {
return true;
} else {
return false;
}
}
// Function to Delete selected record from table
public function delete_record($id){
$this->db->where('announcement_id', $id);
$this->db->delete('xin_announcements');
}
// Function to update record in table
public function update_record($data, $id){
$this->db->where('announcement_id', $id);
if( $this->db->update('xin_announcements',$data)) {
return true;
} else {
return false;
}
}
}
?>
View
<?php
$session = $this->session->userdata('username');?>
<div class="box box-block bg-white">
<h2><strong>List All</strong> Announcements </h2>
<div class="table-responsive" data-pattern="priority-columns">
<table class="table table-striped table-bordered dataTable" id="xin_table">
<thead>
<tr>
<th>Action</th>
<th>Title</th>
<th>Summary</th>
<th>Published For</th>
<th>Start Date</th>
<th>End Date</th>
<th>Published By</th>
</tr>
</thead>
</table>
</div>
</div>
if anyone have solution please provide
thanks in advance

Answer 1

This error indicates that there is no property in stdClass.
For example:
<?php
$exampleObj = new stdClass();
$value = $exampleObj->designation_id; // Undefined property: stdClass::$designation_id
To avoid errors, you need to create this property:
<?php
$exampleObj = new stdClass();
$exampleObj->designation_id = 1;
$value = $exampleObj->designation_id;