Codeigniter 4 CRUD Jquery Ajax (Create, Read, Update and Delete) with Bootstrap 5 Modal

Codeigniter 4 CRUD Jquery Ajax (Create, Read, Update and Delete) with Bootstrap 5 Modal

Download or Install Codeigniter 4

https://www.youtube.com/watch?v=YezQaWHZbis

Database table 

CREATE TABLE `students` (

  `id` int(11) NOT NULL,

  `first_name` varchar(64) NOT NULL,

  `last_name` varchar(64) NOT NULL,

  `address` text NOT NULL

) ENGINE=InnoDB DEFAULT CHARSET=latin1;

INSERT INTO `students` (`id`, `first_name`, `last_name`, `address`) VALUES

(1, 'Cairocoders', 'Ednalan', 'Olongapo City'),

(2, 'Clydey', 'Ednalan', 'Olongapo City'),

(4, 'cairty sdf', 'Mojica sdf ', 'Olongaposdf '),

(5, 'Airi', 'Satou', 'Tokyo'),

(6, 'Angelica', 'Ramos', 'London'),

(7, 'Ashton', 'Cox', 'San Francisco'),

(8, 'Bradley', 'Greer', 'London'),

(9, 'Brenden', 'Wagner', 'San Francisco'),

(10, 'Brielle', 'Williamson', 'London'),

(11, 'Caesar', 'Vance', 'New York'),

(12, 'Cara', 'Stevens', 'New York'),

(13, 'Cedric', 'Kelly', 'Edinburgh');

ALTER TABLE `students`

  ADD PRIMARY KEY (`id`);

ALTER TABLE `students`

  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=14;

  

https://datatables.net/

DataTables is a table enhancing plug-in for the jQuery Javascript library, adding sorting, paging and filtering abilities to plain HTML tables with minimal effort.

Bootstrap 5

https://getbootstrap.com/docs/5.0/getting-started/introduction/

https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css

Jquery

https://jquery.com/download/

CDN : jsDelivr CDN

https://www.jsdelivr.com/package/npm/jquery

https://cdn.jsdelivr.net/npm/jquery@3.6.0/dist/jquery.min.js

setup database

app/config/database.php

//app/config/database.php
    public $default = [
        'DSN'      => '',
        'hostname' => 'localhost',
        'username' => 'root',
        'password' => '',
        'database' => 'codeigniterDB',
        'DBDriver' => 'MySQLi',
        'DBPrefix' => '',
        'pConnect' => false,
        'DBDebug'  => (ENVIRONMENT !== 'production'),
        'charset'  => 'utf8',
        'DBCollat' => 'utf8_general_ci',
        'swapPre'  => '',
        'encrypt'  => false,
        'compress' => false,
        'strictOn' => false,
        'failover' => [],
        'port'     => 3306,
    ];

Create New Model
app/Models/StudentModel.php

//app/Models/StudentModel.php
<?php 
 
namespace App\Models;
use CodeIgniter\Database\ConnectionInterface;
use CodeIgniter\Model;
  
class StudentModel extends Model
{
    protected $table = 'Students';
  
    protected $allowedFields = ['first_name','last_name','address'];
     
    public function __construct() {
        parent::__construct();
        //$this->load->database();
        $db = \Config\Database::connect();
        $builder = $db->table('Students');
    }
     
    public function insert_data($data) {
        if($this->db->table($this->table)->insert($data))
        {
            return $this->db->insertID();
        }
        else
        {
            return false;
        }
    }
}
?>

Create Controller
app/Controllers/Student.php

//app/Controllers/Student.php
<?php 
 
namespace App\Controllers;
  
use CodeIgniter\Controller;
use App\Models\StudentModel;
  
class Student extends Controller
{
  
    public function index()
    {    
        $model = new StudentModel();
  
        $data['students_detail'] = $model->orderBy('id', 'DESC')->findAll();
         
        return view('list', $data);
    }    
 
  
    public function store()
    {  
        helper(['form', 'url']);
          
        $model = new StudentModel();
         
        $data = [
            'first_name' => $this->request->getVar('txtFirstName'),
            'last_name'  => $this->request->getVar('txtLastName'),
            'address'  => $this->request->getVar('txtAddress'),
            ];
        $save = $model->insert_data($data);
        if($save != false)
        {
            $data = $model->where('id', $save)->first();
            echo json_encode(array("status" => true , 'data' => $data));
        }
        else{
            echo json_encode(array("status" => false , 'data' => $data));
        }
    }
  
    public function edit($id = null)
    {
       
     $model = new StudentModel();
     
     $data = $model->where('id', $id)->first();
      
    if($data){
            echo json_encode(array("status" => true , 'data' => $data));
        }else{
            echo json_encode(array("status" => false));
        }
    }
  
    public function update()
    {  
  
        helper(['form', 'url']);
          
        $model = new StudentModel();
 
        $id = $this->request->getVar('hdnStudentId');
 
         $data = [
            'first_name' => $this->request->getVar('txtFirstName'),
            'last_name'  => $this->request->getVar('txtLastName'),
            'address'  => $this->request->getVar('txtAddress'),
            ];
 
        $update = $model->update($id,$data);
        if($update != false)
        {
            $data = $model->where('id', $id)->first();
            echo json_encode(array("status" => true , 'data' => $data));
        }
        else{
            echo json_encode(array("status" => false , 'data' => $data));
        }
    }
  
    public function delete($id = null){
        $model = new StudentModel();
        $delete = $model->where('id', $id)->delete();
        if($delete)
        {
           echo json_encode(array("status" => true));
        }else{
           echo json_encode(array("status" => false));
        }
    }
}
 
?>

Create View
app/View/list.php

//app/View/list.php
<!DOCTYPE html>
<html lang="en">
<head>
<title>Codeigniter 4 CRUD Jquery Ajax (Create, Read, Update and Delete) with Bootstrap 5 Modal</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/jquery@3.6.0/dist/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.12.1/css/jquery.dataTables.min.css">
<script type="text/javascript" src="https://cdn.datatables.net/1.12.1/js/jquery.dataTables.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/jquery.validate.js"></script>
</head>
<body>
<div class="container"><br/><br/>
    <div class="row">
        <div class="col-lg-10">
            <h2>Codeigniter 4 CRUD Jquery Ajax (Create, Read, Update and Delete) with Bootstrap 5 Modal</h2>
        </div>
        <div class="col-lg-2">
            <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addModal">
                Add New Student
            </button>
        </div>
    </div>

    <table class="table table-bordered table-striped" id="studentTable">
        <thead>
            <tr>
                <th>id</th>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Address</th>
                <th width="280px">Action</th>
            </tr>
        </thead>  
        <tbody>
       <?php
        foreach($students_detail as $row){
        ?>
        <tr id="<?php echo $row['id']; ?>">
            <td><?php echo $row['id']; ?></td>
            <td><?php echo $row['first_name']; ?></td>
            <td><?php echo $row['last_name']; ?></td>
            <td><?php echo $row['address']; ?></td>
            <td>
            <a data-id="<?php echo $row['id']; ?>" class="btn btn-primary btnEdit">Edit</a>
            <a data-id="<?php echo $row['id']; ?>" class="btn btn-danger btnDelete">Delete</a>
            </td>
        </tr>
        <?php
        }
        ?>
        </tbody>
    </table>
    <div class="modal fade" id="addModal" tabindex="-1" aria-labelledby="ModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="ModalLabel">Add New Student</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="addStudent" name="addStudent" action="<?php echo site_url('student/store');?>" method="post">
            <div class="modal-body">
                    <div class="form-group">
                        <label for="txtFirstName">First Name:</label>
                        <input type="text" class="form-control" id="txtFirstName" placeholder="Enter First Name" name="txtFirstName">
                    </div>
                    <div class="form-group">
                        <label for="txtLastName">Last Name:</label>
                        <input type="text" class="form-control" id="txtLastName" placeholder="Enter Last Name" name="txtLastName">
                    </div>
                    <div class="form-group">
                        <label for="txtAddress">Address:</label>
                        <textarea class="form-control" id="txtAddress" name="txtAddress" rows="10" placeholder="Enter Address"></textarea>
                    </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                <button type="submit" class="btn btn-primary">Submit</button>
            </div>
            </form>
            </div>
        </div>
    </div>

    <div class="modal fade" id="updateModal" tabindex="-1" aria-labelledby="ModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="ModalLabel">Update Student</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <form id="updateStudent" name="updateStudent" action="<?php echo site_url('student/update');?>" method="post">
            <div class="modal-body">
                <input type="hidden" name="hdnStudentId" id="hdnStudentId"/>
                <div class="form-group">
                    <label for="txtFirstName">First Name:</label>
                    <input type="text" class="form-control" id="txtFirstName" placeholder="Enter First Name" name="txtFirstName">
                </div>
                <div class="form-group">
                    <label for="txtLastName">Last Name:</label>
                    <input type="text" class="form-control" id="txtLastName" placeholder="Enter Last Name" name="txtLastName">
                </div>
                <div class="form-group">
                    <label for="txtAddress">Address:</label>
                    <textarea class="form-control" id="txtAddress" name="txtAddress" rows="10" placeholder="Enter Address"></textarea>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                <button type="submit" class="btn btn-primary">Submit</button>
            </div>
            </form>
            </div>
        </div>
    </div>

</div>

<script>
$(document).ready(function () {
    $('#studentTable').DataTable();

    $("#addStudent").validate({
        rules: {
            txtFirstName: "required",
            txtLastName: "required",
            txtAddress: "required"
        },
        messages: {
        },
          
        submitHandler: function(form) {
            var form_action = $("#addStudent").attr("action");
            $.ajax({
                data: $('#addStudent').serialize(),
                url: form_action,
                type: "POST",
                dataType: 'json',
                success: function (res) {
                    var student = '<tr id="'+res.data.id+'">';
                    student += '<td>' + res.data.id + '</td>';
                    student += '<td>' + res.data.first_name + '</td>';
                    student += '<td>' + res.data.last_name + '</td>';
                    student += '<td>' + res.data.address + '</td>';
                    student += '<td><a data-id="' + res.data.id + '" class="btn btn-primary btnEdit">Edit</a>  <a data-id="' + res.data.id + '" class="btn btn-danger btnDelete">Delete</a></td>';
                    student += '</tr>';            
                    $('#studentTable tbody').prepend(student);
                    $('#addStudent')[0].reset();
                    $('#addModal').modal('hide');
                },
                    error: function (data) {
                }
            });
        }
    });

    $('body').on('click', '.btnEdit', function () {
        var student_id = $(this).attr('data-id');
        $.ajax({
            url: 'student/edit/'+student_id,
            type: "GET",
            dataType: 'json',
            success: function (res) {
                $('#updateModal').modal('show');
                $('#updateStudent #hdnStudentId').val(res.data.id); 
                $('#updateStudent #txtFirstName').val(res.data.first_name);
                $('#updateStudent #txtLastName').val(res.data.last_name);
                $('#updateStudent #txtAddress').val(res.data.address);
            },
                error: function (data) {
            }
        });
    });
    
    $("#updateStudent").validate({
        rules: {
            txtFirstName: "required",
            txtLastName: "required",
            txtAddress: "required"
        },
            messages: {
        },
        submitHandler: function(form) {
            var form_action = $("#updateStudent").attr("action");
            $.ajax({
                data: $('#updateStudent').serialize(),
                url: form_action,
                type: "POST",
                dataType: 'json',
                success: function (res) {
                    var student = '<td>' + res.data.id + '</td>';
                    student += '<td>' + res.data.first_name + '</td>';
                    student += '<td>' + res.data.last_name + '</td>';
                    student += '<td>' + res.data.address + '</td>';
                    student += '<td><a data-id="' + res.data.id + '" class="btn btn-primary btnEdit">Edit</a>  <a data-id="' + res.data.id + '" class="btn btn-danger btnDelete">Delete</a></td>';
                    $('#studentTable tbody #'+ res.data.id).html(student);
                    $('#updateStudent')[0].reset();
                    $('#updateModal').modal('hide');
                },
                    error: function (data) {
                }
            });
        }
    }); 

    $('body').on('click', '.btnDelete', function () {
        var student_id = $(this).attr('data-id');
        $.get('student/delete/'+student_id, function (data) {
            $('#studentTable tbody #'+ student_id).remove();
        })
    });  
});   
</script>
</body>
</html>

Create Routes
app/Config/Routes.php

//app/Config/Routes.php
$routes->get('/', 'Home::index');

// CRUD Routes
$routes->get('student', 'Student::index');
$routes->post('student/store', 'Student::store');
$routes->get('student/edit/(:num)', 'Student::edit/$1');
$routes->get('student/delete/(:num)', 'Student::delete/$1');
$routes->post('student/update', 'Student::update');

Base Site URL
app/Config/App.php
public $baseURL = 'http://localhost:8080/';

Run
C:\xampp\htdocs\codeigniter4>php spark serve

http://localhost:8080/student