Hi Reader's,

Welcome to FindNerd, today we are going to discuss How to create and add component in CakePHP in 2.4.1 version?

If you want to create or add a component in your web application then you should add your component inside a variable in your controller. Components are packages of logic and these packages are shared between controllers. In CakePHP, there are a good set of components in which you can use various common tasks.
 The main advantage of a component is that if you keep clean code of your controller then you can reuse component code between projects.

Note:- you should always configure components in your controller’s beforeFilter() method.

let create a PopupComponent in which we write a function for showing pop box for editing a client profile like photos editing,services editing, working_hours editing,requests editing.

you can follow below code for creating a component.

<?php

App::uses('Component', 'Controller');

class PopupComponent extends Component {

    public $components = array();
    var $Controller;

    public function startup(Controller $controller) {
        $this->Controller = $controller;
   
    }

    /*
     * @Show Popup.
     * @Created date: 2014-August-8.
     */

    public function showPopup($webPage, $userId) {
        App::import('Model', 'Popup');
        $this->Popup = new Popup();   
        
        $result= array();
        if(!isset($userId) || ($userId =="")){return $result;}

        //Check for if popup/message exist for that page
        $popupDetail = $this->Popup->find('first', array('conditions' => array('Popup.webpage' => $webPage, 'Popup.status' => 1), 'order' => 'Popup.popup_order'));
        if (!empty($popupDetail)) {
            switch ($webPage) {
                
                case 'working_hours':
                    $result = $this->getPopups($webPage, $userId);
                    break;
                case 'requests':
                    $result = $this->getPopups($webPage, $userId);
                    break;
                case 'photos':
                    $result = $this->getPopups($webPage, $userId);
                    break;
                case 'services':
                    $result = $this->getPopups($webPage, $userId);
                    break;
               
            }
        }
        
        return $result;
    }

 ?>

Now you have a component 'PopupComponent' and you want to add this component in your controller, for that you should follow below code.

<?php

class BlogController extends AppController {
    //here add compnent
    public $components = array('PopupComponent');

     public function beforeFilter() {
        
        $this->Auth->autoRedirect = false;
        parent::beforeFilter();
        $this->set('loggedUserDetail', $this->Auth->user());
        $this->Auth->allow('signup', 'client_register');
    }

   }
}
?>

Hope this blog will help to you for creating and adding a component in your controller.