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+--- Thread: How to set global layout data? (/showthread.php?tid=80402)
How to set global layout data? - forumz - 10-27-2021
Is there a way to set layout data in a controller, so that the data is available every time when the layout is rendered?
CodeIgniter 3 had this functionality available and it worked well. The new layout system is more like one Django uses, and I absolutely hate it. Maybe I'm just missing something here ...
Help on this greatly appreciated!
RE: How to set global layout data? - InsiteFX - 10-28-2021
I createed a method in the BaseController to merge a global array with the Controllers data array.
BaseController:
PHP Code:
<?php
namespace App\Controllers;
use CodeIgniter\Controller;
use CodeIgniter\HTTP\CLIRequest;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Services;
use Psr\Log\LoggerInterface;
/**
* Class BaseController
*
* BaseController provides a convenient place for loading components
* and performing functions that are needed by all your controllers.
* Extend this class in any new controllers:
* class Home extends BaseController
*
* For security be sure to declare any new methods as protected or private.
*/
class BaseController extends Controller
{
/**
* Instance of the main Request object.
*
* @var CLIRequest|IncomingRequest
*/
protected $request;
/**
* An array of helpers to be loaded automatically upon
* class instantiation. These helpers will be available
* to all other controllers that extend BaseController.
*
* @var array
*/
protected $helpers = [];
/**
* @var \CodeIgniter\Session\Session
*/
protected $session;
/**
* @var array - Global data array for views.
*
* Fill in your global view data here that will be
* used in all views.
*/
protected static $globalViewData = [
'test' => 'This works!',
];
/**
* Constructor.
*/
public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
{
// Do Not Edit This Line
parent::initController($request, $response, $logger);
// Preload any models, libraries, etc, here.
// E.g.: $this->session = \Config\Services::session();
// Ensure that the session is started and running
if (session_status() == PHP_SESSION_NONE)
{
$this->session = Services::session();
}
}
/**
* mergeGlobalData ()
* -------------------------------------------------------------------
*
* You must set the globalViewData array above with your global data
* for all Controllers.
*
* Usage:
*
* $data = $this->mergeGlobalData($data);
* return view('your_view', $data);
*
* @param array $viewData
* @return array
*/
protected function mergeGlobalData(array $viewData) : array
{
if (is_array(self::$globalViewData))
{
return array_merge($viewData, self::$globalViewData);
}
return [];
}
// --------------------------------------------------------------------
}
Read the comments.
Some times you will need to create an empty view_data.php view file to call first to load global data.
RE: How to set global layout data? - forumz - 10-28-2021
Thank for the reply.
I looked closer at how templates are rendered in the View class of CI4 and decided not to use them at all. Instead I just render views.
In order to pass common data to views like header or footer I added a simple static variable in BaseController class. The variable is just an associative array. It contains keys and values.
PHP Code:
public static $globals = [];
If I need to add some global data somewhere, like in the BaseController, I just create a key and assign a value.
PHP Code:
self::$globals['key'] = 'value';
Then in my view:
PHP Code:
esc(\App\Controller\BaseController::$globals['key']);