PHP Undefined variable: templates in Controller - php

Question

I have this folder structure for mvc:
application
-----------catalog
------------------controller
----------------------------IndexContoller.php
------------------model
----------------------------IndexModel.php
------------------view
------------------language
-----------admin
------------------controller
------------------model
------------------view
------------------language
core
------Controller.php
public
------Index.php
vendor
....
In index.php I have:
define('DS', DIRECTORY_SEPARATOR, true);
define('BASE_PATH', __DIR__ . DS, TRUE);
//Show errors
//===================================
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
define('ABSPATHS', preg_replace('/\\\/', '/', dirname(dirname(__FILE__))));
$abspath = preg_replace('/\\\/', '/', dirname(__FILE__));
require '../vendor/autoload.php';
//Upadte
$templates = new League\Plates\Engine(Config::get('PATH_VIEW'));
and autoload using composer PSR4 like this :
"autoload": {
"psr-4": { "Application\\": "application/","Application\\Core\\": "application/core/","Application\\Catalog\\Model\\": "application/catalog/model/"}
}
}
Now in Core Controller I have:
namespace Application\Core;
class Controller
{
// public $templates;
/**
* Construct the (base) controller. This happens when a real controller is constructed, like in
* the constructor of IndexController when it says: parent::__construct();
*/
public function __construct()
{
$this->Language = new Language();
}
}
In controller IndexController I have:
namespace Application\Catalog\Controller;
use Application\Core\Controller as Controller;
class IndexController extends Controller
{
/**
* Construct this object by extending the basic Controller class
*/
public function __construct()
{
parent::__construct();
}
/**
* Handles what happens when user moves to URL/index/index - or - as this is the default controller, also
* when user moves to /index or enter your application at base level
*/
public function index()
{
echo $templates->render('index/index', ['name' => 'Jonathan']);
}
}
In Action i see this error and autoload not loading class in controller:
Notice: Undefined variable: templates in /Applications/XAMPP/xamppfiles/htdocs/cms/application/catalog/controller/IndexController.php on line 23
How do can i fix this error?

Answer 1

The error states that Application\Core\League\Plates\Engine can not be found. According to your autoload definition Application\Core is located at application/core but according to you directory structure you supplied that file doesn't exists. You need to ensure the file you're trying to load exists where you've said it is.
As a side note you're using composer's PSR-4 autoload functionality but you aren't conforming to PSR-4

Answer 2

You're not explicitly listing vendor folder contents, but I suppose you installed the package https://github.com/thephpleague/plates/blob/master/composer.json through composer... then:
How about placing in Controller :
/Applications/XAMPP/xamppfiles/htdocs/cms/application/core/Controller.php
on top the line:
use League\Plates\Engine;
Also:
"autoload": {
"psr-4": { "Application\\": "application/","Application\\Core\\": "application/core/","Application\\Catalog\\Model\\": "application/catalog/model/"}
}
}
is too much...
The following should be enough:
autoload": {
"psr-4": {
"Application\\": "application/"
}
}
Then add directives like (when needed) in your classes:
use Application\Catalog\Model\...
EDIT
Var $templates is not accessible within IndexController, try this:
remove form index.php
$templates = new League\Plates\Engine(Config::get('PATH_VIEW'));
and edit IndexController as follows:
namespace Application\Catalog\Controller;
use Application\Core\Controller as Controller;
use League\Plates\Engine;
class IndexController extends Controller
{
/**
* Construct this object by extending the basic Controller class
*/
public function __construct()
{
parent::__construct();
}
/**
* Handles what happens when user moves to URL/index/index - or - as this is the default controller, also
* when user moves to /index or enter your application at base level
*/
public function index()
{
$templates = new Engine(Config::get('PATH_VIEW'));
echo $templates->render('index/index', ['name' => 'Jonathan']);
}
}
But since I suppose you'll need to use $templates in more controllers you should define
protected $templates = new League\Plates\Engine(Config::get('PATH_VIEW'));
in parent class Controller and access to it through
$this->templates
in descendants...