Accessing another controller’s variable - Cakephp

Question

How do I access variables from another controller?

For example:

I have a controller X, and in action index, I create a variable (or a constant). Of controller Y, I want to access the value of the variable (or constant) of controller X.

Is it possible to do that? Remembering that every action of each controller, in my application, will have a variable that should be accessible from another controller.

Controller Exemplox

class ExemploXController 
    {
        $dependencias = array("index","listar");

        public function index()
            {
                echo "Index";
            }
        public function funcaoX()
            {
                echo "Funcão X";
            }
        public function listar()
            {
                echo "listando";
            }
    }

Controller Exemploy

class ExemploYController
    {
        $dependencias = array("index","atualizar");

        public function index()
            {
                //pegar o valor da variável $dependencias da controller ExemploXController
                $dependency[] = ExemploXController->dependencias;
            }
        public function funcaoY()
            {
                echo "Funcão Y";
            }
        public function atualizar()
            {
                echo "atualizar";
            }
    }

Answer 1

Hello, you can create a requestAction. With it you can use both the same controller and other controllers, but don’t forget to create the elemment of cache.

http://book.cakephp.org/2.0/pt/controllers.html#Controller::requestAction

Answer 2

Accessing variables from other controllers is completely different from accessing their methods or actions.

The controllers Cakephp’s are just common classes, so in theory, you could access your attributes and methods in the same way as you would any class, simply by uploading the respective file.

One way to do this is by using the App::import. See the example of the documentation itself:

// The same as require('Controller/UsersController.php');
App::import('Controller', 'Users');

// We need to load the class
$Users = new UsersController();

As the documentation itself indicates, this is equivalent to using the method directly require. Alternatively, you could create a file with the constants you need and include those files in your code, using where necessary.