I would like to pass a variable from one controller function to an other. In other words, how can I access the variable from an other function, within the same controller?
Thanks
3 Answers
As Pascal mentioned, one way is to set a property on the object:
class CategoriesController extends AppController
{
public $foo = '';
public function index()
{
$this->foo = 'bar';
}
public function view($id = null)
{
$baz = $this->foo;
$this->set('baz', $baz);
}
}
Or pass it as argument:
class CategoriesController extends AppController
{
public function index()
{
$foo = "bar";
$this->view($foo)
}
public function view($param)
{
$this->set('bar', $param);
}
}
1 Comment
Reed Morse
As noted below, "defining a property in the controller is not persistent after subsequent calls to the controller."
I noticed that defining a property in the controller is not persistent after subsequent calls to the controller.
However, defining a property in the model is persistent between controller function calls.
Comments
Consdidering your Controllers are classes, you have two solutions :
- pass the variable as a parameter from one method to the other ; see Function arguments
- or store the data in a class-property, visible from all methods in the same class ; see Properties
Which one of those solutions should you use ?
I suppose it depends on the situation :
- If you only have a few data to share between only two methods, passing them as parameters is probably the way to go.
- If you have data that should be shared by all methods, the second one is the right solution.
- If you are between those two cases... You'll probably have to judge by yourself which one is the most practical solution...
Comments
