Magento 1 – Fix Class Not Found Error

autoloaderclasserrorfatal error

I am loading a custom class from the lib folder and I'm getting the following error:

Fatal error: Class 'NameSpace_MyClass' not found in /dir/to/site/app/code/local/NameSpace/Module/controllers/Adminhtml/ModuleController.php on line 93

My class directory tree looks like this

./lib
    /NameSpace
        /MyClass.php
    /Varian
    /Zend

The declaration in the controller looks like:

$class = new NameSpace_MyClass($id);

And MyClass.php looks like this

class MyClass{

    private $id;

    public function __construct($id) {
        $this->id = $id;
    }
}

How am I able to call this class? I'm under the impression I don't need to do anything in an xml file to load this as Magento/Zend auto includes files in the lib folder. Is this correct?

Best Answer

For the Magento autoloader to find it, the class must be called NameSpace_MyClass, not MyClass and also not NameSpace\MyClass

If you want to use libraries with real namespaces, you need an additional autoloader that is PSR-0 or PSR-4 compatible. I can recommend the Magento-PSR-0-Autoloader

With this extension, you would register the namespace in config.xml like this:

<psr0_namespaces>
    <NameSpace />
</psr0_namespaces>

Then, define a real namespace:

namespace NameSpace;

class MyClass{

    private $id;

    public function __construct($id) {
        $this->id = $id;
    }
}

And use to the class like this:

use NameSpace\MyClass;
$class = new MyClass($id);
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