Joomla 4 – How to use namespace in a third party module.

[Astrid Günther]

Hello

I just had a look to the j4 modules. For example breadcrumbs has a helper class in a namespace
namespace Joomla\Module\Breadcrumbs\Site\Helper;

I want to adapt this to may own module. But it did not work, because the namespace of my module is not not mapped in the file

/libraries/autoload_psr4.php

Is there a recommended way or an example how to use namespaces in third party modules?

[Astrid Günther]

In other words. Speaks something against loading the namespace with

$loader = include JPATH_LIBRARIES . '/vendor/autoload.php';
$loader->setPsr4('Joomla\\Module\\Foo\\Site\\', [JPATH_ROOT . "/modules/mod_foo/"]);

[Allon Moritz]

You can define the namespace in the manifest and it should then update the internal joomla core classmap.

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[Astrid Günther]

Thank you very much Allon. I did not look at the XML file well enough. After your tip, it was clear.

So that not others have the same problem as me, I started to rewrite the module tutorial for Joomla 4.

So far it can only be seen on my user page: https://docs.joomla.org/User:Astridx

How do you see this? Is it too early to start such a tutorial? Did I write something wrong or should I / can I submit it to JDoc for publishing?

[Allon Moritz]

On the module side, I do not expect big changes till the final release. But I would coordinate with George which is the release lead if it is inline with his idea.

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