PSR-0自动加载的问题

Question

I am trying to use this composer package with a new project I am working on https://packagist.org/packages/activecollab/activecollab-sdk . However when i try and create a new class I keep getting the following errors.

Fatal error: Class 'ActiveCollab\Client' not found

The file that is throwing this error looks like this.

require "vendor/autoload.php";

new ActiveCollab\Client;

Which is just being used to test if the files are being loaded in properly. The composer.json of the file which I am trying to use looks like such. And I have a feeling the problem is in this file but I can't figure out what.

stuff...

"autoload": {
      "psr-0": {
        "ActiveCollab\\": "ActiveCollab"
      }
    }

...stuff

Also looking at the autload_namespaces.php file it is being generated as such.

<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);

return array(
    'ActiveCollab' => array($vendorDir . '/activecollab/activecollab-sdk/ActiveCollab'),
);

I have used psr-0 in some composer packages of my own and everything looks to be right except maybe the camel case in the namespace but i don't see this as being disallowed in the php proposal for psr-0.

Thanks for any help this has been driving me crazy.

Answer 1

The thing is: You cannot simply add a composer.json file with a random autoloading configuration and hope that it works - it actually has to match the naming scheme you are using. That is what this project got wrong, and nobody tested it. Which probably means nobody uses this library, and you can expect no support from the creators due to lack of interest.

But let's see how they react on my pull request to get things back to working again.

Answer 2

The composer config looks fine: Is it just the case that you omitted the leading \\ from your class name?

new \ActiveCollab\Client;

You'll need that if your code is inside another namespace, as it will load it relative to the current namespace.

EDIT: I've just checked out that library, and even with the above fix, the autoloader wasn't quite working. The autoloader may also be broken due to the composer.json file for the library specifying a PSR0 autoloader, but using ".class.php" extensions (not PSR0 compatible). An autoload.php file is included with the library, so if you just require that file, you should be able to use the classes:

require 'vendor/activecollab/activecollab-sdk/ActiveCollab/autoload.php';

After doing this, I was able to use the class.