The AutoLoader

The AutoLoader is the backbone of the POS module system. It's responsible for discovering and including all the available modules. There are a few things to be aware of when interacting with this system:

• The name of your module's class must match the file's name. If you create a class named MyNewModule it needs to go in a file named MyNewModule.php. The AutoLoader will not find the module correctly if the class and file names do not correspond.
• Modules are identified via inheritence. If your module's class does not extend one of the base module AutoLoader won't find it.
• Modules located inside plugins are only loaded if that plugin is enabled.
• AutoLoader::ListModules($base_class) will return a list of all modules that implement a specified base class. This list is ordered such that all plugin-provided modules are at the front of the list before any of the modules that are included by default. Plugins can often use this fact to override default behavior.