missing dependency for zendframework/zend-feed stand-alone

[robinvdvleuten]

When I use zendframework/zend-feed standalone;

{
    "zendframework/zend-feed": "~2.3"
}

I get the following error;

PHP Fatal error:  Class 'Zend\ServiceManager\AbstractPluginManager' not found in...

Seems there is missing a dependency for the feed component.

[barryvdh]

Same her, first got a Class 'Zend\Http\Client' not found error. After requiring the zend-http package, I get Class 'Zend\ServiceManager\AbstractPluginManager' not found

[Ocramius]

@barryvdh what API is causing this failure?

[barryvdh]

Zend feed reader, importing an xml url

[samsonasik]

I created PR #7179 for it.

[weierophinney]

I've closed #7179 as it is not a reasonable solution.

As noted in that issue:

The problem people are reporting is a documentation issue: if you use it standalone, you need to create your own implementation of Zend\Feed\Reader\ExtensionPluginInterface that will allow resolving the various feed and entry extensions plugins.

Right now, the default implementation of that is a Zend\ServiceManager\AbstractPluginManager extension, which is why users are reporting that the dependency is missing. Ideally, we should likely provide a default implementation that does not have dependencies, and only have the current ExtensionManager implementation for those who want to leverage the capabilities provided by our ServiceManager component.

I'm adding this to my TODO list for 2.4. In the meantime, take a look at Zend\Feed\Reader\ExtensionPluginManager and how it maps extensions to the classes that provide the functionality; from there, it should be trivial to create a standalone ExtensionManagerInterface implementation for your needs.

[weierophinney]

Closed with #7254

[harikt]

Same as reported earlier #5414