[4.0] Drop the MVCFactoryFactory

[laoneo]

Summary of Changes

In #20217 got an MVCFactoryFactoryInterface introduced to create an MVCFactoryInterface for a given application. This can be made simpler by providing the MVCFactoryInterface instances directly by the component.

This implies that creating a model, view or table from the factory needs a prefix. If this is not the case, a deprecated message is triggered and the application name of the current application is used. It simplifies the code and plugins can directly override the service to create the factory, instead of having a factory which creates factories.

The factory can be loaded now through:
$factory = $app->bootComponent('com_content')->getMVCFactory();

If you call the create functions without prefix, a deprecated message is triggered, so instead of
$factory->createModel('Articles');

you should call it with a prefix:
$factory->createModel('Articles', 'Administrator');

Testing Instructions

Browse around in the front end and back end.

Expected result

All is working.

Actual result

All is working.

Documentation Changes Required

Needs to be documented together with the rest of the namespacing and service provider changes.

[wilsonge]

What exactly are we deprecating here? Are we saying you always have to pass in the prefix when creating a mvc instance?

[laoneo]

Yes. The controller which is loading the models on an ordinary page request is taking care of that already. It is just when a module, etc. needs a model, then a prefix is expected.

[wilsonge]

Thanks!