2873 bug cannot use timberpostfactory when extending post class as the method is private

[Levdbas]

Related:

• #2873

Issue

The Timber\Post::factory() is private and thus cannot be overwritten. So there was no way to alter the query to get the children.

Solution

Added two new ways to alter the query:

1. added a filter to change the arguments
2. Add a new functionality to overload the children() parameter with query arguments.

I came up with the second approach later because that might be easier for most people. You could just change the arguments in your children call or make a separate children method in your custom class that calls the parent::children method with these additional arguments.

Impact

No negative impact since loading the argument with a string or a non-indexed array still works.

Usage Changes

No

Considerations

Maybe one of these methods is enough. Not sure if adding the full argument list is a bit too much for this method.

Testing

Yes! First unit test I've ever written 👯