Add POST data for orderBy and orderDir in the filter processing.

[zonky2]

Add POST data for orderBy and orderDir in the filter processing.

Add POST data to slug parameter here

core/src/FrontendIntegration/FrontendFilter.php

Lines 394 to 400 in a176d53

	if (Input::post('FORM_SUBMIT') === $this->formId) {
	foreach ($wantedNames as $widgetName) {
	$filter = $arrWidgets[$widgetName];
	if (null !== $filter['urlvalue']) {
	$other->setSlug($widgetName, $filter['urlvalue']);
	}
	}

[zonky2]

Please note that you can now set the parameters yourself and also make a selection between GET and Slug.

[zonky2]

@stefanheimes create a new type of filter as "filter_pass_through"

[discordier]

Can't we add this to the filter module/element instead of adding a non functional filter?

On the given use case, we might want to add a custom "sorting filter" for the frontend, however, I am unsure how this will be integrated into the list and filter module workflow.