Get the config inputfield object for a module

[MarkE]

This is not really a tutorial, but simply a little trick.

I was trying to work on an enhancement for @adrian's module ModuleSettingsImportExport but hit a slight roadblock. For a configurable module I wanted to get the class of an inputfield (set in getModuleConfigInputfields). However I could only see how to get its value, not any way to get the object itself. I did a lot of searching without any resault. Then I realised that you could do it like this:

// $module is the module we are interested in (check it is configurable)
// $fieldName is the name of the config inputfield

$wrap = new InputfieldWrapper();
$module->getModuleConfigInputfields($wrap);
$field = $wrap->get($fieldName);

// $field is the inputfield object for $fieldName

Might be of use to someone (if only me when I come across it again 😉)