[[!migxLoopCollection? &classname=`modResource` &joins=`[ {"alias":"Slider","classname":"modTemplateVarResource","on":"Slider.contentid=modResource.id AND Slider.tmplvarid=24"} ]` &selectfields=`id,pagetitle` [[- <!-- search -->]] &where=`[ {"published":"1"}, {"parent":"[[!+userPubId]]"}, {"Slider":"true"} ]` [[- <!-- sort -->]] &sortConfig=`[{"sortby":"publishedon","sortdir":"DESC"}]` ]]
This question has been answered by stefan79w. See the first response.
{"Slider.value":"true"}