Multiple TV searching via xPDO

MultipleTV.php

<?php
//http://modxcms.com/forums/index.php?topic=58644.msg354702#msg354702

$query->where(array(
    array(
        'id:IN' => $children_of_this_folder,
        'published' => true,
        'deleted' => false, 
        'hidemenu' => false,
        'isfolder' => false,
    ),
    array(
        array(
            'TemplateVar.name' => 'tv1',  
            'TemplateVarResources.value' => 'something',
        ),
        array(
            'TemplateVar.name' => 'tv2',
            'TemplateVarResources.value:!=' => 'something else'
        )
    )
))