return all resources with a specific TV value

specificTV.php

<?php
$c = $modx->newQuery('modResource');
$c->innerJoin('modTemplateVarResource','TemplateVarResources');
$c->innerJoin('modTemplateVar','TemplateVar','TemplateVarResources.tmplvarid = TemplateVar.id');
$c->where(array(
	'TemplateVar.name' => 'access_front',
	'TemplateVarResources.value' => true,
));
$ress = $modx->getCollection('modResource',$c);