gistfile1.aw

<?php

add_action( 'pre_get_posts', 'be_listing_type_query' );
/**
 * Customize the Listing Type taxonomy query
 * 
 * @author Bill Erickson
 * @link http://www.billerickson.net/customize-the-wordpress-query/
 * @param object $query data
 *
 */
function be_listing_type_query( $query ) {

	if( $query->is_main_query() && $query->is_tax( 'otf_listing_type' ) ) {
		$meta_query = array(
			'key'		=> '_oft_ad_level',
			'value'		=> 'free',
			'compare'	=> '='
		);
		$query->set( 'meta_query', $meta_query );
		$query->set( 'posts_per_page', '7' );
		$query->set( 'orderby', 'title' );
		$query->set( 'order', 'ASC' );
	}

}