Shortcut Args for Display Posts

	<?php

	/**
	* Industry and Product Category parameters on Display Posts Shortcode
	* @author Bill Erickson
	* @link http://www.billerickson.net/shortcut-args-for-display-posts-shortcode
	*
	* @param array $args, WP Query arguments
	* @param array $atts, shortcode arguments
	* @return array $args
	*/
	function be_dps_industry_and_category( $args, $atts ) {

	// If neither of my custom parameters are in use, return the $args (no modifications necessary)
	if( ! ( isset( $atts['industry'] ) \|\| isset( $atts['product_cat'] ) ) )
	return $args;

	// Set up a tax query, using the existing tax query if there is one
	$tax_query = isset( $args['tax_query'] ) ? $args['tax_query'] : array();

	// If they specified an industry, include that in the tax query
	if( isset( $atts['industry'] ) ) {
	$tax_query[] = array(
	'taxonomy' => 'product-industry',
	'field' => 'slug',
	'terms' => explode( ', ', $atts['industry'] ),
	);
	}

	// If they specified a product category, include that in the tax query
	if( isset( $atts['product_cat'] ) ) {
	$tax_query[] = array(
	'taxonomy' => 'product-category',
	'field' => 'slug',
	'terms' => explode( ', ', $atts['product_cat'] ),
	);
	}

	// For Multiple tax queries, ensure results match both queries
	if( 1 < count( $tax_query ) && !isset( $tax_query['relation'] ) )
	$tax_query['relation'] = 'AND';

	$args['tax_query'] = $tax_query;

	// Set the post type to 'products'
	$args['post_type'] = 'products';

	return $args;

	}
	add_filter( 'display_posts_shortcode_args', 'be_dps_industry_and_category', 10, 2 );