Shortcode to output projects by group.

project-group-shortcode.php

<?php

function akv3_project_group_shortcode($atts) {
	extract(shortcode_atts(array(
		'group' => null,
		'description' => null,
	), $atts));
	if (empty($group)) {
		return '';
	}
	$term = get_term_by('slug', $group, 'project-groups');
?>
<h2 class="widget-title clearfix"><?php echo esc_html($term->name); ?></h2>
<div class="project-group clearfix">
<?php
	if (!empty($description)) {
		echo wpautop(wptexturize($description));
	}
	$args = array(
		'post_type' => 'project',
		'posts_per_page' => -1,
		'orderby' => 'title',
		'order' => 'ASC',
		'tax_query' => array(
			array(
				'taxonomy' => 'project-groups',
				'field' => 'slug',
				'terms' => $group,
			)
		)
	);
	if ($group != 'featured') {
		$args['tax_query'][] = array(
			'taxonomy' => 'project-groups',
			'field' => 'slug',
			'terms' => 'featured',
			'operator' => 'NOT IN'
		);
	}
	$query = new WP_Query($args);
	while ($query->have_posts()) {
		$query->the_post();
		// AKV#_PATH is defined in my child theme
		include(AKV3_PATH.'misc/project-summary.php');
	}
?>
</div>
<?php
	wp_reset_postdata();
}
add_shortcode('project-group', 'akv3_project_group_shortcode');