gistfile1.php

<?php
// Based on Achievements' DPA_Available_Achievements_Widget widget. Built in about 45 minutes, so YMMV.

add_action( 'dpa_ready', 'md_widget_wrapper', 200 );
function md_widget_wrapper() {

class MD_Unlocked_Achievements_Widget_Grid extends DPA_Available_Achievements_Widget {

	/**
	 * Constructor
	 */
	public function __construct() {
		$widget_ops = array(
			'classname'   => 'widget_dpa_available_achievements', // MD - left intact so existing CSS works
			'description' => __( 'Displays a photo grid of unlocked achievements for the "current" user.', 'dpa' ),
		);

		WP_Widget::__construct( false, __( '(MD) Unlocked Photo Grid', 'dpa' ), $widget_ops );
	}

	/**
	 * Register the widget
	 */
	static public function register_widget() {
		register_widget( 'MD_Unlocked_Achievements_Widget_Grid' );
	}

	/**
	 * Displays the output
	 *
	 * @param array $args
	 * @param array $instance
	 */
	public function widget( $args, $instance ) {
		$settings = $this->parse_settings( $instance );

		// Use these filters
		$settings['limit'] = absint( apply_filters( 'dpa_available_achievements_limit', $settings['limit'], $instance, $this->id_base ) );
		$settings['title'] = apply_filters( 'dpa_available_achievements_title', $settings['title'], $instance, $this->id_base );

		// WordPress filters widget_title through esc_html.
		$settings['title'] = apply_filters( 'widget_title', $settings['title'], $instance, $this->id_base );

		// MD - bail out if not author page
		if ( ! is_author() )
			return;
		
		// MD - get unlocked posts for this user
		$progress_posts = dpa_get_progress( array(
			'author'        => dpa_get_displayed_user_id(),
			'fields'        => 'id=>parent',
			'no_found_rows' => true,
			'nopaging'      => true,
			'numberposts'   => $settings['limit'],
			'post_status'   => dpa_get_unlocked_status_id(),
		) );

		// MD
		if ( empty( $progress_posts ) )
			return;

		// MD
		$achievement_ids = array_unique( array_keys( $progress_posts ) );

		// MD - get the posts
		$achievements = get_posts( array(
			'ignore_sticky_posts' => true,
			'no_found_rows'       => true,
			'post__in'            => $progress_posts,
			'post_status'         => 'publish',
			'post_type'           => dpa_get_achievement_post_type(),
			'suppress_filters'    => false,
		) );

		// Bail if no posts
		if ( empty( $achievements ) )
			return;

		echo $args['before_widget'];

		if ( ! empty( $settings['title'] ) )
			echo $args['before_title'] . $settings['title'] . $args['after_title'];

		echo '<ul>';

		foreach ( $achievements as $post ) {
			if ( has_post_thumbnail( $post->ID ) ) :
			?>

				<li>
					<a href="<?php dpa_achievement_permalink( $post->ID ); ?>"><?php echo get_the_post_thumbnail( $post->ID, 'dpa-thumb', array( 'alt' => dpa_get_achievement_title( $post->ID ) ) ); ?></a>
				</li>

			<?php
			endif;
		}

		echo '</ul>';
		echo $args['after_widget'];
	}
}

MD_Unlocked_Achievements_Widget_Grid::register_widget();
} // function md_widget_wrapper()