Related Posts Shortcode

Related Posts Shortcode

function woo_shortcode_related_posts ( $atts ) {
	global $post, $wp_version;

		wp_reset_query(); // Make sure we have a fresh query before we start.

		$defaults = array(
					'limit' => 5,
					'image' => 0,
					'float' => 'none'
				 );

		$atts = shortcode_atts( $defaults, $atts );

		// This function requires at least WordPress Version 3.1.
		if ( $wp_version < 3.1 ) {
			return _dep_woo_shortcode_related_posts( $atts );
		} else {

		// Sanitize float attribute.
		if ( isset( $atts['float'] ) && ! in_array( $atts['float'], array( 'none', 'left', 'right' ) ) ) { $atts['float'] = 'none'; }

		// Float translation array.
		$floats = array( 'none' => '', 'left' => 'fl', 'right' => 'fr' );

		$css_class = 'woo-sc-related-posts';

		extract( $atts );

		if ( $float != 'none' ) { $css_class .= ' ' . $floats[$float]; }

		$output = '';

		$post_type = get_post_type( $post->ID );

		$post_type_obj = get_post_type_object( $post_type );

		$taxonomies_string = 'post_tag, category';
		$taxonomies = array( 'post_tag', 'category' );

		if ( isset( $post_type_obj->taxonomies ) && count( $post_type_obj->taxonomies ) > 0 ) {
			$taxonomies_string = join( ', ', $post_type_obj->taxonomies );
			$taxonomies = $post_type_obj->taxonomies;
		}

	 	// Clean up our taxonomies for use in the query.
	 	if ( count( $taxonomies ) ) {
	 		foreach ( $taxonomies as $k => $v ) {
	 			$taxonomies[$k] = trim( $v );
	 		}
	 	}

	 	// Determine which terms we're going to relate to this entry.
	 	$related_terms = array();

	 	foreach ( $taxonomies as $t ) {
	 		$terms = get_the_terms( $post->ID, $t );

	 		if ( ! empty( $terms ) ) {
	 			foreach ( $terms as $k => $v ) {
	 				$related_terms[$t][$v->term_id] = $v->slug;
	 			}
	 		}
	 	}

		$specific_terms = array();
		foreach ( $related_terms as $k => $v ) {
			foreach ( $v as $i => $j ) {
				$specific_terms[] = $j;
			}
		}

		$query_args = array(
 						'limit' => $atts['limit'],
 						'post_type' => $post_type,
 						'taxonomies' => $taxonomies_string,
 						'specific_terms' => $specific_terms,
 						'order' => 'DESC',
 						'orderby' => 'date',
 						'exclude' => array( $post->ID )
 					);

		$posts = woo_get_posts_by_taxonomy( $query_args );

		if ( count( (array)$posts ) ) {

			$output .= '<div class="' . $css_class . '">' . "\n";

			$output .= '<ul>' . "\n";

			foreach ( $posts as $post ) {
				setup_postdata( $post );

				if ( $image <= 0 ) {
					$image_html = '';
				} else {
					$image_html = '<a href="' . esc_url( get_permalink( $post->ID ) ) . '" class="thumbnail">' . woo_image( 'link=img&width=' . $image . '&height=' . esc_attr( $image ) . '&return=true&id=' . esc_attr( $post->ID ) ) . '</a>' . "\n";
				}

				$output .= '<li class="post-id-' . esc_attr( $post->ID ) . '">' . "\n" . $image_html . "\n" . '<a href="' . esc_url( get_permalink( $post->ID ) ) . '" title="' . the_title_attribute( array( 'echo' => 0 ) ) . '" class="related-title"><span>' . get_the_title( $post->ID )  . '</span></a>' . "\n" . '</li>' . "\n";
			}

			$output .= '</ul>' . "\n";
			$output .= '<div class="fix"></div><!--/.fix-->' . "\n";
			$output .= '</div><!--/.woo-sc-related-posts-->';
		}

		wp_reset_postdata();

		return apply_filters( 'woo_shortcode_related_posts', $output, $atts );

	} // End IF Statement (version check)
} // End woo_shortcode_related_posts()

add_shortcode( 'related_posts', 'woo_shortcode_related_posts' );