Ticket #561: 561.3.diff

plugins/wc-post-types/wc-post-types.php

@@ -256 +256 @@
                         'posts_per_page' => -1,
                         'orderby' => 'date',
                         'order' => 'desc',
+                        'track' => 'all',
                 ), $attr );
 
                 $attr['show_avatars'] = $this->str_to_bool( $attr['show_avatars'] );
                 $attr['orderby'] = ( in_array( $attr['orderby'], array( 'date', 'title', 'rand' ) ) ) ? $attr['orderby'] : 'date';
                 $attr['order'] = ( in_array( $attr['order'], array( 'asc', 'desc') ) ) ? $attr['order'] : 'desc';
 
-                $speakers = new WP_Query( array(
-                        'post_type' => 'wcb_speaker',
-                        'posts_per_page' => intval( $attr['posts_per_page'] ),
-                        'orderby' => $attr['orderby'],
-                        'order' => $attr['order'],
-                ) );
+                // Get track slugs and set transient key
+                $track_slugs = $attr['track'];
+                $transient_key = 'speaker_ids_' . md5( $track_slugs );
 
+                // Get saved speaker IDs if transient exists
+                $speaker_ids = get_transient( $transient_key );
+
+                if( ! $speaker_ids ) {
+
+                        // Fetch all sessions
+                        $session_args = array(
+                        'post_type'   => 'wcb_session',
+                        'posts_per_page' => -1,
+                        );
+
+                        // Filter by track if specified
+                        if( 'all' != $track_slugs ) {
+                                $session_args['tax_query'] = array(
+                        array(
+                            'taxonomy' => 'wcb_track',
+                            'field'    => 'slug',
+                            'terms'    => explode( ',', $track_slugs ),
+                        ),
+                        );
+                        }
+
+                        // Get all relevant sessions
+                        $sessions = get_posts( $session_args );
+
+                        // Get array of relevant speaker IDs
+                        $speaker_ids = array();
+                        foreach ( $sessions as $session ) {
+                        $session_speaker_ids = get_post_meta( $session->ID, '_wcpt_speaker_id' );
+                        $speaker_ids = array_merge( $speaker_ids, $session_speaker_ids );
+                        }
+
+                        // Set transient with speaker IDs to prevent long page load times
+                        set_transient( $transient_key, $speaker_ids, HOUR_IN_SECONDS );
+                }
+
+                // Fetch all specified speakers
+                $speaker_args = array(
+                        'post_type' => 'wcb_speaker',
+                        'posts_per_page' => intval( $attr['posts_per_page'] ),
+                        'post__in' => $speaker_ids,
+                        'orderby' => $attr['orderby'],
+                                'order' => $attr['order'],
+                );
+
+                $speakers = new WP_Query( $speaker_args );
+
                 if ( ! $speakers->have_posts() )
                         return '';
 
@@ -279 +324 @@
 
                         <?php while ( $speakers->have_posts() ) : $speakers->the_post(); ?>
 
-                                <div id="wcorg-speaker-<?php echo sanitize_html_class( $post->post_name ); ?>" class="wcorg-speaker">
+                                <?php
+                                // Get list of speaker tracks for div class
+                                $tracks = get_post_meta( get_the_ID(), '_wcpt_speaker_tracks', false );
+                                $track_class = '';
+                                foreach( $tracks as $track ) {
+                                        $track_class .= ' ' . sanitize_html_class( $track );
+                                }
+                                ?>
+
+                                <div id="wcorg-speaker-<?php echo sanitize_html_class( $post->post_name ); ?>" class="wcorg-speaker<?php echo $track_class; ?>">
                                         <h2><?php the_title(); ?></h2>
                                         <div class="wcorg-speaker-description">
                                                 <?php echo ( $attr['show_avatars'] ) ? get_avatar( get_post_meta( get_the_ID(), '_wcb_speaker_email', true ), absint( $attr['avatar_size'] ) ) : ''; ?>
                                                 <?php the_content(); ?>
                                         </div>
-                                </div>
+                                </div><!-- .wcorg-speaker -->
 
                         <?php endwhile; ?>
 
@@ -293 +347 @@
                 <?php
 
                 wp_reset_postdata();
-                $content = ob_get_contents();
-                ob_end_clean();
+
+                $content = ob_get_clean();
                 return $content;
         }