comicpress-2.8/classes/ComicPressNavigation.inc

68 lines
2.0 KiB
PHP

<?php
require_once('ComicPressStoryline.inc');
require_once('ComicPressDBInterface.inc');
class ComicPressNavigation {
function init($storyline) {
$this->_storyline = $storyline;
$this->_dbi = ComicPressDBInterface::get_instance();
}
function get_post_nav($post) {
$nav = array();
if (is_object($post)) {
if (isset($post->ID)) {
$cache_key = 'navigation-' . $post->ID;
if (($result = wp_cache_get($cache_key, 'comicpress')) !== false) {
foreach ($result as $key => $post_id) {
$nev[$key] = get_post($post_id);
}
}
// global previous/next
foreach (array('previous', 'next') as $field) {
$nav[$field] = $this->_dbi->{"get_${field}_comic"}(null, $post);
}
// global first/last
foreach (array('first', 'last') as $field) {
$nav[$field] = $this->_dbi->{"get_${field}_comic"}(null);
}
if ($category = $this->_storyline->get_valid_post_category($post->ID)) {
// storyline previous/next
foreach (array('previous', 'next') as $field) {
$nav["storyline-${field}"] = $this->_dbi->{"get_${field}_comic"}($category, $post);
}
// adjacent storyline nodes
if (is_array($valid = $this->_storyline->valid($category))) {
foreach ($valid as $field) {
$all_adjacents = $this->_storyline->all_adjacent($category, $field);
foreach ($all_adjacents as $adjacent_category) {
$result = $this->_dbi->get_first_comic($adjacent_category);
if (!empty($result)) {
$nav["storyline-chapter-${field}"] = $result; break;
}
}
}
}
}
$cache_data = array();
foreach ($nav as $key => $output_post) {
if (!empty($output_post)) { $cache_data[$key] = $output_post->ID; }
if ($output_post->ID == $post->ID) { $nav[$key] = false; }
}
wp_cache_set($cache_key, $cache_data, 'comicpress');
return $nav;
}
}
}
}
?>