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