97 lines
2.7 KiB
PHP
97 lines
2.7 KiB
PHP
<?php
|
|
|
|
class ComicPressDBInterface {
|
|
var $_non_comic_categories, $_all_categories;
|
|
|
|
function ComicPressDBInterface() {}
|
|
|
|
function get_instance() {
|
|
static $instance;
|
|
|
|
if (!isset($instance)) {
|
|
$instance = new ComicPressDBInterface();
|
|
}
|
|
return $instance;
|
|
}
|
|
|
|
function set_comic_categories($categories) {
|
|
$this->_non_comic_categories = array();
|
|
$this->_all_categories = array();
|
|
foreach (get_categories("hide_empty=0") as $category_object) {
|
|
$this->_all_categories[] = $category_object->term_id;
|
|
if (!in_array($category_object->term_id, $categories
|
|
$this->categories_by_id[$category_object->term_id] = $category_object;
|
|
}
|
|
|
|
$this->_categories = $categories;
|
|
}
|
|
|
|
/**
|
|
* Find the terminal post in a specific category.
|
|
*/
|
|
function get_terminal_post_in_category($category_id, $first = true) {
|
|
$sort_order = $first ? "asc" : "desc";
|
|
$terminal_comic_query = new WP_Query();
|
|
$terminal_comic_query->query("showposts=1&order=${sort_order}&cat=${category_id}&status=publish");
|
|
if ($terminal_comic_query->have_posts()) {
|
|
return reset($terminal_comic_query->posts);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get the first comic in a category.
|
|
*/
|
|
function get_first_comic($category_id) {
|
|
return $this->get_terminal_post_in_category($category_id);
|
|
}
|
|
|
|
/**
|
|
* Get the last comic in a category.
|
|
*/
|
|
function get_last_comic($category_id) {
|
|
return $this->get_terminal_post_in_category($category_id, false);
|
|
}
|
|
|
|
/**
|
|
* Get the comic post adjacent to the current comic.
|
|
*/
|
|
function get_adjacent_comic($category, $next = false, $override_post = null) {
|
|
global $wp_query, $post;
|
|
$temp = $wp_query->is_single;
|
|
$wp_query->is_single = true;
|
|
|
|
if (!is_null($override_post)) {
|
|
$temp_post = $post;
|
|
$post = $override_post;
|
|
}
|
|
|
|
$categories_to_exclude = $this->get_leaves_of_tree($this->non_comic_categories);
|
|
if (!is_null($category)) {
|
|
$categories_to_exclude = $this->exclude_all_but_provided_categories($category);
|
|
}
|
|
|
|
$result = get_adjacent_post(false, implode(" and ", $categories_to_exclude), !$next);
|
|
|
|
$wp_query->is_single = $temp;
|
|
|
|
if (!is_null($override_post)) {
|
|
$post = $temp_post;
|
|
}
|
|
|
|
return empty($result) ? false : $result;
|
|
}
|
|
|
|
/**
|
|
* Get the previous comic from the current one.
|
|
*/
|
|
function get_previous_comic($category = null, $override_post = null) { return $this->get_adjacent_comic($category, false, $override_post); }
|
|
|
|
/**
|
|
* Get the next comic from the current one.
|
|
*/
|
|
function get_next_comic($category = null, $override_post = null) { return $this->get_adjacent_comic($category, true, $override_post); }
|
|
|
|
}
|
|
|
|
?>
|