106 lines
3.0 KiB
PHP
106 lines
3.0 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 $instance;
|
|
}
|
|
|
|
function _get_categories() { return get_categories("hide_empty=0"); }
|
|
|
|
/**
|
|
* Set the comic categories for the current run of ComicPress.
|
|
*/
|
|
function set_comic_categories($categories) {
|
|
$this->_all_categories = get_all_category_ids();
|
|
$this->_non_comic_categories = array_values(array_diff($this->_all_categories, $categories));
|
|
}
|
|
|
|
function _get_categories_to_exclude($category = null) {
|
|
return (is_null($category)) ? $this->_non_comic_categories : array_values(array_diff($this->_all_categories, array($category)));
|
|
}
|
|
|
|
/**
|
|
* Find the terminal post in a specific category.
|
|
*/
|
|
function get_terminal_post_in_category($category_id, $first = true) {
|
|
$this->_prepare_wp_query();
|
|
|
|
$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");
|
|
$post = false;
|
|
if ($terminal_comic_query->have_posts()) {
|
|
$post = reset($terminal_comic_query->posts);
|
|
}
|
|
|
|
$this->_reset_wp_query();
|
|
return $post;
|
|
}
|
|
|
|
/**
|
|
* Get the first comic in a category.
|
|
*/
|
|
function get_first_comic($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.
|
|
* Wrapper around get_adjacent_post(). Don't unit test this method.
|
|
*/
|
|
function get_adjacent_comic($category, $next = false, $override_post = null) {
|
|
global $post;
|
|
|
|
$this->_prepare_wp_query();
|
|
if (!is_null($override_post)) { $temp_post = $post; $post = $override_post; }
|
|
|
|
$result = get_adjacent_post(false, implode(" and ", $this->_get_categories_to_exclude($category)), !$next);
|
|
|
|
$this->_reset_wp_query();
|
|
if (!is_null($override_post)) { $post = $temp_post; }
|
|
|
|
return empty($result) ? false : $result;
|
|
}
|
|
|
|
function _prepare_wp_query() {
|
|
global $wp_query;
|
|
|
|
$this->is_single = $wp_query->is_single;
|
|
$this->in_the_loop = $wp_query->in_the_loop;
|
|
|
|
$wp_query->is_single = $wp_query->in_the_loop = true;
|
|
}
|
|
|
|
function _reset_wp_query() {
|
|
global $wp_query;
|
|
|
|
$wp_query->is_single = $this->is_single;
|
|
$wp_query->in_the_loop = $this->in_the_loop;
|
|
}
|
|
|
|
/**
|
|
* Get the previous comic from the current one.
|
|
*/
|
|
function get_previous_comic($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); }
|
|
}
|
|
|
|
?>
|