436 lines
13 KiB
PHP
436 lines
13 KiB
PHP
<?php
|
|
|
|
function get_the_category($id = false) {
|
|
global $post, $category_cache;
|
|
|
|
if ( !$id )
|
|
$id = $post->ID;
|
|
|
|
if ( !isset($category_cache[$id]) )
|
|
update_post_category_cache($id);
|
|
|
|
$categories = $category_cache[$id];
|
|
|
|
if ( !empty($categories) )
|
|
sort($categories);
|
|
else
|
|
$categories = array();
|
|
|
|
return $categories;
|
|
}
|
|
|
|
function get_category_link($category_id) {
|
|
global $wp_rewrite;
|
|
$catlink = $wp_rewrite->get_category_permastruct();
|
|
|
|
if ( empty($catlink) ) {
|
|
$file = get_settings('home') . '/';
|
|
$catlink = $file . '?cat=' . $category_id;
|
|
} else {
|
|
$category = &get_category($category_id);
|
|
$category_nicename = $category->category_nicename;
|
|
|
|
if ( $parent = $category->category_parent )
|
|
$category_nicename = get_category_parents($parent, false, '/', true) . $category_nicename . '/';
|
|
|
|
$catlink = str_replace('%category%', $category_nicename, $catlink);
|
|
$catlink = get_settings('home') . trailingslashit($catlink);
|
|
}
|
|
return apply_filters('category_link', $catlink, $category_id);
|
|
}
|
|
|
|
function get_the_category_list($separator = '', $parents='') {
|
|
$categories = get_the_category();
|
|
if (empty($categories))
|
|
return apply_filters('the_category', __('Uncategorized'), $separator, $parents);
|
|
|
|
$thelist = '';
|
|
if ( '' == $separator ) {
|
|
$thelist .= '<ul class="post-categories">';
|
|
foreach ( $categories as $category ) {
|
|
$thelist .= "\n\t<li>";
|
|
switch ( strtolower($parents) ) {
|
|
case 'multiple':
|
|
if ($category->category_parent)
|
|
$thelist .= get_category_parents($category->category_parent, TRUE);
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
|
|
break;
|
|
case 'single':
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . ' rel="category tag">';
|
|
if ($category->category_parent)
|
|
$thelist .= get_category_parents($category->category_parent, FALSE);
|
|
$thelist .= $category->cat_name.'</a></li>';
|
|
break;
|
|
case '':
|
|
default:
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
|
|
}
|
|
}
|
|
$thelist .= '</ul>';
|
|
} else {
|
|
$i = 0;
|
|
foreach ( $categories as $category ) {
|
|
if ( 0 < $i )
|
|
$thelist .= $separator . ' ';
|
|
switch ( strtolower($parents) ) {
|
|
case 'multiple':
|
|
if ( $category->category_parent )
|
|
$thelist .= get_category_parents($category->category_parent, TRUE);
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
|
|
break;
|
|
case 'single':
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">';
|
|
if ( $category->category_parent )
|
|
$thelist .= get_category_parents($category->category_parent, FALSE);
|
|
$thelist .= "$category->cat_name</a>";
|
|
break;
|
|
case '':
|
|
default:
|
|
$thelist .= '<a href="' . get_category_link($category->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
|
|
}
|
|
++$i;
|
|
}
|
|
}
|
|
return apply_filters('the_category', $thelist, $separator, $parents);
|
|
}
|
|
|
|
function the_category($separator = '', $parents='') {
|
|
echo get_the_category_list($separator, $parents);
|
|
}
|
|
|
|
function get_the_category_by_ID($cat_ID) {
|
|
$cat_ID = (int) $cat_ID;
|
|
$category = &get_category($cat_ID);
|
|
return $category->cat_name;
|
|
}
|
|
|
|
function get_category_parents($id, $link = FALSE, $separator = '/', $nicename = FALSE){
|
|
$chain = '';
|
|
$parent = &get_category($id);
|
|
|
|
if ( $nicename )
|
|
$name = $parent->category_nicename;
|
|
else
|
|
$name = $parent->cat_name;
|
|
|
|
if ( $parent->category_parent )
|
|
$chain .= get_category_parents($parent->category_parent, $link, $separator, $nicename);
|
|
|
|
if ( $link )
|
|
$chain .= '<a href="' . get_category_link($parent->cat_ID) . '" title="' . sprintf(__("View all posts in %s"), $parent->cat_name) . '">'.$name.'</a>' . $separator;
|
|
else
|
|
$chain .= $name.$separator;
|
|
return $chain;
|
|
}
|
|
|
|
function get_category_children($id, $before = '/', $after = '') {
|
|
if ( 0 == $id )
|
|
return '';
|
|
|
|
$cat_ids = get_all_category_ids();
|
|
foreach ( $cat_ids as $cat_id ) {
|
|
if ( $cat_id == $id)
|
|
continue;
|
|
|
|
$category = get_category($cat_id);
|
|
if ( $category->category_parent == $id ) {
|
|
$chain .= $before.$category->cat_ID.$after;
|
|
$chain .= get_category_children($category->cat_ID, $before, $after);
|
|
}
|
|
}
|
|
return $chain;
|
|
}
|
|
|
|
function category_description($category = 0) {
|
|
global $cat;
|
|
if ( !$category )
|
|
$category = $cat;
|
|
$category = & get_category($category);
|
|
return apply_filters('category_description', $category->category_description, $category->cat_ID);
|
|
}
|
|
|
|
function wp_dropdown_categories($args = '') {
|
|
if ( is_array($args) )
|
|
$r = &$args;
|
|
else
|
|
parse_str($args, $r);
|
|
|
|
$defaults = array('show_option_all' => '', 'show_option_none' => '', 'orderby' => 'ID',
|
|
'order' => 'ASC', 'show_last_update' => 0, 'show_count' => 0,
|
|
'hide_empty' => 1, 'child_of' => 0, 'exclude' => '', 'echo' => 1,
|
|
'selected' => 0, 'hierarchical' => 0, 'name' => 'cat',
|
|
'class' => 'postform');
|
|
$r = array_merge($defaults, $r);
|
|
$r['include_last_update_time'] = $r['show_last_update'];
|
|
extract($r);
|
|
|
|
$categories = get_categories($r);
|
|
|
|
$output = '';
|
|
if ( ! empty($categories) ) {
|
|
$output = "<select name='$name' class='$class'>\n";
|
|
|
|
if ( $show_option_all ) {
|
|
$show_option_all = apply_filters('list_cats', $show_option_all);
|
|
$output .= "\t<option value='0'>$show_option_all</option>\n";
|
|
}
|
|
|
|
if ( $show_option_none) {
|
|
$show_option_none = apply_filters('list_cats', $show_option_none);
|
|
$output .= "\t<option value='-1'>$show_option_none</option>\n";
|
|
}
|
|
|
|
if ( $hierarchical )
|
|
$depth = 0; // Walk the full depth.
|
|
else
|
|
$depth = -1; // Flat.
|
|
|
|
$output .= walk_category_tree($categories, $depth, '_category_dropdown_element', '', '', '', $selected, $r);
|
|
$output .= "</select>\n";
|
|
}
|
|
|
|
$output = apply_filters('wp_dropdown_cats', $output);
|
|
|
|
if ( $echo )
|
|
echo $output;
|
|
|
|
return $output;
|
|
}
|
|
|
|
function _category_dropdown_element($output, $category, $depth, $selected, $args) {
|
|
$pad = str_repeat(' ', $depth * 3);
|
|
|
|
$cat_name = apply_filters('list_cats', $category->cat_name, $category);
|
|
$output .= "\t<option value=\"".$category->cat_ID."\"";
|
|
if ( $category->cat_ID == $selected )
|
|
$output .= ' selected="selected"';
|
|
$output .= '>';
|
|
$output .= $cat_name;
|
|
if ( $args['show_count'] )
|
|
$output .= ' ('. $category->category_count .')';
|
|
if ( $args['show_last_update'] ) {
|
|
$format = 'Y-m-d';
|
|
$output .= ' ' . gmdate($format, $category->last_update_timestamp);
|
|
}
|
|
$output .= "</option>\n";
|
|
|
|
return $output;
|
|
}
|
|
|
|
function wp_list_categories($args = '') {
|
|
if ( is_array($args) )
|
|
$r = &$args;
|
|
else
|
|
parse_str($args, $r);
|
|
|
|
$defaults = array('show_option_all' => '', 'orderby' => 'ID',
|
|
'order' => 'asc', 'style' => 'list', 'show_last_update' => 0,
|
|
'show_count' => 0, 'hide_empty' => 1, 'use_desc_for_title' => 1,
|
|
'child_of' => 0, 'feed' => '', 'feed_image' => '', 'exclude' => '',
|
|
'hierarchical' => false, 'title_li' => '');
|
|
$r = array_merge($defaults, $r);
|
|
$r['include_last_update_time'] = $r['show_date'];
|
|
extract($r);
|
|
|
|
$categories = get_categories($r);
|
|
|
|
$output = '';
|
|
if ( $title_li && $list )
|
|
$output = '<li class="categories">' . $r['title_li'] . '<ul>';
|
|
|
|
if ( empty($categories) ) {
|
|
if ( $list)
|
|
$output .= '<li>' . __("No categories") . '</li>';
|
|
else
|
|
$output .= __("No categories");
|
|
} else {
|
|
global $wp_query;
|
|
$current_category = $wp_query->get_queried_object_id();
|
|
if ( $hierarchical )
|
|
$depth = 0; // Walk the full depth.
|
|
else
|
|
$depth = -1; // Flat.
|
|
|
|
$output .= walk_category_tree($categories, $depth, '_category_list_element_start', '_category_list_element_end', '_category_list_level_start', '_category_list_level_end', $current_category, $r);
|
|
}
|
|
|
|
if ( $title_li && $list )
|
|
$output .= '</ul></li>';
|
|
|
|
echo apply_filters('list_cats', $output);
|
|
}
|
|
|
|
function _category_list_level_start($output, $depth, $cat, $args) {
|
|
if ( 'list' != $args['style'] )
|
|
return $output;
|
|
|
|
$indent = str_repeat("\t", $depth);
|
|
$output .= "$indent<ul class='children'>\n";
|
|
return $output;
|
|
}
|
|
|
|
function _category_list_level_end($output, $depth, $cat, $args) {
|
|
if ( 'list' != $args['style'] )
|
|
return $output;
|
|
|
|
$indent = str_repeat("\t", $depth);
|
|
$output .= "$indent</ul>\n";
|
|
return $output;
|
|
}
|
|
|
|
function _category_list_element_start($output, $category, $depth, $current_category, $args) {
|
|
extract($args);
|
|
|
|
$link = '<a href="' . get_category_link($category->cat_ID) . '" ';
|
|
if ( $use_desc_for_title == 0 || empty($category->category_description) )
|
|
$link .= 'title="'. sprintf(__("View all posts filed under %s"), wp_specialchars($category->cat_name)) . '"';
|
|
else
|
|
$link .= 'title="' . wp_specialchars(apply_filters('category_description',$category->category_description,$category)) . '"';
|
|
$link .= '>';
|
|
$link .= apply_filters('list_cats', $category->cat_name, $category).'</a>';
|
|
|
|
if ( (! empty($feed_image)) || (! empty($feed)) ) {
|
|
$link .= ' ';
|
|
|
|
if ( empty($feed_image) )
|
|
$link .= '(';
|
|
|
|
$link .= '<a href="' . get_category_rss_link(0, $category->cat_ID, $category->category_nicename) . '"';
|
|
|
|
if ( !empty($feed) ) {
|
|
$title = ' title="' . $feed . '"';
|
|
$alt = ' alt="' . $feed . '"';
|
|
$name = $feed;
|
|
$link .= $title;
|
|
}
|
|
|
|
$link .= '>';
|
|
|
|
if ( !empty($feed_image) )
|
|
$link .= "<img src='$feed_image' $alt$title" . ' />';
|
|
else
|
|
$link .= $name;
|
|
$link .= '</a>';
|
|
if (empty($feed_image))
|
|
$link .= ')';
|
|
}
|
|
|
|
if ( $show_count )
|
|
$link .= ' ('.intval($category->category_count).')';
|
|
|
|
if ( $show_date ) {
|
|
$link .= ' ' . gmdate('Y-m-d', $category->last_update_timestamp);
|
|
}
|
|
|
|
if ( 'list' == $args['style'] ) {
|
|
$output .= "\t<li";
|
|
if ( ($category->cat_ID == $current_category) && is_category() )
|
|
$output .= ' class="current-cat"';
|
|
$output .= ">$link\n";
|
|
} else {
|
|
$output .= "\t$link<br />\n";
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
function _category_list_element_end($output, $category, $depth, $cat, $args) {
|
|
if ( 'list' != $args['style'] )
|
|
return $output;
|
|
|
|
$output .= "</li>\n";
|
|
return $output;
|
|
}
|
|
|
|
function in_category($category) { // Check if the current post is in the given category
|
|
global $category_cache, $post;
|
|
|
|
if ( isset( $category_cache[$post->ID][$category] ) )
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
function &_get_cat_children($category_id, $categories) {
|
|
if ( empty($categories) )
|
|
return array();
|
|
|
|
$category_list = array();
|
|
foreach ( $categories as $category ) {
|
|
if ( $category->category_parent == $category_id ) {
|
|
$category_list[] = $category;
|
|
if ( $children = _get_cat_children($category->cat_ID, $categories) )
|
|
$category_list = array_merge($category_list, $children);
|
|
}
|
|
}
|
|
|
|
return $category_list;
|
|
}
|
|
|
|
function &get_categories($args = '') {
|
|
global $wpdb, $category_links;
|
|
|
|
if ( is_array($args) )
|
|
$r = &$args;
|
|
else
|
|
parse_str($args, $r);
|
|
|
|
$defaults = array('type' => 'post', 'child_of' => 0, 'orderby' => 'name', 'order' => 'ASC',
|
|
'hide_empty' => true, 'include_last_update_time' => false, 'hierarchical' => 1);
|
|
$r = array_merge($defaults, $r);
|
|
$r['orderby'] = "cat_" . $r['orderby'];
|
|
extract($r);
|
|
|
|
$exclusions = '';
|
|
$having = '';
|
|
$where = 'cat_ID > 0';
|
|
|
|
$exclusions = '';
|
|
if ( !empty($exclude) ) {
|
|
$excategories = preg_split('/[\s,]+/',$exclude);
|
|
if ( count($excategories) ) {
|
|
foreach ( $excategories as $excat ) {
|
|
$exclusions .= ' AND cat_ID <> ' . intval($excat) . ' ';
|
|
// TODO: Exclude children of excluded cats?
|
|
}
|
|
}
|
|
}
|
|
$exclusions = apply_filters('list_cats_exclusions', $exclusions );
|
|
$where .= $exclusions;
|
|
|
|
if ( $hide_empty ) {
|
|
if ( 'link' == $type )
|
|
$having = 'HAVING link_count > 0';
|
|
else
|
|
$having = 'HAVING category_count > 0';
|
|
}
|
|
|
|
$categories = $wpdb->get_results("SELECT * FROM $wpdb->categories WHERE $where $having ORDER BY $orderby $order");
|
|
|
|
if ( empty($categories) )
|
|
return array();
|
|
|
|
// TODO: Integrate this into the main query.
|
|
if ( $include_last_update_time ) {
|
|
$stamps = $wpdb->get_results("SELECT category_id, UNIX_TIMESTAMP( MAX(post_date) ) AS ts FROM $wpdb->posts, $wpdb->post2cat, $wpdb->categories
|
|
WHERE post_status = 'publish' AND post_id = ID AND $where GROUP BY category_id");
|
|
global $cat_stamps;
|
|
foreach ($stamps as $stamp)
|
|
$cat_stamps[$stamp->category_id] = $stamp->ts;
|
|
function stamp_cat($cat) {
|
|
global $cat_stamps;
|
|
$cat->last_update_timestamp = $cat_stamps[$cat->cat_ID];
|
|
return $cat;
|
|
}
|
|
$categories = array_map('stamp_cat', $categories);
|
|
unset($cat_stamps);
|
|
}
|
|
|
|
if ( $child_of || $hierarchical )
|
|
$categories = & _get_cat_children($child_of, $categories);
|
|
|
|
return $categories;
|
|
}
|
|
|
|
?>
|