417 lines
16 KiB
PHP
417 lines
16 KiB
PHP
<?php
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function get_the_category($id = false) {
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global $post, $wpdb, $category_cache;
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if (! $id) {
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$id = $post->ID;
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}
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if ($category_cache[$id]) {
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$categories = $category_cache[$id];
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} else {
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$categories = $wpdb->get_results("
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SELECT category_id, cat_name, category_nicename, category_description, category_parent
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FROM $wpdb->categories, $wpdb->post2cat
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WHERE $wpdb->post2cat.category_id = cat_ID AND $wpdb->post2cat.post_id = '$id'
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");
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}
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if (!empty($categories))
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sort($categories);
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return $categories;
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}
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function get_category_link($echo = false, $category_id, $category_nicename) {
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global $wpdb, $wp_rewrite, $post, $querystring_start, $querystring_equal, $cache_categories;
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$cat_ID = $category_id;
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$catlink = $wp_rewrite->get_category_permastruct();
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if (empty($catlink)) {
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$file = get_settings('home') . '/';
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$catlink = $file.$querystring_start.'cat'.$querystring_equal.$cat_ID;
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} else {
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$category_nicename = $cache_categories[$category_id]->category_nicename;
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if ($parent=$cache_categories[$category_id]->category_parent) $category_nicename = get_category_parents($parent, FALSE, '/', TRUE) . $category_nicename . '/';
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$catlink = str_replace('%category%', $category_nicename, $catlink);
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$catlink = get_settings('home') . trailingslashit($catlink);
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}
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$catlink = apply_filters('category_link', $catlink);
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if ($echo) echo $catlink;
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return $catlink;
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}
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function the_category($separator = '', $parents='') {
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$categories = get_the_category();
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if (empty($categories)) {
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_e('Uncategorized');
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return;
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}
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$thelist = '';
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if ('' == $separator) {
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$thelist .= '<ul class="post-categories">';
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foreach ($categories as $category) {
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$category->cat_name = $category->cat_name;
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$thelist .= "\n\t<li>";
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switch(strtolower($parents)) {
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case 'multiple':
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if ($category->category_parent) {
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$thelist .= get_category_parents($category->category_parent, TRUE);
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}
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
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break;
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case 'single':
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . ' rel="category tag">';
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if ($category->category_parent) {
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$thelist .= get_category_parents($category->category_parent, FALSE);
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}
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$thelist .= $category->cat_name.'</a></li>';
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break;
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case '':
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default:
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a></li>';
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}
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}
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$thelist .= '</ul>';
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} else {
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$i = 0;
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foreach ($categories as $category) {
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$category->cat_name = $category->cat_name;
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if (0 < $i) $thelist .= $separator . ' ';
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switch(strtolower($parents)) {
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case 'multiple':
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if ($category->category_parent) $thelist .= get_category_parents($category->category_parent, TRUE);
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
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break;
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case 'single':
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">';
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if ($category->category_parent) $thelist .= get_category_parents($category->category_parent, FALSE);
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$thelist .= "$category->cat_name</a>";
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break;
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case '':
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default:
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$thelist .= '<a href="' . get_category_link(0, $category->category_id, $category->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $category->cat_name) . '" rel="category tag">'.$category->cat_name.'</a>';
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}
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++$i;
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}
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}
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echo apply_filters('the_category', $thelist);
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}
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function get_the_category_by_ID($cat_ID) {
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global $cache_categories, $wpdb;
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if ( !$cache_categories[$cat_ID] ) {
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$cat_name = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE cat_ID = '$cat_ID'");
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$cache_categories[$cat_ID]->cat_name = $cat_name;
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} else {
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$cat_name = $cache_categories[$cat_ID]->cat_name;
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}
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return($cat_name);
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}
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function get_category_parents($id, $link = FALSE, $separator = '/', $nicename = FALSE){
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global $cache_categories;
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$chain = '';
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$parent = $cache_categories[$id];
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if ($nicename) {
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$name = $parent->category_nicename;
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} else {
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$name = $parent->cat_name;
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}
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if ($parent->category_parent) $chain .= get_category_parents($parent->category_parent, $link, $separator, $nicename);
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if ($link) {
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$chain .= '<a href="' . get_category_link(0, $parent->cat_ID, $parent->category_nicename) . '" title="' . sprintf(__("View all posts in %s"), $parent->cat_name) . '">'.$name.'</a>' . $separator;
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} else {
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$chain .= $name.$separator;
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}
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return $chain;
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}
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function get_category_children($id, $before = '/', $after = '') {
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global $cache_categories;
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$c_cache = $cache_categories; // Can't do recursive foreach on a global, have to make a copy
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$chain = '';
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foreach ($c_cache as $category){
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if ($category->category_parent == $id){
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$chain .= $before.$category->cat_ID.$after;
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$chain .= get_category_children($category->cat_ID, $before, $after);
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}
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}
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return $chain;
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}
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// Deprecated.
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function the_category_ID($echo = true) {
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// Grab the first cat in the list.
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$categories = get_the_category();
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$cat = $categories[0]->category_id;
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if ($echo) echo $cat;
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return $cat;
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}
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// Deprecated.
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function the_category_head($before='', $after='') {
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global $currentcat, $previouscat;
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// Grab the first cat in the list.
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$categories = get_the_category();
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$currentcat = $categories[0]->category_id;
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if ($currentcat != $previouscat) {
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echo $before;
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echo get_the_category_by_ID($currentcat);
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echo $after;
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$previouscat = $currentcat;
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}
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}
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function category_description($category = 0) {
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global $cat, $wpdb, $cache_categories;
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if (!$category) $category = $cat;
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$category_description = $cache_categories[$category]->category_description;
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$category_description = apply_filters('category_description', $category_description);
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return $category_description;
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}
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// out of the WordPress loop
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function dropdown_cats($optionall = 1, $all = 'All', $sort_column = 'ID', $sort_order = 'asc',
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$optiondates = 0, $optioncount = 0, $hide_empty = 1, $optionnone=FALSE,
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$selected=0, $hide=0) {
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global $wpdb;
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global $querystring_start, $querystring_equal, $querystring_separator;
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if (($file == 'blah') || ($file == '')) $file = get_settings('home') . '/';
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if (!$selected) $selected=$cat;
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$sort_column = 'cat_'.$sort_column;
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$query = "
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SELECT cat_ID, cat_name, category_nicename,category_parent,
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COUNT($wpdb->post2cat.post_id) AS cat_count,
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DAYOFMONTH(MAX(post_date)) AS lastday, MONTH(MAX(post_date)) AS lastmonth
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FROM $wpdb->categories LEFT JOIN $wpdb->post2cat ON (cat_ID = category_id)
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LEFT JOIN $wpdb->posts ON (ID = post_id)
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WHERE cat_ID > 0
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";
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if ($hide) {
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$query .= " AND cat_ID != $hide";
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$query .= get_category_children($hide, " AND cat_ID != ");
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}
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$query .=" GROUP BY cat_ID";
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if (intval($hide_empty) == 1) $query .= " HAVING cat_count > 0";
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$query .= " ORDER BY $sort_column $sort_order, post_date DESC";
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$categories = $wpdb->get_results($query);
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echo "<select name='cat' class='postform'>\n";
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if (intval($optionall) == 1) {
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$all = apply_filters('list_cats', $all);
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echo "\t<option value='all'>$all</option>\n";
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}
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if (intval($optionnone) == 1) echo "\t<option value='0'>None</option>\n";
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if ($categories) {
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foreach ($categories as $category) {
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$cat_name = apply_filters('list_cats', $category->cat_name);
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echo "\t<option value=\"".$category->cat_ID."\"";
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if ($category->cat_ID == $selected)
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echo ' selected="selected"';
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echo '>';
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echo $cat_name;
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if (intval($optioncount) == 1) echo ' ('.$category->cat_count.')';
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if (intval($optiondates) == 1) echo ' '.$category->lastday.'/'.$category->lastmonth;
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echo "</option>\n";
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}
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}
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echo "</select>\n";
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}
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// out of the WordPress loop
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function wp_list_cats($args = '') {
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parse_str($args, $r);
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if (!isset($r['optionall'])) $r['optionall'] = 0;
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if (!isset($r['all'])) $r['all'] = 'All';
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if (!isset($r['sort_column'])) $r['sort_column'] = 'ID';
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if (!isset($r['sort_order'])) $r['sort_order'] = 'asc';
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if (!isset($r['file'])) $r['file'] = '';
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if (!isset($r['list'])) $r['list'] = true;
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if (!isset($r['optiondates'])) $r['optiondates'] = 0;
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if (!isset($r['optioncount'])) $r['optioncount'] = 0;
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if (!isset($r['hide_empty'])) $r['hide_empty'] = 1;
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if (!isset($r['use_desc_for_title'])) $r['use_desc_for_title'] = 1;
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if (!isset($r['children'])) $r['children'] = true;
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if (!isset($r['child_of'])) $r['child_of'] = 0;
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if (!isset($r['categories'])) $r['categories'] = 0;
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if (!isset($r['recurse'])) $r['recurse'] = 0;
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if (!isset($r['feed'])) $r['feed'] = '';
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if (!isset($r['feed_image'])) $r['feed_image'] = '';
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if (!isset($r['exclude'])) $r['exclude'] = '';
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if (!isset($r['hierarchical'])) $r['hierarchical'] = true;
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list_cats($r['optionall'], $r['all'], $r['sort_column'], $r['sort_order'], $r['file'], $r['list'], $r['optiondates'], $r['optioncount'], $r['hide_empty'], $r['use_desc_for_title'], $r['children'], $r['child_of'], $r['categories'], $r['recurse'], $r['feed'], $r['feed_image'], $r['exclude'], $r['hierarchical']);
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}
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function list_cats($optionall = 1, $all = 'All', $sort_column = 'ID', $sort_order = 'asc', $file = '', $list = true, $optiondates = 0, $optioncount = 0, $hide_empty = 1, $use_desc_for_title = 1, $children=FALSE, $child_of=0, $categories=0, $recurse=0, $feed = '', $feed_image = '', $exclude = '', $hierarchical=FALSE) {
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global $wpdb, $category_posts;
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global $querystring_start, $querystring_equal, $querystring_separator;
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// Optiondates now works
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if ('' == $file) {
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$file = get_settings('home') . '/';
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}
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$exclusions = '';
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if (!empty($exclude)) {
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$excats = preg_split('/[\s,]+/',$exclude);
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if (count($excats)) {
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foreach ($excats as $excat) {
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$exclusions .= ' AND cat_ID <> ' . intval($excat) . ' ';
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}
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}
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}
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if (intval($categories)==0){
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$sort_column = 'cat_'.$sort_column;
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$query = "
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SELECT cat_ID, cat_name, category_nicename, category_description, category_parent
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FROM $wpdb->categories
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WHERE cat_ID > 0 $exclusions
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ORDER BY $sort_column $sort_order";
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$categories = $wpdb->get_results($query);
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}
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if (!count($category_posts)) {
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$cat_counts = $wpdb->get_results(" SELECT cat_ID,
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COUNT($wpdb->post2cat.post_id) AS cat_count
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FROM $wpdb->categories
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INNER JOIN $wpdb->post2cat ON (cat_ID = category_id)
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INNER JOIN $wpdb->posts ON (ID = post_id)
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WHERE post_status = 'publish' $exclusions
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GROUP BY category_id");
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if (! empty($cat_counts)) {
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foreach ($cat_counts as $cat_count) {
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if (1 != intval($hide_empty) || $cat_count > 0) {
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$category_posts["$cat_count->cat_ID"] = $cat_count->cat_count;
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}
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}
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}
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}
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if ( $optiondates ) {
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$cat_dates = $wpdb->get_results(" SELECT category_id,
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UNIX_TIMESTAMP( MAX(post_date) ) AS ts
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FROM $wpdb->posts, $wpdb->post2cat
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WHERE post_status = 'publish' AND post_id = ID $exclusions
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GROUP BY category_id");
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foreach ($cat_dates as $cat_date) {
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$category_timestamp["$cat_date->category_id"] = $cat_date->ts;
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}
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}
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if (intval($optionall) == 1 && !$child_of && $categories) {
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$all = apply_filters('list_cats', $all);
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$link = "<a href=\"".$file.$querystring_start.'cat'.$querystring_equal.'all">'.$all."</a>";
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if ($list) {
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echo "\n\t<li>$link</li>";
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} else {
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echo "\t$link<br />\n";
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}
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}
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$num_found=0;
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$thelist = "";
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foreach ($categories as $category) {
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if ((intval($hide_empty) == 0 || isset($category_posts["$category->cat_ID"])) && (!$hierarchical || $category->category_parent == $child_of) ) {
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$num_found++;
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$link = '<a href="'.get_category_link(0, $category->cat_ID, $category->category_nicename).'" ';
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if ($use_desc_for_title == 0 || empty($category->category_description)) {
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$link .= 'title="'. sprintf(__("View all posts filed under %s"), wp_specialchars($category->cat_name)) . '"';
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} else {
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$link .= 'title="' . wp_specialchars(apply_filters('category_description',$category->category_description)) . '"';
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}
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$link .= '>';
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$link .= apply_filters('list_cats', $category->cat_name).'</a>';
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if ( (! empty($feed_image)) || (! empty($feed)) ) {
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$link .= ' ';
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if (empty($feed_image)) {
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$link .= '(';
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}
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$link .= '<a href="' . get_category_rss_link(0, $category->cat_ID, $category->category_nicename) . '"';
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if ( !empty($feed) ) {
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$title = ' title="' . $feed . '"';
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$alt = ' alt="' . $feed . '"';
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$name = $feed;
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$link .= $title;
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}
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$link .= '>';
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if (! empty($feed_image)) {
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$link .= "<img src='$feed_image' $alt$title" . ' />';
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} else {
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$link .= $name;
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}
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$link .= '</a>';
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if (empty($feed_image)) {
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$link .= ')';
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}
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}
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if (intval($optioncount) == 1) {
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$link .= ' ('.intval($category_posts["$category->cat_ID"]).')';
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}
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if ( $optiondates ) {
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if ( $optiondates == 1 ) $optiondates = 'Y-m-d';
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$link .= ' ' . gmdate($optiondates, $category_timestamp["$category->cat_ID"]);
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}
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if ($list) {
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$thelist .= "\t<li>$link\n";
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} else {
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$thelist .= "\t$link<br />\n";
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}
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if ($hierarchical && $children) $thelist .= list_cats($optionall, $all, $sort_column, $sort_order, $file, $list, $optiondates, $optioncount, $hide_empty, $use_desc_for_title, $hierarchical, $category->cat_ID, $categories, 1, $feed, $feed_image, $exclude, $hierarchical);
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if ($list) $thelist .= "</li>\n";
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}
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}
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if (!$num_found && !$child_of){
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if ($list) {
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$before = '<li>';
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$after = '</li>';
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}
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echo $before . __("No categories") . $after . "\n";
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return;
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}
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if ($list && $child_of && $num_found && $recurse) {
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$pre = "\t\t<ul class='children'>";
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$post = "\t\t</ul>\n";
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} else {
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$pre = $post = '';
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}
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$thelist = $pre . $thelist . $post;
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if ($recurse) {
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return $thelist;
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}
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echo apply_filters('list_cats', $thelist);
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}
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function in_category($category) { // Check if the current post is in the given category
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global $post, $category_cache;
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$cats = '';
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foreach ($category_cache[$post->ID] as $cat) :
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$cats[] = $cat->category_id;
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endforeach;
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if ( in_array($category, $cats) )
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return true;
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else
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return false;
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}
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?>
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