| <?php |
| |
| function get_category_children($id, $before = '/', $after = '') { |
| if ( 0 == $id ) |
| return ''; |
| |
| $chain = ''; |
| |
| $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 $chain; |
| } |
| |
| function get_category_link($category_id) { |
| global $wp_rewrite; |
| $catlink = $wp_rewrite->get_category_permastruct(); |
| |
| if ( empty($catlink) ) { |
| $file = get_option('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); |
| $catlink = get_option('home') . user_trailingslashit($catlink, 'category'); |
| } |
| return apply_filters('category_link', $catlink, $category_id); |
| } |
| |
| function get_category_parents($id, $link = FALSE, $separator = '/', $nicename = FALSE){ |
| $chain = ''; |
| $parent = &get_category($id); |
| |
| if ( $nicename ) |
| $name = $parent->category_nicename; |
| else |
| $name = $parent->cat_name; |
| |
| if ( $parent->category_parent && ($parent->category_parent != $parent->cat_ID) ) |
| $chain .= get_category_parents($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 $chain; |
| } |
| |
| function get_the_category($id = false) { |
| global $post, $category_cache, $blog_id; |
| |
| $id = (int) $id; |
| if ( !$id ) |
| $id = (int) $post->ID; |
| |
| if ( !isset($category_cache[$blog_id][$id]) ) |
| update_post_category_cache($id); |
| |
| $categories = $category_cache[$blog_id][$id]; |
| |
| if ( !empty($categories) ) |
| usort($categories, '_get_the_category_usort'); |
| else |
| $categories = array(); |
| |
| return $categories; |
| } |
| |
| function _get_the_category_usort($a, $b) { |
| return strcmp($a->category_name, $b->category_name); |
| } |
| |
| function get_the_category_by_ID($cat_ID) { |
| $cat_ID = (int) $cat_ID; |
| $category = &get_category($cat_ID); |
| return $category->cat_name; |
| } |
| |
| function get_the_category_list($separator = '', $parents='') { |
| global $wp_rewrite; |
| $categories = get_the_category(); |
| if (empty($categories)) |
| return apply_filters('the_category', __('Uncategorized'), $separator, $parents); |
| |
| $rel = ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) ? 'rel="category tag"' : 'rel="category"'; |
| |
| $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->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) . '" ' . $rel . '>'; |
| if ($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->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->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 . '>'; |
| 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 . '>' . $category->cat_name.'</a>'; |
| } |
| ++$i; |
| } |
| } |
| return apply_filters('the_category', $thelist, $separator, $parents); |
| } |
| |
| function in_category($category) { // Check if the current post is in the given category |
| global $category_cache, $post, $blog_id; |
| |
| if ( isset( $category_cache[$blog_id][$post->ID][$category] ) ) |
| return true; |
| else |
| return false; |
| } |
| |
| function the_category($separator = '', $parents='') { |
| echo get_the_category_list($separator, $parents); |
| } |
| |
| function category_description($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'); |
| $defaults['selected'] = ( is_category() ) ? get_query_var('cat') : 0; |
| $r = array_merge($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' id='$name' class='$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. |
| |
| $output .= walk_category_dropdown_tree($categories, $depth, $r); |
| $output .= "</select>\n"; |
| } |
| |
| $output = apply_filters('wp_dropdown_cats', $output); |
| |
| if ( $echo ) |
| echo $output; |
| |
| return $output; |
| } |
| |
| function wp_list_categories($args = '') { |
| if ( is_array($args) ) |
| $r = &$args; |
| else |
| parse_str($args, $r); |
| |
| $defaults = array('show_option_all' => '', 'orderby' => 'name', |
| 'order' => 'ASC', 'show_last_update' => 0, 'style' => 'list', |
| 'show_count' => 0, 'hide_empty' => 1, 'use_desc_for_title' => 1, |
| 'child_of' => 0, 'feed' => '', 'feed_image' => '', 'exclude' => '', |
| 'hierarchical' => true, 'title_li' => __('Categories')); |
| $r = array_merge($defaults, $r); |
| if ( !isset($r['pad_counts']) && $r['show_count'] && $r['hierarchical'] ) |
| $r['pad_counts'] = true; |
| if ( isset($r['show_date']) ) |
| $r['include_last_update_time'] = $r['show_date']; |
| extract($r); |
| |
| $categories = get_categories($r); |
| |
| $output = ''; |
| if ( $title_li && 'list' == $style ) |
| $output = '<li class="categories">' . $r['title_li'] . '<ul>'; |
| |
| if ( empty($categories) ) { |
| if ( 'list' == $style ) |
| $output .= '<li>' . __("No categories") . '</li>'; |
| else |
| $output .= __("No categories"); |
| } else { |
| global $wp_query; |
| |
| if( !empty($show_option_all) ) |
| if ('list' == $style ) |
| $output .= '<li><a href="' . get_bloginfo('url') . '">' . $show_option_all . '</a></li>'; |
| else |
| $output .= '<a href="' . get_bloginfo('url') . '">' . $show_option_all . '</a>'; |
| |
| if ( is_category() ) |
| $r['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, $r); |
| } |
| |
| if ( $title_li && 'list' == $style ) |
| $output .= '</ul></li>'; |
| |
| echo apply_filters('wp_list_categories', $output); |
| } |
| |
| // |
| // Helper functions |
| // |
| |
| function walk_category_tree() { |
| $walker = new Walker_Category; |
| $args = func_get_args(); |
| return call_user_func_array(array(&$walker, 'walk'), $args); |
| } |
| |
| function walk_category_dropdown_tree() { |
| $walker = new Walker_CategoryDropdown; |
| $args = func_get_args(); |
| return call_user_func_array(array(&$walker, 'walk'), $args); |
| } |
| |
| ?> |