diff options
Diffstat (limited to 'wp-includes/category-template.php')
| -rw-r--r-- | wp-includes/category-template.php | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/wp-includes/category-template.php b/wp-includes/category-template.php new file mode 100644 index 0000000..0ca0e62 --- /dev/null +++ b/wp-includes/category-template.php @@ -0,0 +1,268 @@ +<?php + +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 $chain; +} + +function get_category_link($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, $category_id); +} + +function get_category_parents($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 $chain; +} + +function get_the_category($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 $categories; +} + +function get_the_category_by_ID($cat_ID) { + $cat_ID = (int) $cat_ID; + $category = &get_category($cat_ID); + return $category->cat_name; +} + +function get_the_category_list($separator = '', $parents='') { + $categories = get_the_category(); + if (empty($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, $parents); +} + +function in_category($category) { // Check if the current post is in the given category + global $category_cache, $post; + + if ( isset( $category_cache[$post->ID][$category] ) ) + return true; + else + return false; +} + +function the_category($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'); + $r = array_merge($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. + + $output .= walk_category_dropdown_tree($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); + $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) + $output .= '<li>' . __("No categories") . '</li>'; + else + $output .= __("No categories"); + } else { + global $wp_query; + $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('list_cats', $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); +} + +?> |