Reorg category functions. #2525

git-svn-id: http://svn.automattic.com/wordpress/trunk@3843 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2006-06-04 21:36:52 +00:00
parent 98a5598483
commit df5c967953
4 changed files with 282 additions and 274 deletions

View File

@ -1,15 +1,60 @@
<?php <?php
function walk_category_tree() { function get_category_children($id, $before = '/', $after = '') {
$walker = new Walker_Category; if ( 0 == $id )
$args = func_get_args(); return '';
return call_user_func_array(array(&$walker, 'walk'), $args);
$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 $chain;
} }
function walk_category_dropdown_tree() { function get_category_link($category_id) {
$walker = new Walker_CategoryDropdown; global $wp_rewrite;
$args = func_get_args(); $catlink = $wp_rewrite->get_category_permastruct();
return call_user_func_array(array(&$walker, 'walk'), $args);
if ( empty($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) { function get_the_category($id = false) {
@ -31,24 +76,10 @@ global $post, $category_cache;
return $categories; return $categories;
} }
function get_category_link($category_id) { function get_the_category_by_ID($cat_ID) {
global $wp_rewrite; $cat_ID = (int) $cat_ID;
$catlink = $wp_rewrite->get_category_permastruct(); $category = &get_category($cat_ID);
return $category->cat_name;
if ( empty($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 = '', $parents='') { function get_the_category_list($separator = '', $parents='') {
@ -106,53 +137,19 @@ function get_the_category_list($separator = '', $parents='') {
return apply_filters('the_category', $thelist, $separator, $parents); 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 = '', $parents='') { function the_category($separator = '', $parents='') {
echo get_the_category_list($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) { function category_description($category = 0) {
global $cat; global $cat;
if ( !$category ) if ( !$category )
@ -252,115 +249,20 @@ function wp_list_categories($args = '') {
echo apply_filters('list_cats', $output); echo apply_filters('list_cats', $output);
} }
function in_category($category) { // Check if the current post is in the given category //
global $category_cache, $post; // Helper functions
//
if ( isset( $category_cache[$post->ID][$category] ) ) function walk_category_tree() {
return true; $walker = new Walker_Category;
else $args = func_get_args();
return false; return call_user_func_array(array(&$walker, 'walk'), $args);
} }
function &_get_cat_children($category_id, $categories) { function walk_category_dropdown_tree() {
if ( empty($categories) ) $walker = new Walker_CategoryDropdown;
return array(); $args = func_get_args();
return call_user_func_array(array(&$walker, 'walk'), $args);
$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, $exclude => '', $include => '');
$r = array_merge($defaults, $r);
$r['orderby'] = "cat_" . $r['orderby']; // restricts order by to cat_ID and cat_name fields
extract($r);
$where = 'cat_ID > 0';
$inclusions = '';
if ( !empty($include) ) {
$child_of = 0; //ignore child_of and exclude params if using include
$exclude = '';
$incategories = preg_split('/[\s,]+/',$include);
if ( count($incategories) ) {
foreach ( $incategories as $incat ) {
if (empty($inclusions))
$inclusions = ' AND ( cat_ID = ' . intval($incat) . ' ';
else
$inclusions .= ' OR cat_ID = ' . intval($incat) . ' ';
}
}
}
if (!empty($inclusions))
$inclusions .= ')';
$where .= $inclusions;
$exclusions = '';
if ( !empty($exclude) ) {
$excategories = preg_split('/[\s,]+/',$exclude);
if ( count($excategories) ) {
foreach ( $excategories as $excat ) {
if (empty($exclusions))
$exclusions = ' AND ( cat_ID <> ' . intval($excat) . ' ';
else
$exclusions .= ' AND cat_ID <> ' . intval($excat) . ' ';
// TODO: Exclude children of excluded cats? Note: children are getting excluded
}
}
}
if (!empty($exclusions))
$exclusions .= ')';
$exclusions = apply_filters('list_cats_exclusions', $exclusions );
$where .= $exclusions;
$having = '';
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 apply_filters('get_categories', $categories);
} }
?> ?>

205
wp-includes/category.php Normal file
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@ -0,0 +1,205 @@
<?php
function get_all_category_ids() {
global $wpdb;
if ( ! $cat_ids = wp_cache_get('all_category_ids', 'category') ) {
$cat_ids = $wpdb->get_col("SELECT cat_ID FROM $wpdb->categories");
wp_cache_add('all_category_ids', $cat_ids, 'category');
}
return $cat_ids;
}
function &get_categories($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, $exclude => '', $include => '');
$r = array_merge($defaults, $r);
$r['orderby'] = "cat_" . $r['orderby']; // restricts order by to cat_ID and cat_name fields
extract($r);
$where = 'cat_ID > 0';
$inclusions = '';
if ( !empty($include) ) {
$child_of = 0; //ignore child_of and exclude params if using include
$exclude = '';
$incategories = preg_split('/[\s,]+/',$include);
if ( count($incategories) ) {
foreach ( $incategories as $incat ) {
if (empty($inclusions))
$inclusions = ' AND ( cat_ID = ' . intval($incat) . ' ';
else
$inclusions .= ' OR cat_ID = ' . intval($incat) . ' ';
}
}
}
if (!empty($inclusions))
$inclusions .= ')';
$where .= $inclusions;
$exclusions = '';
if ( !empty($exclude) ) {
$excategories = preg_split('/[\s,]+/',$exclude);
if ( count($excategories) ) {
foreach ( $excategories as $excat ) {
if (empty($exclusions))
$exclusions = ' AND ( cat_ID <> ' . intval($excat) . ' ';
else
$exclusions .= ' AND cat_ID <> ' . intval($excat) . ' ';
// TODO: Exclude children of excluded cats? Note: children are getting excluded
}
}
}
if (!empty($exclusions))
$exclusions .= ')';
$exclusions = apply_filters('list_cats_exclusions', $exclusions );
$where .= $exclusions;
$having = '';
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 apply_filters('get_categories', $categories);
}
// Retrieves category data given a category ID or category object.
// Handles category caching.
function &get_category(&$category, $output = OBJECT) {
global $wpdb;
if ( empty($category) )
return null;
if ( is_object($category) ) {
wp_cache_add($category->cat_ID, $category, 'category');
$_category = $category;
} else {
if ( ! $_category = wp_cache_get($category, 'category') ) {
$_category = $wpdb->get_row("SELECT * FROM $wpdb->categories WHERE cat_ID = '$category' LIMIT 1");
wp_cache_add($category, $_category, 'category');
}
}
if ( $output == OBJECT ) {
return $_category;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($_category);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($_category));
} else {
return $_category;
}
}
function get_category_by_path($category_path, $full_match = true, $output = OBJECT) {
global $wpdb;
$category_path = rawurlencode(urldecode($category_path));
$category_path = str_replace('%2F', '/', $category_path);
$category_path = str_replace('%20', ' ', $category_path);
$category_paths = '/' . trim($category_path, '/');
$leaf_path = sanitize_title(basename($category_paths));
$category_paths = explode('/', $category_paths);
foreach($category_paths as $pathdir)
$full_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
$categories = $wpdb->get_results("SELECT cat_ID, category_nicename, category_parent FROM $wpdb->categories WHERE category_nicename = '$leaf_path'");
if ( empty($categories) )
return NULL;
foreach ($categories as $category) {
$path = '/' . $leaf_path;
$curcategory = $category;
while ($curcategory->category_parent != 0) {
$curcategory = $wpdb->get_row("SELECT cat_ID, category_nicename, category_parent FROM $wpdb->categories WHERE cat_ID = '$curcategory->category_parent'");
$path = '/' . $curcategory->category_nicename . $path;
}
if ( $path == $full_path )
return get_category($category->cat_ID, $output);
}
// If full matching is not required, return the first cat that matches the leaf.
if ( ! $full_match )
return get_category($categories[0]->cat_ID, $output);
return NULL;
}
// Get the ID of a category from its name
function get_cat_ID($cat_name='General') {
global $wpdb;
$cid = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$cat_name'");
return $cid?$cid:1; // default to cat 1
}
// Deprecate
function get_catname($cat_ID) {
return get_cat_name($cat_ID);
}
// Get the name of a category from its ID
function get_cat_name($cat_id) {
$cat_id = (int) $cat_id;
$category = &get_category($cat_id);
return $category->cat_name;
}
//
// Private
//
function &_get_cat_children($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;
}
?>

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@ -607,25 +607,6 @@ function post_permalink($post_id = 0, $mode = '') { // $mode legacy
return get_permalink($post_id); return get_permalink($post_id);
} }
// Get the name of a category from its ID
function get_cat_name($cat_id) {
global $wpdb;
$cat_id -= 0; // force numeric
$name = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE cat_ID=$cat_id");
return $name;
}
// Get the ID of a category from its name
function get_cat_ID($cat_name='General') {
global $wpdb;
$cid = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$cat_name'");
return $cid?$cid:1; // default to cat 1
}
// Get author's preferred display name // Get author's preferred display name
function get_author_name( $auth_id ) { function get_author_name( $auth_id ) {
$authordata = get_userdata( $auth_id ); $authordata = get_userdata( $auth_id );

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@ -626,86 +626,6 @@ function &get_page(&$page, $output = OBJECT) {
} }
} }
function get_category_by_path($category_path, $full_match = true, $output = OBJECT) {
global $wpdb;
$category_path = rawurlencode(urldecode($category_path));
$category_path = str_replace('%2F', '/', $category_path);
$category_path = str_replace('%20', ' ', $category_path);
$category_paths = '/' . trim($category_path, '/');
$leaf_path = sanitize_title(basename($category_paths));
$category_paths = explode('/', $category_paths);
foreach($category_paths as $pathdir)
$full_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
$categories = $wpdb->get_results("SELECT cat_ID, category_nicename, category_parent FROM $wpdb->categories WHERE category_nicename = '$leaf_path'");
if ( empty($categories) )
return NULL;
foreach ($categories as $category) {
$path = '/' . $leaf_path;
$curcategory = $category;
while ($curcategory->category_parent != 0) {
$curcategory = $wpdb->get_row("SELECT cat_ID, category_nicename, category_parent FROM $wpdb->categories WHERE cat_ID = '$curcategory->category_parent'");
$path = '/' . $curcategory->category_nicename . $path;
}
if ( $path == $full_path )
return get_category($category->cat_ID, $output);
}
// If full matching is not required, return the first cat that matches the leaf.
if ( ! $full_match )
return get_category($categories[0]->cat_ID, $output);
return NULL;
}
// Retrieves category data given a category ID or category object.
// Handles category caching.
function &get_category(&$category, $output = OBJECT) {
global $wpdb;
if ( empty($category) )
return null;
if ( is_object($category) ) {
wp_cache_add($category->cat_ID, $category, 'category');
$_category = $category;
} else {
if ( ! $_category = wp_cache_get($category, 'category') ) {
$_category = $wpdb->get_row("SELECT * FROM $wpdb->categories WHERE cat_ID = '$category' LIMIT 1");
wp_cache_add($category, $_category, 'category');
}
}
if ( $output == OBJECT ) {
return $_category;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($_category);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($_category));
} else {
return $_category;
}
}
function get_catname($cat_ID) {
$category = &get_category($cat_ID);
return $category->cat_name;
}
function get_all_category_ids() {
global $wpdb;
if ( ! $cat_ids = wp_cache_get('all_category_ids', 'category') ) {
$cat_ids = $wpdb->get_col("SELECT cat_ID FROM $wpdb->categories");
wp_cache_add('all_category_ids', $cat_ids, 'category');
}
return $cat_ids;
}
function get_all_page_ids() { function get_all_page_ids() {
global $wpdb; global $wpdb;