Add get_terms() and get_term(). Move more of tagging to taxonomy. see #4189
git-svn-id: http://svn.automattic.com/wordpress/trunk@5521 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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ryan
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e623c78708
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@ -311,8 +311,8 @@ function wp_generate_tag_cloud( $tags, $args = '' ) {
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return;
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$counts = $tag_links = array();
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foreach ( (array) $tags as $tag ) {
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$counts[$tag->cat_name] = $tag->tag_count;
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$tag_links[$tag->cat_name] = get_tag_link( $tag->cat_ID );
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$counts[$tag->name] = $tag->count;
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$tag_links[$tag->name] = get_tag_link( $tag->term_id );
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}
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$min_count = min($counts);
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@ -384,20 +384,19 @@ function walk_category_dropdown_tree() {
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function get_tag_link( $tag_id ) {
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global $wp_rewrite;
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$catlink = $wp_rewrite->get_tag_permastruct();
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$taglink = $wp_rewrite->get_tag_permastruct();
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$category = &get_category($tag_id);
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$category_nicename = $category->category_nicename;
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$tag = &get_term($tag_id, 'post_tag');
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$slug = $tag->slug;
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if ( empty($catlink) ) {
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$file = get_option('home') . '/';
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$catlink = $file . '?tag=' . $category_nicename;
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$taglink = $file . '?tag=' . $slug;
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} else {
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$catlink = str_replace('%tag%', $category_nicename, $catlink);
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$catlink = get_option('home') . user_trailingslashit($catlink, 'category');
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$taglink = str_replace('%tag%', $slug, $taglink);
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$taglink = get_option('home') . user_trailingslashit($taglink, 'category');
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}
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return apply_filters('tag_link', $catlink, $tag_id);
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return apply_filters('tag_link', $taglink, $tag_id);
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}
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function get_the_tags( $id = 0 ) {
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@ -426,7 +425,7 @@ function the_tags( $before = 'Tags: ', $sep = ', ', $after = '' ) {
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$tag_list = $before;
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foreach ( $tags as $tag )
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$tag_links[] = '<a href="' . get_tag_link($tag->cat_ID) . '">' . $tag->cat_name . '</a>';
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$tag_links[] = '<a href="' . get_tag_link($tag->term_id) . '">' . $tag->slug . '</a>';
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$tag_links = join( $sep, $tag_links );
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$tag_links = apply_filters( 'the_tags', $tag_links );
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@ -353,71 +353,13 @@ function _get_category_hierarchy() {
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function &get_tags($args = '') {
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global $wpdb, $category_links;
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$defaults = array('orderby' => 'name', 'order' => 'ASC',
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'hide_empty' => true, 'exclude' => '', 'include' => '',
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'number' => '');
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$args = wp_parse_args( $args, $defaults );
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if ( 'count' == $args['orderby'] )
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$args['orderby'] = 'tag_count';
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else
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$args['orderby'] = "cat_" . $args['orderby']; // restricts order by to cat_ID and cat_name fields
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$args['number'] = (int) $args['number'];
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extract($args);
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$key = md5( serialize( $args ) );
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if ( $cache = wp_cache_get( 'get_tags', 'category' ) )
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if ( isset( $cache[ $key ] ) )
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return apply_filters('get_tags', $cache[$key], $args);
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$where = 'cat_ID > 0';
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$inclusions = '';
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if ( !empty($include) ) {
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$child_of = 0; //ignore child_of and exclude params if using include
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$exclude = '';
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$incategories = preg_split('/[\s,]+/',$include);
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if ( count($incategories) ) {
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foreach ( $incategories as $incat ) {
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if (empty($inclusions))
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$inclusions = ' AND ( cat_ID = ' . intval($incat) . ' ';
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else
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$inclusions .= ' OR cat_ID = ' . intval($incat) . ' ';
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}
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}
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}
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if (!empty($inclusions))
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$inclusions .= ')';
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$where .= $inclusions;
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$exclusions = '';
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if ( !empty($exclude) ) {
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$excategories = preg_split('/[\s,]+/',$exclude);
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if ( count($excategories) ) {
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foreach ( $excategories as $excat ) {
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if (empty($exclusions))
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$exclusions = ' AND ( cat_ID <> ' . intval($excat) . ' ';
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else
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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 (!empty($exclusions))
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$exclusions .= ')';
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$exclusions = apply_filters('list_tags_exclusions', $exclusions, $args );
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$where .= $exclusions;
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if ( $hide_empty )
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$where .= ' AND tag_count > 0';
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$where .= ' AND ( type & ' . TAXONOMY_TAG . ' != 0 ) ';
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if ( !empty($number) )
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$number = 'LIMIT ' . $number;
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else
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$number = '';
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$tags = $wpdb->get_results("SELECT * FROM $wpdb->categories WHERE $where ORDER BY $orderby $order $number");
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$tags = get_terms('post_tag');
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if ( empty($tags) )
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return array();
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@ -160,6 +160,7 @@ function wp_title($sep = '»', $display = true) {
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global $wpdb, $wp_locale, $wp_query;
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$cat = get_query_var('cat');
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$tag = get_query_var('tag_id');
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$p = get_query_var('p');
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$name = get_query_var('name');
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$category_name = get_query_var('category_name');
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@ -188,6 +189,12 @@ function wp_title($sep = '»', $display = true) {
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$title = apply_filters('single_cat_title', $title);
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}
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if ( !empty($tag) ) {
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$tag = get_term($tag, 'post_tag');
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if ( ! empty($tag->name) )
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$title = apply_filters('single_tag_title', $tag->slug);
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}
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// If there's an author
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if ( !empty($author) ) {
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$title = get_userdata($author);
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@ -94,8 +94,8 @@ function is_tag( $slug = '' ) {
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if ( empty( $slug ) )
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return true;
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$cat_obj = $wp_query->get_queried_object();
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if ( $category == $cat_obj->category_nicename )
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$tag_obj = $wp_query->get_queried_object();
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if ( $slug == $tag_obj->slug )
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return true;
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return false;
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}
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@ -875,17 +875,17 @@ class WP_Query {
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}
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if ( '' != $q['tag'] ) {
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$reqcat= get_category_by_slug( $q['tag'] );
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if ( !empty($reqcat) )
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$reqcat = $reqcat->cat_ID;
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$reqtag = is_term( $q['tag'], 'post_tag' );
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if ( !empty($reqtag) )
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$reqtag = $reqtag['term_id'];
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else
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$reqcat = 0;
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$q['cat'] = $reqcat;
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$reqtag = 0;
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$q['tag_id'] = $reqtag;
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// TODO: use term taxonomy
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$tables = ", $wpdb->post2cat, $wpdb->categories";
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$join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) LEFT JOIN $wpdb->categories ON ($wpdb->post2cat.category_id = $wpdb->categories.cat_ID) ";
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$whichcat = " AND category_id IN ({$q['cat']}) AND rel_type = 'tag' ";
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$join = " LEFT JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) LEFT JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
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$whichcat = " AND $wpdb->term_taxonomy.term_id IN ({$q['tag_id']}) AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
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$groupby = "{$wpdb->posts}.ID";
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}
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@ -125,6 +125,7 @@ function wp_set_object_terms($object_id, $terms, $taxonomies, $append = false) {
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if ( $wpdb->get_var("SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = '$object_id' AND term_taxonomy_id = '$id'") )
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continue;
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$wpdb->query("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES ('$object_id', '$id')");
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET count = count + 1 WHERE term_taxonomy_id = $id");
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}
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}
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@ -133,6 +134,7 @@ function wp_set_object_terms($object_id, $terms, $taxonomies, $append = false) {
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if ( $delete_terms ) {
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$delete_terms = "'" . implode("', '", $delete_terms) . "'";
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$wpdb->query("DELETE FROM $wpdb->term_relationships WHERE term_taxonomy_id IN ($delete_terms)");
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET count = count - 1 WHERE term_taxonomy_id IN ($delete_terms)");
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}
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}
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@ -151,9 +153,9 @@ function get_object_terms($object_id, $taxonomy) {
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$object_ids = ($single_object = !is_array($object_id)) ? array($object_id) : $object_id;
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$taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$object_ids = implode(', ', $object_ids);
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$object_ids = implode(', ', $object_ids);
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if ( $taxonomy_data = $wpdb->get_results("SELECT t.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tr.object_id IN ($object_ids)") ) {
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if ( $taxonomy_data = $wpdb->get_results("SELECT t.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tr.object_id IN ($object_ids) ORDER BY t.name") ) {
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if ($single_taxonomy && $single_object) {
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// Just one kind of taxonomy for one object.
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return $taxonomy_data;
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@ -174,7 +176,110 @@ function get_object_terms($object_id, $taxonomy) {
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}
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} else {
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return array();
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}
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}
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}
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}
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function &get_terms($taxonomies, $args = '') {
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global $wpdb;
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if ( !is_array($taxonomies) )
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$taxonomies = array($taxonomies);
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$in_taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$defaults = array('orderby' => 'name', 'order' => 'ASC',
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'hide_empty' => true, 'exclude' => '', 'include' => '',
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'number' => '');
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$args = wp_parse_args( $args, $defaults );
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$args['number'] = (int) $args['number'];
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extract($args);
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if ( 'count' == $orderby )
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$orderby = 'tt.count';
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else if ( 'name' == $orderby )
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$orderby = 't.name';
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$where = '';
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$inclusions = '';
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if ( !empty($include) ) {
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$exclude = '';
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$interms = preg_split('/[\s,]+/',$include);
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if ( count($interms) ) {
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foreach ( $interms as $interm ) {
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if (empty($inclusions))
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$inclusions = ' AND ( t.term_id = ' . intval($interm) . ' ';
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else
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$inclusions .= ' OR t.term_id = ' . intval($interm) . ' ';
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}
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}
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}
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if ( !empty($inclusions) )
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$inclusions .= ')';
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$where .= $inclusions;
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$exclusions = '';
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if ( !empty($exclude) ) {
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$exterms = preg_split('/[\s,]+/',$exclude);
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if ( count($exterms) ) {
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foreach ( $exterms as $exterm ) {
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if (empty($exclusions))
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$exclusions = ' AND ( t.term_id <> ' . intval($exterm) . ' ';
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else
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$exclusions .= ' AND t.term_id <> ' . intval($exterm) . ' ';
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}
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}
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}
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if ( !empty($exclusions) )
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$exclusions .= ')';
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$exclusions = apply_filters('list_terms_exclusions', $exclusions, $args );
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$where .= $exclusions;
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if ( $hide_empty )
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$where .= ' AND tt.count > 0';
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if ( !empty($number) )
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$number = 'LIMIT ' . $number;
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else
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$number = '';
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$terms = $wpdb->get_results("SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ($in_taxonomies) $where ORDER BY $orderby $order $number");
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if ( empty($terms) )
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return array();
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$terms = apply_filters('get_terms', $terms, $taxonomies, $args);
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return $terms;
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}
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function &get_term(&$term, $taxonomy, $output = OBJECT) {
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global $wpdb;
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if ( empty($term) )
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return null;
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if ( is_object($term) ) {
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wp_cache_add($term->term_id, $term, "term:$taxonomy");
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$_term = $term;
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} else {
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$term = (int) $term;
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if ( ! $_term = wp_cache_get($term, "term:$taxonomy") ) {
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$_term = $wpdb->get_row("SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = '$taxonomy' AND t.term_id = '$term' LIMIT 1");
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wp_cache_add($term, $_term, "term:$taxonomy");
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}
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}
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$_term = apply_filters('get_term', $_term, $taxonomy);
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if ( $output == OBJECT ) {
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return $_term;
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($_term);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($_term));
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} else {
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return $_term;
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}
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}
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?>
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