7f3e74ffca
git-svn-id: https://develop.svn.wordpress.org/trunk@5522 602fd350-edb4-49c9-b593-d223f7449a82
320 lines
10 KiB
PHP
320 lines
10 KiB
PHP
<?php
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/**
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* Adds a new term to the database. Optionally marks it as an alias of an existing term.
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* @param int|string $term The term to add or update.
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* @param string $taxonomy The taxonomy to which to add the term
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* @param int|string $alias_of The id or slug of the new term's alias.
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*/
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function wp_insert_term( $term, $taxonomy, $args = array() ) {
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global $wpdb;
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$update = false;
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if ( is_int($term) ) {
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$update = true;
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$term_id = $term;
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} else {
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$name = $term;
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}
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$defaults = array( 'alias_of' => '', 'description' => '', 'parent' => 0, 'slug' => '');
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$args = wp_parse_args($args, $defaults);
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extract($args);
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$parent = (int) $parent;
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if ( empty($slug) )
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$slug = sanitize_title($name);
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else
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$slug = sanitize_title($slug);
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$term_group = 0;
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if ( $alias_of ) {
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$alias = $wpdb->fetch_row("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = '$alias_of'");
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if ( $alias->term_group ) {
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// The alias we want is already in a group, so let's use that one.
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$term_group = $alias->term_group;
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} else {
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// The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
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$term_group = $wpdb->get_var("SELECT MAX() term_group FROM $wpdb->terms GROUP BY term_group") + 1;
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$wpdb->query("UPDATE $wpdb->terms SET term_group = $term_group WHERE term_id = $alias->term_id");
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}
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}
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if ( $update ) {
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$wpdb->query("UPDATE $wpdb->terms SET name = '$name', slug = '$slug', term_group = '$term_group' WHERE term_id = '$term_id'");
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} else if ( ! $term_id = is_term($slug) ) {
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$wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$name', '$slug', '$term_group')");
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$term_id = (int) $wpdb->insert_id;
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}
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if ( empty($slug) ) {
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$slug = sanitize_title($slug, $term_id);
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$wpdb->query("UPDATE $wpdb->terms SET slug = '$slug' WHERE term_id = '$term_id'");
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}
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$tt_id = $wpdb->get_var("SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = '$taxonomy' AND t.term_id = $term_id");
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if ( !$update && !empty($tt_id) )
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return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
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if ( $update ) {
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$wpdb->query("UPDATE $wpdb->term_taxonomy SET term_id = '$term_id', taxonomy = '$taxonomy', description = '$description', parent = '$parent', count = 0 WHERE term_taxonomy_id = '$tt_id'");
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} else {
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$wpdb->query("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ('$term_id', '$taxonomy', '$description', '$parent', '0')");
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$tt_id = (int) $wpdb->insert_id;
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}
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return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id);
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}
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/**
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* Removes a term from the database.
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*/
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function wp_delete_term() {}
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function wp_update_term( $term, $taxonomy, $fields = array() ) {
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$term = (int) $term;
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// First, get all of the original fields
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$term = get_term ($term, $taxonomy, ARRAY_A);
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// Escape data pulled from DB.
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$term = add_magic_quotes($term);
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// Merge old and new fields with new fields overwriting old ones.
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$fields = array_merge($term, $fields);
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return wp_insert_term($term, $taxonomy, $fields);
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}
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/**
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* Returns the index of a defined term, or 0 (false) if the term doesn't exist.
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*/
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function is_term($term, $taxonomy = '') {
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global $wpdb;
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if ( is_int($term) ) {
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$where = "t.term_id = '$term'";
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} else {
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if ( ! $term = sanitize_title($term) )
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return 0;
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$where = "t.slug = '$term'";
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}
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$term_id = $wpdb->get_var("SELECT term_id FROM $wpdb->terms as t WHERE $where");
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if ( empty($taxonomy) || empty($term_id) )
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return $term_id;
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return $wpdb->get_row("SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $where AND tt.taxonomy = '$taxonomy'", ARRAY_A);
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}
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/**
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* Given an array of terms, returns those that are defined term slugs. Ignores integers.
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* @param array $terms The term slugs to check for a definition.
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*/
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function get_defined_terms($terms) {
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global $wpdb;
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foreach ( $terms as $term ) {
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if ( !is_int($term) )
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$searches[] = $term;
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}
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$terms = "'" . implode("', '", $searches) . "'";
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return $wpdb->get_col("SELECT slug FROM $wpdb->terms WHERE slug IN ($terms)");
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}
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/**
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* Relates an object (post, link etc) to a term and taxonomy type. Creates the term and taxonomy
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* relationship if it doesn't already exist. Creates a term if it doesn't exist (using the slug).
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* @param int $object_id The object to relate to.
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* @param array|int|string $term The slug or id of the term.
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* @param array|string $taxonomies The context(s) in which to relate the term to the object.
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*/
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function wp_set_object_terms($object_id, $terms, $taxonomies, $append = false) {
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global $wpdb;
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$object_id = (int) $object_id;
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if ( !is_array($taxonomies) )
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$taxonomies = array($taxonomies);
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if ( !is_array($terms) )
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$terms = array($terms);
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if ( ! $append ) {
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$in_taxonomies = "'" . implode("', '", $taxonomies) . "'";
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$old_terms = $wpdb->get_col("SELECT tr.term_taxonomy_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($in_taxonomies) AND tr.object_id = '$object_id'");
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}
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$tt_ids = array();
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foreach ( $taxonomies as $taxonomy ) {
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foreach ($terms as $term) {
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if ( !$id = is_term($term, $taxonomy) )
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$id = wp_insert_term($term, $taxonomy);
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$id = $id['term_taxonomy_id'];
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$tt_ids[] = $id;
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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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if ( ! $append ) {
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$delete_terms = array_diff($old_terms, $tt_ids);
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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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return $tt_ids;
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}
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/**
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* Returns the terms associated with the given object(s), in the supplied taxonomies.
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* @param int|array $object_id The id of the object(s)) to retrieve for.
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* @param string|array $taxonomies The taxonomies to retrieve terms from.
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* @return array The requested term data.
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*/
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function get_object_terms($object_id, $taxonomy) {
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global $wpdb;
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$taxonomies = ($single_taxonomy = !is_array($taxonomy)) ? array($taxonomy) : $taxonomy;
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$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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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 $taxonomy_data;
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} else {
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foreach ($taxonomy_data as $data) {
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if ($single_taxonomy) {
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// Many objects, one taxonomy type.
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$return[$data->object_id][] = $data;
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} elseif ($single_object) {
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// One object, many taxonomies.
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$return[$data->taxonomy][] = $data;
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} else {
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// Many objects, many taxonomies.
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$return[$data->object_id][$data->taxonomy][] = $data;
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}
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}
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return $return;
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}
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} else {
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return array();
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}
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}
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function &get_terms($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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