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Ajaxify list-type screens in the admin. See #14579
git-svn-id: https://develop.svn.wordpress.org/trunk@15491 602fd350-edb4-49c9-b593-d223f7449a82
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scribu
+217
-1
@@ -325,6 +325,222 @@ function delete_user_option( $user_id, $option_name, $global = false ) {
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return delete_user_meta( $user_id, $option_name );
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}
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/**
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* WordPress User Query class.
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*
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* @since 3.1.0
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*/
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class WP_User_Query {
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/**
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* {@internal Missing Description}}
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*
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* @since 3.1.0
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* @access private
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* @var array
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*/
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var $results;
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/**
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* The total number of users for the current query
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*
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* @since 3.1.0
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* @access private
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* @var int
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*/
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var $total_users = 0;
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var $query_from;
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var $query_where;
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var $query_orderby;
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var $query_limit;
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/**
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* Sets up the object properties.
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*
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* @since 3.1.0
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*
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* @param string|array $args The query variables
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* @return WP_User_Query
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*/
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function WP_User_Query( $query ) {
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$this->query_vars = wp_parse_args( $query, array(
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'search' => '', 'role' => '',
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'offset' => '', 'number' => '', 'count_total' => true,
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'orderby' => 'login', 'order' => 'ASC',
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'meta_key' => '', 'meta_value' => '',
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'include' => array(), 'exclude' => array(),
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'fields' => 'all'
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) );
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$this->prepare_query();
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$this->query();
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}
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/**
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* Prepare the query variables
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*
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* @since 3.1.0
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* @access private
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*/
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function prepare_query() {
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global $wpdb;
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$qv = &$this->query_vars;
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$this->query_from = " FROM $wpdb->users";
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$this->query_where = " WHERE 1=1";
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// sorting
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if ( in_array( $qv['orderby'], array('email', 'url', 'registered') ) ) {
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$orderby = 'user_' . $qv['orderby'];
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}
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elseif ( 'name' == $qv['orderby'] ) {
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$orderby = 'display_name';
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}
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elseif ( 'post_count' == $qv['orderby'] ) {
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$where = get_posts_by_author_sql('post');
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$this->query_from .= " LEFT OUTER JOIN (
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SELECT post_author, COUNT(*) as post_count
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FROM wp_posts
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$where
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GROUP BY post_author
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) p ON (wp_users.ID = p.post_author)
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";
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$orderby = 'post_count';
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}
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else {
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$orderby = 'user_login';
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}
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$qv['order'] = strtoupper( $qv['order'] );
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if ( 'ASC' == $qv['order'] )
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$order = 'ASC';
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else
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$order = 'DESC';
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$this->query_orderby = " ORDER BY $orderby $order";
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// limit
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if ( $qv['number'] ) {
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if ( $qv['offset'] )
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$this->query_limit = $wpdb->prepare(" LIMIT %d, %d", $qv['offset'], $qv['offset'] + $qv['number']);
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else
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$this->query_limit = $wpdb->prepare(" LIMIT %d", $qv['number']);
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}
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$search = trim( $qv['search'] );
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if ( $search ) {
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$this->query_where .= _wp_search_sql( $search, array('user_login', 'user_nicename', 'user_email', 'user_url', 'display_name') );
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}
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$role = trim( $qv['role'] );
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if ( $role ) {
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$this->query_from .= " INNER JOIN $wpdb->usermeta ON $wpdb->users.ID = $wpdb->usermeta.user_id";
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$this->query_where .= $wpdb->prepare(" AND $wpdb->usermeta.meta_key = '{$wpdb->prefix}capabilities' AND $wpdb->usermeta.meta_value LIKE %s", '%' . $role . '%');
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} elseif ( is_multisite() ) {
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$level_key = $wpdb->prefix . 'capabilities'; // wpmu site admins don't have user_levels
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$this->query_from .= ", $wpdb->usermeta";
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$this->query_where .= " AND $wpdb->users.ID = $wpdb->usermeta.user_id AND meta_key = '{$level_key}'";
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}
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$meta_key = trim( $qv['meta_key'] );
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$meta_value = trim( $qv['meta_value'] );
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if ( $meta_key ) {
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if ( empty( $meta_value ) ) {
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$subquery = $wpdb->prepare( "SELECT user_id FROM {$wpdb->usermeta} WHERE meta_key = %s", $meta_key );
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}
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else {
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$subquery = $wpdb->prepare( "SELECT user_id FROM {$wpdb->usermeta} WHERE meta_key = %s AND meta_value = %s", $meta_key, $meta_value );
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}
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$this->query_where .= " AND $wpdb->users.ID IN ($subquery)";
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}
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if ( !empty($qv['include']) ) {
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$ids = implode( ',', wp_parse_id_list( $qv['include'] ) );
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$this->query_where .= " AND $wpdb->users.ID IN ($ids)";
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}
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elseif ( !empty($qv['exclude']) ) {
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$ids = implode( ',', wp_parse_id_list( $qv['exclude'] ) );
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$this->query_where .= " AND $wpdb->users.ID NOT IN ($ids)";
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}
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do_action_ref_array( 'pre_user_query', array( &$this ) );
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}
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/**
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* Execute the query, with the current variables
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*
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* @since 3.1.0
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* @access private
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*/
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function query() {
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global $wpdb;
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$this->results = $wpdb->get_col("SELECT DISTINCT($wpdb->users.ID)" . $this->query_from . $this->query_where . $this->query_orderby . $this->query_limit);
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if ( !$this->results )
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return;
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if ( $this->query_vars['count_total'] )
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$this->total_users = $wpdb->get_var("SELECT COUNT(DISTINCT($wpdb->users.ID))" . $this->query_from . $this->query_where);
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if ( 'all' == $this->query_vars['fields'] ) {
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cache_users($this->results);
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$r = array();
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foreach ( $this->results as $userid )
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$r[ $userid ] = new WP_User( $userid );
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$this->results = $r;
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}
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}
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/**
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* Return the list of users
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*
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* @since 3.1.0
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* @access public
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*
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* @return array
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*/
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function get_results() {
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return $this->results;
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}
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/**
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* Return the total number of users for the current query
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*
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* @since 3.1.0
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* @access public
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*
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* @return array
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*/
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function get_total() {
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return $this->total_users;
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}
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}
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/**
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* Retrieve list of users matching criteria.
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*
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* @since 3.1.0
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* @uses $wpdb
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* @uses WP_User_Query See for default arguments and information.
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*
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* @param array $args
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* @return array List of users.
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*/
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function get_users( $args ) {
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$args = wp_parse_args( $args );
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$args['count_total'] = false;
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$user_search = new WP_User_Query($args);
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return (array) $user_search->get_results();
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}
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/**
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* Get users for the blog.
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*
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@@ -429,7 +645,7 @@ function update_user_meta($user_id, $meta_key, $meta_value, $prev_value = '') {
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* Count number of users who have each of the user roles.
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*
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* Assumes there are neither duplicated nor orphaned capabilities meta_values.
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* Assumes role names are unique phrases. Same assumption made by WP_User_Search::prepare_query()
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* Assumes role names are unique phrases. Same assumption made by WP_User_Query::prepare_query()
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* Using $strategy = 'time' this is CPU-intensive and should handle around 10^7 users.
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* Using $strategy = 'memory' this is memory-intensive and should handle around 10^5 users, but see WP Bug #12257.
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*
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