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introduce _wp_meta_sql(). Preparation for adding blog_id to WP_User_Query. See #14572 

git-svn-id: http://svn.automattic.com/wordpress/trunk@15565 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
scribu 2010-09-05 13:31:33 +00:00
parent 15bc341696
commit 27d0a177f7
2 changed files with 71 additions and 16 deletions
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50
wp-includes/functions.php
View File

@ -4218,6 +4218,56 @@ function _wp_search_sql($string, $cols) {
return ' AND (' . implode(' OR ', $searches) . ')';
}
/*
* Used internally to generate an SQL string for searching across multiple meta key = value pairs
*
* @access private
* @since 3.1.0
*
* @param array $queries An array of queries
* @return string
*/
function _wp_meta_sql( $queries, $meta_id_column, $table ) {
global $wpdb;
$clauses = array();
foreach ( $queries as $query ) {
$meta_key = trim( @$query['meta_key'] );
$meta_value = trim( @$query['meta_value'] );
$meta_compare = @$query['meta_compare'];
if ( empty( $meta_compare ) || !in_array( $meta_compare, array( '=', '!=', '>', '>=', '<', '<=', 'like' ) ) )
$meta_compare = '=';
if ( empty( $meta_key ) )
continue;
$clause = $wpdb->prepare( "WHEN %s THEN meta_value ", $meta_key );
if ( empty( $meta_value ) ) {
$clauses[] = $clause . "IS NOT NULL";
} elseif ( 'like' == $meta_compare ) {
$clauses[] = $clause . $wpdb->prepare( "LIKE %s", '%' . like_escape( $meta_value ) . '%' );
} else {
$clauses[] = $clause . $wpdb->prepare( "$meta_compare %s", $meta_value );
}
}
if ( empty( $clauses ) )
return '';
return "
SELECT $meta_id_column
FROM $table
WHERE CASE meta_key
" . implode( "\n", $clauses ) . "
END
GROUP BY $meta_id_column
HAVING COUNT(*) = " . count( $clauses );
}
/*
* Used internally to tidy up the search terms
*

37
wp-includes/user.php
View File

@ -379,7 +379,7 @@ class WP_User_Query {
'orderby' => 'login', 'order' => 'ASC',
'meta_key' => '', 'meta_value' => '',
'include' => array(), 'exclude' => array(),
'fields' => 'all'
'fields' => 'all',
) );
$this->prepare_query();
@ -445,26 +445,31 @@ class WP_User_Query {
$role = trim( $qv['role'] );
if ( $role || is_multisite() ) {
$this->query_from .= " INNER JOIN $wpdb->usermeta ON $wpdb->users.ID = $wpdb->usermeta.user_id";
$this->query_where .= $wpdb->prepare( " AND $wpdb->usermeta.meta_key = %s", $wpdb->prefix . 'capabilities' );
}
$meta_queries = array();
$cap_meta_query = array();
$cap_meta_key = $wpdb->prefix . 'capabilities';
if ( $role || is_multisite() )
$cap_meta_query['meta_key'] = $cap_meta_key;
if ( $role ) {
$this->query_where .= $wpdb->prepare( " AND $wpdb->usermeta.meta_value LIKE %s", '%' . like_escape( $role ) . '%' );
$cap_meta_query['meta_value'] = $role;
$cap_meta_query['meta_compare'] = 'like';
}
$meta_key = trim( $qv['meta_key'] );
$meta_value = trim( $qv['meta_value'] );
if ( $meta_key ) {
if ( empty( $meta_value ) ) {
$subquery = $wpdb->prepare( "SELECT user_id FROM {$wpdb->usermeta} WHERE meta_key = %s", $meta_key );
}
else {
$subquery = $wpdb->prepare( "SELECT user_id FROM {$wpdb->usermeta} WHERE meta_key = %s AND meta_value = %s", $meta_key, $meta_value );
}
$meta_queries[] = $cap_meta_query;
$this->query_where .= " AND $wpdb->users.ID IN ($subquery)";
$meta_queries[] = array(
'meta_key' => @$qv['meta_key'],
'meta_value' => @$qv['meta_key'],
'meta_compare' => @$qv['meta_key'],
);
$meta_query_sql = _wp_meta_sql( $meta_queries, 'user_id', $wpdb->usermeta );
if ( !empty( $meta_query_sql ) ) {
$this->query_where .= " AND $wpdb->users.ID IN ($meta_query_sql)";
}
if ( !empty($qv['include']) ) {