Allow an `array()` to be passed as the value for `orderby` to `WP_Query`. Allows for an independent `order` value for each key.
Example: `'orderby' => array( 'title' => 'DESC', 'menu_order' => 'ASC' )`. Adds docs and unit tests. Props wonderboymusic, johnbillion, DrewAPicture, dd32, andy. See #17065. Built from https://develop.svn.wordpress.org/trunk@29027 git-svn-id: http://core.svn.wordpress.org/trunk@28815 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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Scott Taylor
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@ -2199,6 +2199,97 @@ class WP_Query {
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return $search_orderby;
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}
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/**
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* If the passed orderby value is allowed, convert the alias to a
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* properly-prefixed orderby value.
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*
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* @since 4.0.0
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* @access protected
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*
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* @global wpdb $wpdb WordPress database access abstraction object.
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*
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* @param string $orderby Alias for the field to order by.
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* @return string|bool Table-prefixed value to used in the ORDER clause. False otherwise.
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*/
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protected function parse_orderby( $orderby ) {
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global $wpdb;
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// Used to filter values.
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$allowed_keys = array(
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'post_name', 'post_author', 'post_date', 'post_title', 'post_modified',
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'post_parent', 'post_type', 'name', 'author', 'date', 'title', 'modified',
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'parent', 'type', 'ID', 'menu_order', 'comment_count', 'rand',
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);
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$meta_key = $this->get( 'meta_key' );
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if ( ! empty( $meta_key ) ) {
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$allowed_keys[] = $meta_key;
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$allowed_keys[] = 'meta_value';
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$allowed_keys[] = 'meta_value_num';
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}
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if ( ! in_array( $orderby, $allowed_keys ) ) {
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return false;
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}
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switch ( $orderby ) {
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case 'post_name':
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case 'post_author':
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case 'post_date':
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case 'post_title':
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case 'post_modified':
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case 'post_parent':
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case 'post_type':
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case 'ID':
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case 'menu_order':
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case 'comment_count':
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$orderby = "$wpdb->posts.{$orderby}";
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break;
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case 'rand':
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$orderby = 'RAND()';
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break;
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case $meta_key:
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case 'meta_value':
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$type = $this->get( 'meta_type' );
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if ( ! empty( $type ) ) {
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$meta_type = $this->meta_query->get_cast_for_type( $type );
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$orderby = "CAST($wpdb->postmeta.meta_value AS {$meta_type})";
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} else {
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$orderby = "$wpdb->postmeta.meta_value";
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}
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break;
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case 'meta_value_num':
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$orderby = "$wpdb->postmeta.meta_value+0";
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break;
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default:
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$orderby = "$wpdb->posts.post_" . $orderby;
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break;
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}
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return $orderby;
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}
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/**
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* Parse an 'order' query variable and cast it to ASC or DESC as necessary.
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*
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* @since 4.0.0
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* @access protected
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*
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* @param string $order The 'order' query variable.
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* @return string The sanitized 'order' query variable.
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*/
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protected function parse_order( $order ) {
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if ( ! is_string( $order ) || empty( $order ) ) {
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return 'DESC';
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}
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if ( 'ASC' === strtoupper( $order ) ) {
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return 'ASC';
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} else {
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return 'DESC';
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}
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}
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/**
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* Sets the 404 property and saves whether query is feed.
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*
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@ -2702,12 +2793,23 @@ class WP_Query {
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$where .= $search . $whichauthor . $whichmimetype;
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if ( empty($q['order']) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC')) )
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if ( ! isset( $q['order'] ) ) {
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$q['order'] = 'DESC';
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} else {
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$q['order'] = $this->parse_order( $q['order'] );
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}
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// Order by
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if ( empty($q['orderby']) ) {
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// Order by.
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if ( empty( $q['orderby'] ) ) {
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/*
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* Boolean false or empty array blanks out ORDER BY,
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* while leaving the value unset or otherwise empty sets the default.
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*/
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if ( isset( $q['orderby'] ) && ( is_array( $q['orderby'] ) || false === $q['orderby'] ) ) {
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$orderby = '';
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} else {
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$orderby = "$wpdb->posts.post_date " . $q['order'];
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}
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} elseif ( 'none' == $q['orderby'] ) {
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$orderby = '';
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} elseif ( $q['orderby'] == 'post__in' && ! empty( $post__in ) ) {
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@ -2715,60 +2817,42 @@ class WP_Query {
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} elseif ( $q['orderby'] == 'post_parent__in' && ! empty( $post_parent__in ) ) {
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$orderby = "FIELD( {$wpdb->posts}.post_parent, $post_parent__in )";
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} else {
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// Used to filter values
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$allowed_keys = array( 'name', 'author', 'date', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand', 'comment_count', 'type' );
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if ( !empty($q['meta_key']) ) {
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$allowed_keys[] = $q['meta_key'];
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$allowed_keys[] = 'meta_value';
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$allowed_keys[] = 'meta_value_num';
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}
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$q['orderby'] = urldecode($q['orderby']);
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$q['orderby'] = addslashes_gpc($q['orderby']);
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$orderby_array = array();
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foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {
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// Only allow certain values for safety
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if ( ! in_array($orderby, $allowed_keys) )
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if ( is_array( $q['orderby'] ) ) {
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foreach ( $q['orderby'] as $_orderby => $order ) {
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$orderby = addslashes_gpc( urldecode( $_orderby ) );
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$parsed = $this->parse_orderby( $orderby );
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if ( ! $parsed ) {
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continue;
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}
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$orderby_array[] = $parsed . ' ' . $this->parse_order( $order );
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}
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$orderby = implode( ', ', $orderby_array );
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switch ( $orderby ) {
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case 'menu_order':
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$orderby = "$wpdb->posts.menu_order";
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break;
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case 'ID':
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$orderby = "$wpdb->posts.ID";
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break;
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case 'rand':
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$orderby = 'RAND()';
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break;
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case $q['meta_key']:
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case 'meta_value':
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if ( isset( $q['meta_type'] ) ) {
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$meta_type = $this->meta_query->get_cast_for_type( $q['meta_type'] );
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$orderby = "CAST($wpdb->postmeta.meta_value AS {$meta_type})";
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} else {
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$orderby = "$wpdb->postmeta.meta_value";
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}
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break;
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case 'meta_value_num':
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$orderby = "$wpdb->postmeta.meta_value+0";
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break;
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case 'comment_count':
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$orderby = "$wpdb->posts.comment_count";
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break;
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default:
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$orderby = "$wpdb->posts.post_" . $orderby;
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$q['orderby'] = urldecode( $q['orderby'] );
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$q['orderby'] = addslashes_gpc( $q['orderby'] );
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foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {
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$parsed = $this->parse_orderby( $orderby );
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// Only allow certain values for safety.
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if ( ! $parsed ) {
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continue;
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}
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$orderby_array[] = $orderby;
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$orderby_array[] = $parsed;
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}
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$orderby = implode( ' ' . $q['order'] . ', ', $orderby_array );
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if ( empty( $orderby ) )
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if ( empty( $orderby ) ) {
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$orderby = "$wpdb->posts.post_date ".$q['order'];
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else
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} else {
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$orderby .= " {$q['order']}";
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}
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}
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}
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// Order search results by relevance only when another "orderby" is not specified in the query.
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if ( ! empty( $q['s'] ) ) {
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