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<title>[31669] trunk: Improved 'orderby' meta syntax in `WP_User_Query`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/31669">31669</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/31669","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>boonebgorges</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-03-07 18:37:05 +0000 (Sat, 07 Mar 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Improved 'orderby' meta syntax in `WP_User_Query`.

Recent commits have added the ability to order query results by specific
clauses of the 'meta_query' parameter (comments <a href="https://core.trac.wordpress.org/changeset/31467">[31467]</a>, posts <a href="https://core.trac.wordpress.org/changeset/31312">[31312]</a> and
<a href="https://core.trac.wordpress.org/changeset/31340">[31340]</a>). The current changeset ports the same functionality to `WP_User_Query`.

Also introduced is the ability to pass the value of `$meta_key` to 'orderby'.

The internals of `WP_User_Query::prepare_users()` had to be reordered
somewhat to support these changes, primarily to ensure that the `meta_query`
object generates its SQL clauses before the 'orderby' parameter is parsed.

See <a href="https://core.trac.wordpress.org/ticket/31265">#31265</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesuserphp">trunk/src/wp-includes/user.php</a></li>
<li><a href="#trunktestsphpunittestsuserqueryphp">trunk/tests/phpunit/tests/user/query.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesuserphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/user.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/user.php    2015-03-07 17:33:48 UTC (rev 31668)
+++ trunk/src/wp-includes/user.php      2015-03-07 18:37:05 UTC (rev 31669)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -531,13 +531,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         column to search in based on search string. Default empty.
</span><span class="cx" style="display: block; padding: 0 10px">         *     @type array        $search_columns  Array of column names to be searched. Accepts 'ID', 'login',
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         'nicename', 'email', 'url'. Default empty array.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-         *     @type string|array $orderby         Field to sort the retrieved users by. May be a single value,
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+  *     @type string|array $orderby         Field(s) to sort the retrieved users by. May be a single value,
</ins><span class="cx" style="display: block; padding: 0 10px">          *                                         an array of values, or a multi-dimensional array with fields as keys
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         and orders ('ASC' or 'DESC') as values. Accepted values are'ID',
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         'display_name' (or 'name'), 'user_login' (or 'login'),
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         'user_nicename' (or 'nicename'), 'user_email' (or 'email'),
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         'user_url' (or 'url'), 'user_registered' (or 'registered'),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-         *                                         'post_count', 'meta_value', or 'meta_value_num'. To use 'meta_value'
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+  *                                         'post_count', 'meta_value', 'meta_value_num', the value of
+        *                                         `$meta_key`, or an array key of `$meta_query`. To use 'meta_value'
</ins><span class="cx" style="display: block; padding: 0 10px">          *                                         or 'meta_value_num', `$meta_key` must be also be defined.
</span><span class="cx" style="display: block; padding: 0 10px">         *                                         Default 'user_login'.
</span><span class="cx" style="display: block; padding: 0 10px">         *     @type string       $order           Designates ascending or descending order of users. Order values
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -625,6 +626,52 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $include = false;
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                // Meta query.
+               $this->meta_query = new WP_Meta_Query();
+               $this->meta_query->parse_query_vars( $qv );
+
+               $blog_id = 0;
+               if ( isset( $qv['blog_id'] ) ) {
+                       $blog_id = absint( $qv['blog_id'] );
+               }
+
+               $role = '';
+               if ( isset( $qv['role'] ) ) {
+                       $role = trim( $qv['role'] );
+               }
+
+               if ( $blog_id && ( $role || is_multisite() ) ) {
+                       $cap_meta_query = array();
+                       $cap_meta_query['key'] = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities';
+
+                       if ( $role ) {
+                               $cap_meta_query['value'] = '"' . $role . '"';
+                               $cap_meta_query['compare'] = 'like';
+                       }
+
+                       if ( empty( $this->meta_query->queries ) ) {
+                               $this->meta_query->queries = array( $cap_meta_query );
+                       } elseif ( ! in_array( $cap_meta_query, $this->meta_query->queries, true ) ) {
+                               // Append the cap query to the original queries and reparse the query.
+                               $this->meta_query->queries = array(
+                                       'relation' => 'AND',
+                                       array( $this->meta_query->queries, $cap_meta_query ),
+                               );
+                       }
+
+                       $this->meta_query->parse_query_vars( $this->meta_query->queries );
+               }
+
+               if ( ! empty( $this->meta_query->queries ) ) {
+                       $clauses = $this->meta_query->get_sql( 'user', $wpdb->users, 'ID', $this );
+                       $this->query_from .= $clauses['join'];
+                       $this->query_where .= $clauses['where'];
+
+                       if ( 'OR' == $this->meta_query->relation ) {
+                               $this->query_fields = 'DISTINCT ' . $this->query_fields;
+                       }
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 // sorting
</span><span class="cx" style="display: block; padding: 0 10px">                $qv['order'] = isset( $qv['order'] ) ? strtoupper( $qv['order'] ) : '';
</span><span class="cx" style="display: block; padding: 0 10px">                $order = $this->parse_order( $qv['order'] );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -728,10 +775,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $this->query_where .= $this->get_search_sql( $search, $search_columns, $wild );
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $blog_id = 0;
-               if ( isset( $qv['blog_id'] ) )
-                       $blog_id = absint( $qv['blog_id'] );
-
</del><span class="cx" style="display: block; padding: 0 10px">                 if ( isset( $qv['who'] ) && 'authors' == $qv['who'] && $blog_id ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $qv['meta_key'] = $wpdb->get_blog_prefix( $blog_id ) . 'user_level';
</span><span class="cx" style="display: block; padding: 0 10px">                        $qv['meta_value'] = 0;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -739,44 +782,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $qv['blog_id'] = $blog_id = 0; // Prevent extra meta query
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $this->meta_query = new WP_Meta_Query();
-               $this->meta_query->parse_query_vars( $qv );
-
-               $role = '';
-               if ( isset( $qv['role'] ) )
-                       $role = trim( $qv['role'] );
-
-               if ( $blog_id && ( $role || is_multisite() ) ) {
-                       $cap_meta_query = array();
-                       $cap_meta_query['key'] = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities';
-
-                       if ( $role ) {
-                               $cap_meta_query['value'] = '"' . $role . '"';
-                               $cap_meta_query['compare'] = 'like';
-                       }
-
-                       if ( empty( $this->meta_query->queries ) ) {
-                               $this->meta_query->queries = array( $cap_meta_query );
-                       } elseif ( ! in_array( $cap_meta_query, $this->meta_query->queries, true ) ) {
-                               // Append the cap query to the original queries and reparse the query.
-                               $this->meta_query->queries = array(
-                                       'relation' => 'AND',
-                                       array( $this->meta_query->queries, $cap_meta_query ),
-                               );
-                       }
-
-                       $this->meta_query->parse_query_vars( $this->meta_query->queries );
-               }
-
-               if ( !empty( $this->meta_query->queries ) ) {
-                       $clauses = $this->meta_query->get_sql( 'user', $wpdb->users, 'ID', $this );
-                       $this->query_from .= $clauses['join'];
-                       $this->query_where .= $clauses['where'];
-
-                       if ( 'OR' == $this->meta_query->relation )
-                               $this->query_fields = 'DISTINCT ' . $this->query_fields;
-               }
-
</del><span class="cx" style="display: block; padding: 0 10px">                 if ( ! empty( $include ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        // Sanitized earlier.
</span><span class="cx" style="display: block; padding: 0 10px">                        $ids = implode( ',', $include );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -955,6 +960,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">        protected function parse_orderby( $orderby ) {
</span><span class="cx" style="display: block; padding: 0 10px">                global $wpdb;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                $meta_query_clauses = $this->meta_query->get_clauses();
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 $_orderby = '';
</span><span class="cx" style="display: block; padding: 0 10px">                if ( in_array( $orderby, array( 'login', 'nicename', 'email', 'url', 'registered' ) ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $_orderby = 'user_' . $orderby;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -975,7 +982,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $_orderby = 'post_count';
</span><span class="cx" style="display: block; padding: 0 10px">                } elseif ( 'ID' == $orderby || 'id' == $orderby ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $_orderby = 'ID';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                } elseif ( 'meta_value' == $orderby ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         } elseif ( 'meta_value' == $orderby || $this->get( 'meta_key' ) == $orderby ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                         $_orderby = "$wpdb->usermeta.meta_value";
</span><span class="cx" style="display: block; padding: 0 10px">                } elseif ( 'meta_value_num' == $orderby ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $_orderby = "$wpdb->usermeta.meta_value+0";
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -983,6 +990,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $include = wp_parse_id_list( $this->query_vars['include'] );
</span><span class="cx" style="display: block; padding: 0 10px">                        $include_sql = implode( ',', $include );
</span><span class="cx" style="display: block; padding: 0 10px">                        $_orderby = "FIELD( $wpdb->users.ID, $include_sql )";
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                } elseif ( isset( $meta_query_clauses[ $orderby ] ) ) {
+                       $meta_clause = $meta_query_clauses[ $orderby ];
+                       $_orderby = sprintf( "CAST(%s.meta_value AS %s)", esc_sql( $meta_clause['alias'] ), esc_sql( $meta_clause['cast'] ) );
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                return $_orderby;
</span></span></pre></div>
<a id="trunktestsphpunittestsuserqueryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/user/query.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/user/query.php  2015-03-07 17:33:48 UTC (rev 31668)
+++ trunk/tests/phpunit/tests/user/query.php    2015-03-07 18:37:05 UTC (rev 31669)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -180,6 +180,123 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * @ticket 31265
+        */
+       public function test_orderby_somekey_where_meta_key_is_somekey() {
+               $users = $this->factory->user->create_many( 3, array(
+                       'role' => 'author'
+               ) );
+
+               update_user_meta( $users[0], 'foo', 'zzz' );
+               update_user_meta( $users[1], 'foo', 'aaa' );
+               update_user_meta( $users[2], 'foo', 'jjj' );
+
+               $q = new WP_User_Query( array(
+                       'include' => $users,
+                       'meta_key' => 'foo',
+                       'orderby' => 'foo',
+                       'fields' => 'ids'
+               ) );
+
+               $expected = array( $users[1], $users[2], $users[0] );
+
+               $this->assertEquals( $expected, $q->get_results() );
+       }
+
+       /**
+        * @ticket 31265
+        */
+       public function test_orderby_clause_key() {
+               $users = $this->factory->user->create_many( 3 );
+               add_user_meta( $users[0], 'foo', 'aaa' );
+               add_user_meta( $users[1], 'foo', 'zzz' );
+               add_user_meta( $users[2], 'foo', 'jjj' );
+
+               $q = new WP_User_Query( array(
+                       'fields' => 'ids',
+                       'meta_query' => array(
+                               'foo_key' => array(
+                                       'key' => 'foo',
+                                       'compare' => 'EXISTS',
+                               ),
+                       ),
+                       'orderby' => 'foo_key',
+                       'order' => 'DESC',
+               ) );
+
+               $this->assertEquals( array( $users[1], $users[2], $users[0] ), $q->results );
+       }
+
+       /**
+        * @ticket 31265
+        */
+       public function test_orderby_clause_key_as_secondary_sort() {
+               $u1 = $this->factory->user->create( array(
+                       'user_registered' => '2015-01-28 03:00:00',
+               ) );
+               $u2 = $this->factory->user->create( array(
+                       'user_registered' => '2015-01-28 05:00:00',
+               ) );
+               $u3 = $this->factory->user->create( array(
+                       'user_registered' => '2015-01-28 03:00:00',
+               ) );
+
+               add_user_meta( $u1, 'foo', 'jjj' );
+               add_user_meta( $u2, 'foo', 'zzz' );
+               add_user_meta( $u3, 'foo', 'aaa' );
+
+               $q = new WP_User_Query( array(
+                       'fields' => 'ids',
+                       'meta_query' => array(
+                               'foo_key' => array(
+                                       'key' => 'foo',
+                                       'compare' => 'EXISTS',
+                               ),
+                       ),
+                       'orderby' => array(
+                               'comment_date' => 'asc',
+                               'foo_key' => 'asc',
+                       ),
+               ) );
+
+               $this->assertEquals( array( $u3, $u1, $u2 ), $q->results );
+       }
+
+       /**
+        * @ticket 31265
+        */
+       public function test_orderby_more_than_one_clause_key() {
+               $users = $this->factory->user->create_many( 3 );
+
+               add_user_meta( $users[0], 'foo', 'jjj' );
+               add_user_meta( $users[1], 'foo', 'zzz' );
+               add_user_meta( $users[2], 'foo', 'jjj' );
+               add_user_meta( $users[0], 'bar', 'aaa' );
+               add_user_meta( $users[1], 'bar', 'ccc' );
+               add_user_meta( $users[2], 'bar', 'bbb' );
+
+               $q = new WP_User_Query( array(
+                       'fields' => 'ids',
+                       'meta_query' => array(
+                               'foo_key' => array(
+                                       'key' => 'foo',
+                                       'compare' => 'EXISTS',
+                               ),
+                               'bar_key' => array(
+                                       'key' => 'bar',
+                                       'compare' => 'EXISTS',
+                               ),
+                       ),
+                       'orderby' => array(
+                               'foo_key' => 'asc',
+                               'bar_key' => 'desc',
+                       ),
+               ) );
+
+               $this->assertEquals( array( $users[2], $users[0], $users[1] ), $q->results );
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * @ticket 30064
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        public function test_orderby_include_with_empty_include() {
</span></span></pre>
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