Ticket #4170: 4170.2.diff

Users/denis/Sites/sem-pro/wp-includes/user.php

@@ -597 +597 @@
         wp_cache_add($user->ID, $user, 'users');
         wp_cache_add($user->user_login, $user->ID, 'userlogins');
         wp_cache_add($user->user_email, $user->ID, 'useremail');
+        wp_cache_add($user->user_nicename, $user->ID, 'usernicename');
 }
 
 ?>

Users/denis/Sites/sem-pro/wp-includes/query.php

@@ -2002 +2002 @@
                                 }
                         }
                         $q['author_name'] = sanitize_title($q['author_name']);
-                        $q['author'] = $wpdb->get_var("SELECT ID FROM $wpdb->users WHERE user_nicename='".$q['author_name']."'");
+                        $q['author'] = get_user_by_nicename($q['author_name']);
+                        $q['author'] = $q['author']->ID;
                         $whichauthor .= " AND ($wpdb->posts.post_author = ".absint($q['author']).')';
                 }
 

Users/denis/Sites/sem-pro/wp-includes/general-template.php

@@ -422 +422 @@
                 $title = $title->display_name;
         }
         if ( !empty($author_name) ) {
-                // We do a direct query here because we don't cache by nicename.
-                $title = $wpdb->get_var($wpdb->prepare("SELECT display_name FROM $wpdb->users WHERE user_nicename = %s", $author_name));
+                $title = get_user_by_nicename($author_name);
+                $title = $title->display_name;
         }
 
         // If there's a month

Users/denis/Sites/sem-pro/wp-includes/pluggable.php

@@ -203 +203 @@
 }
 endif;
 
+if ( !function_exists('get_user_by_nicename') ) :
+/**
+ * Retrieve user info by user nicename.
+ *
+ * @since 2.8
+ *
+ * @param string $nicename User's nice nicename
+ * @return bool|object False on failure, User DB row object
+ */
+function get_user_by_nicename($nicename) {
+        global $wpdb;
+
+        $user_id = wp_cache_get($nicename, 'usernicename');
+
+        $user = false;
+        if ( false !== $user_id )
+                $user = wp_cache_get($user_id, 'users');
+
+        if ( false !== $user )
+                return $user;
+
+        if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_nicename = %s", $nicename)) )
+                return false;
+
+        _fill_user($user);
+
+        return $user;
+}
+endif;
+
 if ( !function_exists( 'wp_mail' ) ) :
 /**
  * Send mail, similar to PHP's mail

Users/denis/Sites/sem-pro/wp-admin/includes/user.php

@@ -441 +441 @@
         wp_cache_delete($id, 'users');
         wp_cache_delete($user->user_login, 'userlogins');
         wp_cache_delete($user->user_email, 'useremail');
+        wp_cache_delete($user->user_nicename, 'usernicename');
         
         // allow for commit transaction
         do_action('deleted_user', $id);