From 23fc24278c979c3a814747ffaaeabf8a21a4b5c2 Mon Sep 17 00:00:00 2001
From: Boone Gorges <boonebgorges@git.wordpress.org>
Date: Wed, 18 Nov 2015 21:33:03 +0000
Subject: [PATCH] Eliminate a db query when building the admin menu for
 non-privileged users.

Users who cannot `edit_posts` do not see the Comments nav item anyway, so
don't bother running a query that gets a comment count to display in the menu.

Props bordoni, johnbillion.
Fixes #19372.

git-svn-id: https://develop.svn.wordpress.org/trunk@35691 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/menu.php | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/wp-admin/menu.php b/src/wp-admin/menu.php
index d04fd3c12f..64f80190cf 100644
--- a/src/wp-admin/menu.php
+++ b/src/wp-admin/menu.php
@@ -67,10 +67,21 @@ $menu[15] = array( __('Links'), 'manage_links', 'link-manager.php', '', 'menu-to
 
 // $menu[20] = Pages
 
-$awaiting_mod = wp_count_comments();
-$awaiting_mod = $awaiting_mod->moderated;
-$menu[25] = array( sprintf( __('Comments %s'), "<span class='awaiting-mod count-$awaiting_mod'><span class='pending-count'>" . number_format_i18n($awaiting_mod) . "</span></span>" ), 'edit_posts', 'edit-comments.php', '', 'menu-top menu-icon-comments', 'menu-comments', 'dashicons-admin-comments' );
-unset($awaiting_mod);
+// Avoid the comment count query for users who cannot edit_posts.
+if ( current_user_can( 'edit_posts' ) ) {
+	$awaiting_mod = wp_count_comments();
+	$awaiting_mod = $awaiting_mod->moderated;
+	$menu[25] = array(
+		sprintf( __( 'Comments %s' ), '<span class="awaiting-mod count-' . absint( $awaiting_mod ) . '"><span class="pending-count">' . number_format_i18n( $awaiting_mod ) . '</span></span>' ),
+		'edit_posts',
+		'edit-comments.php',
+		'',
+		'menu-top menu-icon-comments',
+		'menu-comments',
+		'dashicons-admin-comments',
+	);
+	unset( $awaiting_mod );
+}
 
 $submenu[ 'edit-comments.php' ][0] = array( __('All Comments'), 'edit_posts', 'edit-comments.php' );