From 931b4d4670df9a15448e90bca12bb34fce445115 Mon Sep 17 00:00:00 2001
From: Nicholas Sorokin <nicholas.sorokin@plastyk.com.au>
Date: Fri, 1 Oct 2021 19:31:08 +0930
Subject: [PATCH] Cache page content

hubertusanton/silverstripe-seo#40
---
 code/SeoObjectExtension.php | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/code/SeoObjectExtension.php b/code/SeoObjectExtension.php
index a3e1f7c..f6c1465 100644
--- a/code/SeoObjectExtension.php
+++ b/code/SeoObjectExtension.php
@@ -681,12 +681,16 @@ protected function findLayout() {
 	*
 	*/
 	public function getPageContent() {
+		static $cache = null;
 
-		Config::inst()->update('SSViewer', 'theme_enabled', true);
-		$rendered_layout = $this->RenderLayout();
-		Config::inst()->update('SSViewer', 'theme_enabled', false);
-		return $rendered_layout;
+		if ($cache === null) {
+			Config::inst()->update('SSViewer', 'theme_enabled', true);
+			$rendered_layout = $this->RenderLayout();
+			Config::inst()->update('SSViewer', 'theme_enabled', false);
+			$cache = $rendered_layout;
+		}
 
+		return $cache;
 	}
 
 }