Minor followup to r78822, locally cache the cachedTimestamp so we don't have to do...

diff --git a/includes/QueryPage.php b/includes/QueryPage.php
index 19a0d53..480d74e 100644 (file)
--- a/includes/QueryPage.php
+++ b/includes/QueryPage.php
@@ -85,6 +85,8 @@ abstract class QueryPage extends SpecialPage {
         */
        protected $numRows;
 
+       protected $cachedTimestamp = null;
+
        /**
         * Wheter to show prev/next links
         */
@@ -416,9 +418,13 @@ abstract class QueryPage extends SpecialPage {
        }
        
        public function getCachedTimestamp() {
-               $dbr = wfGetDB( DB_SLAVE );
-               $fname = get_class( $this ) . '::getCachedTimestamp';
-               return $dbr->selectField( 'querycache_info', 'qci_timestamp', array( 'qci_type' => $this->getName() ), $fname );
+               if ( !is_null( $this->cachedTimestamp ) ) {
+                       $dbr = wfGetDB( DB_SLAVE );
+                       $fname = get_class( $this ) . '::getCachedTimestamp';
+                       $this->cachedTimestamp = $dbr->selectField( 'querycache_info', 'qci_timestamp',
+                               array( 'qci_type' => $this->getName() ), $fname );
+               }
+               return $this->cachedTimestamp;
        }
 
        /**