Changeset 4798 for trunk/wp-includes/functions.php

Timestamp:

01/25/2007 12:12:08 AM (18 years ago)

Author:

markjaquith

Message:

Cache the non-existence of options to prevent redundant queries. props davidhouse. fixes #2268

File:

• trunk/wp-includes/functions.php (modified) (3 diffs)

trunk/wp-includes/functions.php

@@ -204 +204 @@
     global $wpdb;
 
+    // prevent non-existent options from triggering multiple queries
+    if ( true === wp_cache_get($setting, 'notoptions') )
+        return false;
+
     $value = wp_cache_get($setting, 'options');
 
@@ -216 +220 @@
             $value = $row->option_value;
             wp_cache_set($setting, $value, 'options');
-        } else {
+        } else { // option does not exist, so we must cache its non-existence
+            wp_cache_set($setting, true, 'notoptions');
             return false;
         }
@@ -274 +279 @@
         return true;
     }
+
+    if ( true === wp_cache_get($option_name, 'notoptions') )
+        wp_cache_delete($option_name, 'notoptions');
 
     $_newvalue = $newvalue;