Cache fixes:

* We now cache negative lookups; clear them in Memcached_DataObject->insert()
* Mark file.url as a unique key in statusnet.ini so its negative lookups are cleared properly (first save of a notice with a new URL was failing due to double-insert)
* Now using serialization for default in-process cache instead of just saving objects; avoids potential corruption if you save an object to cache, change the original object, then fetch the same key from cache again

1 files changed, 1 insertions, 0 deletions

diff --git a/classes/Memcached_DataObject.php b/classes/Memcached_DataObject.php
index aab1cace6..c31b2a546 100644
--- a/classes/Memcached_DataObject.php
+++ b/classes/Memcached_DataObject.php
@@ -142,6 +142,7 @@ class Memcached_DataObject extends DB_DataObject
 
     function insert()
     {
+        $this->decache(); // in case of cached negative lookups
         $result = parent::insert();
         return $result;
     }