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-rw-r--r--classes/Inbox.php39
1 files changed, 37 insertions, 2 deletions
diff --git a/classes/Inbox.php b/classes/Inbox.php
index 014ba3d82..2533210b7 100644
--- a/classes/Inbox.php
+++ b/classes/Inbox.php
@@ -96,12 +96,23 @@ class Inbox extends Memcached_DataObject
$inbox = new Inbox();
$inbox->user_id = $user_id;
- $inbox->notice_ids = call_user_func_array('pack', array_merge(array('N*'), $ids));
+ $inbox->pack($ids);
$inbox->fake = true;
return $inbox;
}
+ /**
+ * Append the given notice to the given user's inbox.
+ * Caching updates are managed for the inbox itself.
+ *
+ * If the notice is already in this inbox, the second
+ * add will be silently dropped.
+ *
+ * @param int @user_id
+ * @param int $notice_id
+ * @return boolean success
+ */
static function insertNotice($user_id, $notice_id)
{
$inbox = DB_DataObject::staticGet('inbox', 'user_id', $user_id);
@@ -114,6 +125,13 @@ class Inbox extends Memcached_DataObject
return false;
}
+ $ids = $inbox->unpack();
+ if (in_array(intval($notice_id), $ids)) {
+ // Already in there, we probably re-ran some inbox adds
+ // due to an error. Skip the dupe silently.
+ return true;
+ }
+
$result = $inbox->query(sprintf('UPDATE inbox '.
'set notice_ids = concat(cast(0x%08x as binary(4)), '.
'substr(notice_ids, 1, %d)) '.
@@ -150,7 +168,7 @@ class Inbox extends Memcached_DataObject
}
}
- $ids = unpack('N*', $inbox->notice_ids);
+ $ids = $inbox->unpack();
if (!empty($since_id)) {
$newids = array();
@@ -229,4 +247,21 @@ class Inbox extends Memcached_DataObject
}
return new ArrayWrapper($items);
}
+
+ /**
+ * Saves a list of integer notice_ids into a packed blob in this object.
+ * @param array $ids list of integer notice_ids
+ */
+ protected function pack(array $ids)
+ {
+ $this->notice_ids = call_user_func_array('pack', array_merge(array('N*'), $ids));
+ }
+
+ /**
+ * @return array of integer notice_ids
+ */
+ protected function unpack()
+ {
+ return unpack('N*', $this->notice_ids);
+ }
}