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-rw-r--r--classes/Safe_DataObject.php19
1 files changed, 19 insertions, 0 deletions
diff --git a/classes/Safe_DataObject.php b/classes/Safe_DataObject.php
index 021f7b506..08bc6846f 100644
--- a/classes/Safe_DataObject.php
+++ b/classes/Safe_DataObject.php
@@ -43,6 +43,25 @@ class Safe_DataObject extends DB_DataObject
}
/**
+ * Magic function called at clone() time.
+ *
+ * We use this to drop connection with some global resources.
+ * This supports the fairly common pattern where individual
+ * items being read in a loop via a single object are cloned
+ * for individual processing, then fall out of scope when the
+ * loop comes around again.
+ *
+ * As that triggers the destructor, we want to make sure that
+ * the original object doesn't have its database result killed.
+ * It will still be freed properly when the original object
+ * gets destroyed.
+ */
+ function __clone()
+ {
+ $this->_DB_resultid = false;
+ }
+
+ /**
* Magic function called at serialize() time.
*
* We use this to drop a couple process-specific references