ChatGPT's update to harden software and run db updates.

2026-10-21 06:53:45 -04:00
parent 1e63076123
commit acc8cb70f5
171 changed files with 9325 additions and 404 deletions
@@ -0,0 +1,19 @@
+<?php
+/** Retry only complete, rollback-safe database work; never put email delivery here. */
+final class DatabaseTransaction {
+    public static function run(PDO $db,callable $work): mixed {
+        if($db->inTransaction())throw new LogicException('Retryable work must own its transaction.');
+        for($attempt=1;$attempt<=3;$attempt++){
+            $db->beginTransaction();
+            try{
+                $result=$work($db);$db->commit();return $result;
+            }catch(Throwable $error){
+                if($db->inTransaction())$db->rollBack();
+                $retryable=$error instanceof PDOException && (in_array((int)($error->errorInfo[1]??0),[1205,1213],true)||$error->getCode()==='40001');
+                if(!$retryable||$attempt===3)throw $error;
+                usleep(random_int(10000,30000)*$attempt);
+            }
+        }
+        throw new LogicException('Transaction attempts exhausted.');
+    }
+}