From bc948ec092b508b24b33f1d186673961ebf5ea63 Mon Sep 17 00:00:00 2001
From: Iman <imanghafoori1@gmail.com>
Date: Tue, 26 Apr 2022 00:18:34 +0430
Subject: [PATCH] throw deadlock exception (#42129)

---
 Concerns/ManagesTransactions.php | 10 +++++++---
 DeadlockException.php            | 10 ++++++++++
 2 files changed, 17 insertions(+), 3 deletions(-)
 create mode 100644 DeadlockException.php

diff --git a/Concerns/ManagesTransactions.php b/Concerns/ManagesTransactions.php
index d8932d4ee..038e10477 100644
--- a/Concerns/ManagesTransactions.php
+++ b/Concerns/ManagesTransactions.php
@@ -3,6 +3,7 @@
 namespace Illuminate\Database\Concerns;
 
 use Closure;
+use Illuminate\Database\DeadlockException;
 use RuntimeException;
 use Throwable;
 
@@ -87,7 +88,11 @@ protected function handleTransactionException(Throwable $e, $currentAttempt, $ma
                 $this->getName(), $this->transactions
             );
 
-            throw $e;
+            throw new DeadlockException(
+                $e->getMessage(),
+                $e->getCode(),
+                $e->getPrevious()
+            );
         }
 
         // If there was an exception we will rollback this transaction and then we
@@ -226,8 +231,7 @@ protected function handleCommitTransactionException(Throwable $e, $currentAttemp
     {
         $this->transactions = max(0, $this->transactions - 1);
 
-        if ($this->causedByConcurrencyError($e) &&
-            $currentAttempt < $maxAttempts) {
+        if ($this->causedByConcurrencyError($e) && $currentAttempt < $maxAttempts) {
             return;
         }
 
diff --git a/DeadlockException.php b/DeadlockException.php
new file mode 100644
index 000000000..375a39bc9
--- /dev/null
+++ b/DeadlockException.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Illuminate\Database;
+
+use PDOException;
+
+class DeadlockException extends PDOException
+{
+    //
+}