From 25eed41c4950a6d1596130857841ae773b52f4d0 Mon Sep 17 00:00:00 2001 From: bogdanvlviv Date: Thu, 10 Nov 2016 20:42:23 +0200 Subject: Update guides/source/active_record_querying.md Add info about updating locking column value Follow #26050 and #26871 [ci skip] --- guides/source/active_record_querying.md | 3 +++ 1 file changed, 3 insertions(+) (limited to 'guides') diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md index 38b1ffc4c8..31220f9be2 100644 --- a/guides/source/active_record_querying.md +++ b/guides/source/active_record_querying.md @@ -953,6 +953,9 @@ class Client < ApplicationRecord end ``` +NOTE: Please note that the optimistic locking will be ignored if you update the +locking column's value. + ### Pessimistic Locking Pessimistic locking uses a locking mechanism provided by the underlying database. Using `lock` when building a relation obtains an exclusive lock on the selected rows. Relations using `lock` are usually wrapped inside a transaction for preventing deadlock conditions. -- cgit v1.2.3