Merge pull request #19013 from y-yagi/custom_validators_example

use `messages` instead of deprecated `ActiveModel::Errors#[]=` method [ci skip]

1 files changed, 1 insertions, 1 deletions

diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md
index de26a9bd6d..31c5b07a05 100644
--- a/guides/source/active_record_validations.md
+++ b/guides/source/active_record_validations.md
@@ -1078,7 +1078,7 @@ Another way to do this is using `[]=` setter
 ```ruby
   class Person < ActiveRecord::Base
     def a_method_used_for_validation_purposes
-      errors[:name] = "cannot contain the characters !@#%*()_-+="
+      errors.messages[:name] << "cannot contain the characters !@#%*()_-+="
     end
   end