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Update upgrading guide about error handling in transactional callbacks

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Prathamesh Sonpatki 2014-09-09 10:11:13 +05:30
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guides/source/upgrading_ruby_on_rails.md
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@ -63,7 +63,22 @@ TODO: mention https://github.com/rails/rails/pull/16526
### Error handling in transaction callbacks
TODO: mention https://github.com/rails/rails/pull/16537
Currently, Active Record suppresses errors raised
within `after_rollback` or `after_commit` callbacks and only prints them to
the logs. In the next version, these errors will no longer be suppressed.
Instead, the errors will propagate normally just like in other Active
Record callbacks.
When you define a `after_rollback` or `after_commit` callback now, you
will receive a deprecation warning about this upcoming change. When
you are ready, you can opt into the new behvaior and remove the
deprecation warning by adding following configuration to your
`config/application.rb`:
config.active_record.raise_in_transactional_callbacks = true
See [#14488](https://github.com/rails/rails/pull/14488) and
[#16537](https://github.com/rails/rails/pull/16537) for more details.
### Serialized attributes