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[ActiveRecord] Superclass for aborted queries #36694

merged 1 commit into from Jul 16, 2019


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commented Jul 16, 2019

These days, when developer wants to rescue all possible timeouts (but not other query exceptions), they have to do rescue ActiveRecord::QueryCancelled, ActiveRecord::StatementTimeout, ActiveRecord::AdapterTimeout. It's too easy to miss one and don't rescue what you expected.

I'd like to introduce a single super class for all timeout errors to make it easy for developers to do rescue ActiveRecord::QueryAborted.

cc @casperisfine @rafaelfranca @Edouard-chin @bryanparadis

@rails-bot rails-bot bot added the activerecord label Jul 16, 2019

@@ -353,20 +353,24 @@ class Deadlocked < TransactionRollbackError
class IrreversibleOrderError < ActiveRecordError

# Superclass for all timeout-related errors
class Timeout < StatementInvalid

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Edouard-chin Jul 16, 2019


Does it make sense that Timeout still inherits from StatementInvalid? It was previously like this for backward compatibility reasons , but does it still apply now ? cc/ @byroot

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rafaelfranca Jul 16, 2019


Yes. We still need to keep it backward compatible.

@kirs kirs force-pushed the kirs:timeout-error-superclass branch from 71fd438 to 9866497 Jul 16, 2019

@kirs kirs force-pushed the kirs:timeout-error-superclass branch from 9866497 to 730d810 Jul 16, 2019

@kirs kirs changed the title [ActiveRecord] Superclass for timeout errors [ActiveRecord] Superclass for aborted queries Jul 16, 2019


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commented Jul 16, 2019

@rafaelfranca thanks for feedback, updated!

@rafaelfranca rafaelfranca merged commit 1b984fc into rails:master Jul 16, 2019

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buildkite/rails Build #62270 passed (9 minutes, 7 seconds)
codeclimate All good!
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