CODEWITHSUNDEEP
ruby-on-railsactiverecord
Gleb Vishnevsky
Gleb Vishnevsky

Reputation: 605

What happens when update_all fails?

There is update_all method in RoR

And what does it return if it update_all fails? will it raise an exception?

For example: 

ActiveRecord::Base.transaction do
  users = User.active
  users.update_all avatar: 'blablablb'
end

Upvotes: 18

Views: 9649

Answers (1)

Anthony E
Anthony E

Reputation: 11235

update_all is one of many methods that skip validations and callbacks. So any ActiveRecord validations simply won't be run when calling update_all.

However, if the update_all call doesn't conform to a constraint at the database level, or otherwise triggers an exception in your database, then ActiveRecord will throw a ActiveRecord::StatementInvalid exception and will break from the update_all without returning a value, like any other exception.

Other ActiveRecord methods that skip validations include:

  • decrement!
  • decrement_counter
  • increment!
  • increment_counter
  • toggle!
  • touch
  • update_attribute
  • update_column
  • update_counters

Upvotes: 23

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