NoMethodError: undefined method `halt_callback_chains_on_return_false=' for ActiveSupport:Module

Question

I\'ve been developing this RoR 5.1 application for a while, and I need to add a new migration now:

class AddActiveFlagToParameters < ActiveRecord::Migrati         


        

Answer 1

halt_callback_chains_on_return_false setting in the initializer was a solution for temporary keeping old callback behaviour after upgrade to Rails 5.0. Assumed that you need time to check all callbacks in the app and after it you can remove this setting. And assumed that on the upgrade to 5.2 all is already checked, so this setting is removed.

Before Rails 5, returning false from any before_ callback in ActiveModel or ActiveModel::Validations, ActiveRecord and ActiveSupport resulted in halting of callback chain.

Starting from Rails 5.0 if any before_ callback returns false then callback chain is not halted. To explicitly halt the callback chain, we need to use throw(:abort).

So you need to check all before_callbacks in the app for proper behaviour, change them if needed and remove this line from initializer after it.

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