instance method `inherited`

Ruby on Rails 5.2.8.1

Since v4.2.9 Private

Available in: v4.2.9 v5.2.8.1 v6.0.6 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

inherited(subclass)

We need to apply this decorator here, rather than on module inclusion. The closure created by the matcher would otherwise evaluate for ActiveRecord::Base, not the sub class being decorated. As such, changes to lock_optimistically, or locking_column would not be picked up.

Parameters

subclass req

Source

# File activerecord/lib/active_record/locking/optimistic.rb, line 165
            def inherited(subclass)
              subclass.class_eval do
                is_lock_column = ->(name, _) { lock_optimistically && name == locking_column }
                decorate_matching_attribute_types(is_lock_column, :_optimistic_locking) do |type|
                  LockingType.new(type)
                end
              end
              super
            end

Defined in activerecord/lib/active_record/locking/optimistic.rb line 165 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Locking::Optimistic::ClassMethods

Signature

Parameters