How do you know if a Rails transaction is open?

Question

Ruby on Rails

def some_usefull_regular_action
raise 'method must call with transaction. Rollback' unless transaction.open?
operation A
operation B
end

Controller
def my_action
ActiveRecord.transaction do some_usefull_regular_action
()
operation C
end
end Ps I'm writing from my phone.

Answer 1

def some_usefull_regular_action
  raise 'method must call with transaction. Rollback' unless ActiveRecord::Base.connection.transaction_open?
  operation A
  operation B
end

controller

def my_action
  ActiveRecord::Base.connection.transaction do
    some_usefull_regular_action()
    operation C
  end
end