Is there a clean API for resetting instance variables on 'reload' in ActiveRecord?

Question

In an ActiveRecord::Base model, I can reset the state of the model to what it was when I got it from the database with reload, as long as the attri

Answer 1

I took gayavat's answer and reworked it into my test_helper.rb file, because I didn't want to override the usual #reload method.

class ActiveRecord::Base
  attr_accessor :default_instance_variables
  after_initialize do 
    @default_instance_variables = instance_variables
  end
end
def reload_ivars(obj)
  obj.reload
  obj.instance_variables.each do |ivar|
    if ivar == :'@default_instance_variables' || 
     obj.default_instance_variables.include?(ivar)
      next 
    end
    obj.send(:remove_instance_variable, ivar)
  end
end

When I need to reload something in a test I just call reload_ivars(object).