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

Rework Jean-Do's answer slightly. It doesn't break default instance_variables and relations.

after_initialize do 
  @default_instance_variables = instance_variables
end

def reload(options = nil)
  super
  self.instance_variables.each do |ivar|
    if ivar == :'@default_instance_variables' || 
      @default_instance_variables.include?(ivar)
      next 
    end
    remove_instance_variable(ivar)
  end
  self
end