Ruby on Rails deep copy/ deep clone of object and its attributes

Question

I would like to do a deep copy on objects including all the attributes.

The experiment_old is has 10 trials. And I want to copy everything to experiment_new with the 10

Answer 1

You should clone every trial and assign them to the cloned experiment:

@experiment_new = @experiment_old.clone
@experiment_old.trials.each do |trial|
  @experiment_new.trials << trial.clone
end