Rails Dup: remapping associations

Question

I am cloning an active record model (called Projects) using "dup". It has several associations; a project has many steps, steps have many images and videos, etc.

I'm finding that when I clone a project, it's successfully creating clones of the project's corresponding steps, images, and videos. However, the images and videos still have the step_ids of the original steps, not the newly created one. Is there an easy way for me to may the IDs to the newly created records?

I'm using the deep_cloneable gem.

This is how I'm creating my clone:

  # Create remix
  def remix
    @project = Project.find(params[:id])
    @remix_project = @project.dup :include => [:steps, :images, :videos]
    @remix_project.remix = @project.id
    @remix_project.title = @project.title+" - "+current_user.username+" Remix"

    respond_to do |format|
      if @remix_project.save
        format.html { }
      end
    end
  end

Answer 1

When dealing with nested attributes, you need to change the format as follows:

@remix_project = @project.dup :include => {:steps => [:images, :videos]}