Clone action in hobo

I am writing code to clone object but have no cue from Hobo documentation.

I know how to do it in Rails but it seems no intuitive way to do it in Hobo.

The scenario is to add an button on a record page, clone an existing record, and redirect to new record after the creation.

For example

POST /papers/10/clone

Then the new record 123 will be created.

After that action, it will redirect to page /papers/123

Are there any examples and guides to achieve the scenario?

If Paper has many Comments, how to clone them as well without permission errors?

Hobo doesn't have any special support for cloning an object, so you'll have to drop down to Rails to do it:

def clone
  paper = Paper.find(params[:id])
  fail if paper.nil?
  clone = paper.clone
  clone.save!
  redirect_to paper_path(clone)
end

You could add this new controller action to your routes via Hobo's web_method hook, but that's designed for something else. You're better off just adding it to your config/routes.rb in a standard Rails fashion.