Rails clone copy or duplicate

Question

I have a nested form and once I save, I want to be able to click a link on the show page to copy or clone that form and open a new one. From there I should be able to make e

Answer 1

I found these answers a little hard to follow. One answer shows this:

@post = Post.new(@existing_post.attributes)

which will not work as it will also pass the id, and timestamp values. I used .dup to fix that and I show that in my answer.

Here's how I achieved creating a new item from an existing item.

The model is for a Product, the controller Products_Controller.rb. We're going to add a new action to the controller called COPY and we're going to link to it from the SHOW view on an existing Product and render a filled out NEW view ready to be edited and saved.

First we create a route for the copy action in routes.rb

resources :Products do
    member do
      get 'copy'
    end
  end

Then a copy action in Products_controller.rb

 def copy
        @source = Product.find(params[:id])
        @product = @source.dup
        render 'new'
      end

Now we need to add a Link to the SHOW view to call our copy action.

<%= link_to "copy", copy_product_path(params[:id]) %>

This worked for me. I hope it works for you and that the answer is simple enough to follow.