How to add attributes to rails params in a controller and pass to different controller

Question

upload_controller
 def create
  file = @upload.file
  content = File.read file
  params['content'] = content
 end
end

Here params['content'] has proper file content.

book_controller
 def create
  @book.description = params['content']
  @book.save
 end
end

But params['content'] in book_controller.rb returns nil

How can I pass content from upload controller to book controller?

Answer 1

May this work

  content = File.read file
  redirect_to url_you_want_to_redirect(content: content)