code: def links
        url = @controller.request.url
        url = url.split('.')[0..-2].join('.') if url =~ /\.\w+$/
  
        parent_url  = url.split('/')[0..-2].join('/')
        parent_name = parent_url.split('/')[0..-2].last.singularize
  
        _links = {
          self: { href: url },
          parent_name => { href: parent_url }
        }
  
        { _links: _links }
      end
docs: Internal: Constructs the _links section of the response.
  
   Returns a Hash of the links of the collection. It will include, at least,
   a link to itself.