module DiscussionsHelper
  ##
  # Returns a link to a Page model or to the Page owner if applicable.
  #
  def page_or_parent_link(page)
    if page.owner_type.to_s.empty?
      return link_to('Show Wiki Page', page_path(page))
    end
    if page.owner_type == 'Beer'
      link_to "Show Beer Page",
        brewery_beer_path(page.owner.brewery, page.owner)
    else
      link_to("Show #{page.owner_type} Page",
        send("#{page.owner_type.downcase}_path", page))
    end
  end
end