Class: RSS::Maker::Atom::Feed::Items

Inherits:
ItemsBase
  • Object
show all
Defined in:
lib/rss/maker/opds.rb

Defined Under Namespace

Classes: Item

Instance Method Summary collapse

Instance Method Details

#add_relation(feed, relation, href = nil) ⇒ Object

Raises:

  • (TypeError) 


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# File 'lib/rss/maker/opds.rb', line 67

def add_relation(feed, relation, href=nil)
  self_link = maker.channel.links.find {|link| link.rel == RSS::OPDS::RELATIONS['self']}
  is_navigation_feed = self_link && self_link.type == RSS::OPDS::TYPES['navigation']
  raise TypeError, 'Only navigatfion feed can accept feed' unless is_navigation_feed
  raise ArgumentError, 'Only acquisition feed can be accepted' unless feed.acquisition_feed?
  new_item do |entry|
    [:id, :title, :dc_description, :updated, :rights].each do |attr|
      val = feed.__send__(attr)
      entry.__send__("#{attr}=", val.content) if val
    end
    [:author, :contributor].each do |attr_name|
      plural ||= "#{attr_name}s"
      feed.__send__(plural).each do |val|
        entry.__send__(plural).__send__("new_#{attr_name}") do |attr_maker|
          [:name, :uri, :email].each do |elem|
            attr_val = val.__send__(elem)
            attr_maker.__send__("#{elem}=", attr_val)
          end
        end
      end
    end
    feed.categories.each do |cat|
      entry.categories.new_category do |cat_maker|
        [:term, :scheme, :label].each do |xml_attr|
          val = cat.__send__(xml_attr)
          cat_maker.__send__("#{xml_attr}=", val)
        end
      end
    end
    entry.content.content ||= feed.dc_description || feed.title.content

    entry.links.new_link do |link|
      href = feed.links.find {|ln| ln.rel == RSS::OPDS::RELATIONS['self']}.href unless href
      link.href = href
      link.rel = relation
      link.type = RSS::OPDS::TYPES['acquisition']
      link.title = feed.title.content
      link.hreflang = feed.lang || feed.dc_language
      # Skip "length" attribute because it is for "enclosure" relation and maybe feed here doesn't have it.
    end

    entry
  end
end