Class: Nelumba::Atom::Entry

Inherits:
Atom::Entry
  • Object
show all
Includes:
Atom::SimpleExtensions
Defined in:
lib/nelumba/atom/entry.rb

Constant Summary collapse

THREAD_NAMESPACE =

The XML namespace that identifies the conforming specification of ‘thr’ elements.

"http://purl.org/syndication/thread/1.0"
ACTIVITY_NAMESPACE =

The XML namespace that identifies the conforming specification.

'http://activitystrea.ms/spec/1.0/'
SCHEMA_ROOT =

The XML schema that identifies the conforming schema for objects.

'http://activitystrea.ms/schema/1.0/'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.from_canonical(obj) ⇒ Object 



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# File 'lib/nelumba/atom/entry.rb', line 85

def self.from_canonical(obj)
  entry_hash = obj.to_hash

  # Ensure that the content type is encoded.
  object = obj.object

  title = object.title

  content = object.text
  content = object.html if object.html

  content_type = nil
  content_type = "html" if object.html

  if object.is_a? Nelumba::Note
  elsif object.is_a? Nelumba::Comment
    content = nil
    content_type = nil
    title = nil
    object = Nelumba::Atom::Comment.from_canonical(object.to_hash)
    entry_hash[:activity_object] = object
  else
    content = nil
    content_type = nil
    title = nil
    entry_hash[:activity_object] = object if object.is_a? Nelumba::Person
  end

  if content
    node = XML::Node.new("content")
    node['type'] = content_type if content_type
    node << content

    xml = XML::Reader.string(node.to_s)
    xml.read
    entry_hash[:content] = ::Atom::Content.parse(xml)
    entry_hash.delete :content_type
  end

  entry_hash[:title] = title if title

  if entry_hash[:source]
    entry_hash[:source] = Nelumba::Atom::Source.from_canonical(entry_hash[:source])
  end

  if entry_hash[:actor]
    entry_hash[:authors] = [Nelumba::Atom::Author.from_canonical(entry_hash[:actor])]
  end
  entry_hash.delete :actor

  # Encode in-reply-to fields
  entry_hash[:thr_in_reply_to] = entry_hash[:in_reply_to].map do |t|
    Nelumba::Atom::Thread.new(:href => t.url,
                            :ref  => t.uid)
  end
  entry_hash.delete :in_reply_to

  entry_hash[:links] ||= []

  if entry_hash[:url]
    entry_hash[:links] << ::Atom::Link.new(:rel => "self", :href => entry_hash[:url])
  end
  entry_hash.delete :url

  object_type = entry_hash[:type]
  if object_type
    entry_hash[:activity_object_type] = SCHEMA_ROOT + object_type.to_s
  end
  if entry_hash[:verb]
    entry_hash[:activity_verb] = SCHEMA_ROOT + entry_hash[:verb].to_s
  end
  entry_hash[:activity_target] = entry_hash[:target] if entry_hash[:target]

  entry_hash[:id] = entry_hash[:uid]
  entry_hash.delete :uid

  entry_hash.delete :object
  entry_hash.delete :verb
  entry_hash.delete :target
  entry_hash.delete :type

  entry_hash[:displayName] = entry_hash[:display_name]
  entry_hash.delete :display_name

  # Remove empty entries
  entry_hash.keys.each do |key|
    if entry_hash[key].nil? || entry_hash[key] == ""
      entry_hash.delete key
    end
  end

  self.new(entry_hash)
end

Instance Method Details



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# File 'lib/nelumba/atom/entry.rb', line 77

def link
  link_list = links.group_by { |l| l.rel.intern if l.rel }
end

#link=(options) ⇒ Object 



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# File 'lib/nelumba/atom/entry.rb', line 81

def link= options
  links.clear << ::Atom::Link.new(options)
end

#to_canonical ⇒ Object 



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# File 'lib/nelumba/atom/entry.rb', line 179

def to_canonical
  # Reform the activity type
  # TODO: Add new Base schema verbs
  object_type = self.activity_object_type
  if object_type && object_type.start_with?(SCHEMA_ROOT)
    object_type.gsub!(/^#{Regexp.escape(SCHEMA_ROOT)}/, "")
  end

  object_type = "note" if object_type == "status"

  if self.activity_object
    object = self.activity_object.to_canonical
  else
    case object_type
    when "note"
      object = Nelumba::Note.new(:html  => self.content.to_s,
                               :title => self.title)
    end
  end

  source = self.source
  source = source.to_canonical if source
  Nelumba::Activity.new(:actor        => self.authors ? self.authors.first.to_canonical : nil,
                      :uid          => self.id,
                      :url          => self.url,
                      :source       => source,
                      :display_name => self.displayName,
                      :in_reply_to  => self.thr_in_reply_to.map(&:to_canonical),
                      :object       => object,
                      :type         => object_type,
                      :verb         => self.activity_verb,
                      :target       => self.activity_target,
                      :published    => self.published,
                      :updated      => self.updated)
end

#url ⇒ Object 



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# File 'lib/nelumba/atom/entry.rb', line 65

def url
  if links.alternate
    links.alternate.href
  elsif links.self
    links.self.href
  else
    links.map.each do |l|
      l.href
    end.compact.first
  end
end