Class: ActiveFedora::RelsExtDatastream

Inherits:
Datastream show all
Includes:
SemanticNode, SolrMapper
Defined in:
lib/active_fedora/rels_ext_datastream.rb

Constant Summary

Constants included from SemanticNode

SemanticNode::PREDICATE_MAPPINGS

Instance Attribute Summary

Attributes included from SemanticNode

#internal_uri, #relationships

Attributes inherited from Datastream

#dirty, #fields, #last_modified

Attributes inherited from Fedora::Datastream

#mime_type

Attributes inherited from Fedora::BaseObject

#attributes, #blob, #errors, #new_object, #uri

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SolrMapper

solr_name, #solr_name

Methods included from SemanticNode

#add_relationship, #assert_kind_of, included, #outbound_relationships, #register_predicate, #register_subject, #register_triple, #relationships_from_class, #to_rels_ext

Methods included from MediaShelfClassLevelInheritableAttributes

included

Methods inherited from Datastream

#after_save, #before_save, #check_concurrency, #content, #content=, #delete, delete, #dirty?, #dsid=, #last_modified_in_repository, #pid, #to_param

Methods inherited from Fedora::Datastream

#control_group, #control_group=, #dsid, #label, #label=, #pid, #uri, #url

Methods inherited from Fedora::BaseObject

#[], #new_object?

Constructor Details

#initialize(attrs = nil) ⇒ RelsExtDatastream

Returns a new instance of RelsExtDatastream.



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# File 'lib/active_fedora/rels_ext_datastream.rb', line 9

def initialize(attrs=nil)
  super
  self.dsid = "RELS-EXT"
end

Class Method Details

.from_xml(tmpl, node) ⇒ Object 



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# File 'lib/active_fedora/rels_ext_datastream.rb', line 33

def self.from_xml(tmpl, node) 
  # node.xpath("./foxml:datastreamVersion[last()]/foxml:xmlContent/rdf:RDF/rdf:Description/*").each do |f|
  node.xpath("./foxml:datastreamVersion[last()]/foxml:xmlContent/rdf:RDF/rdf:Description/*", {"rdf"=>"http://www.w3.org/1999/02/22-rdf-syntax-ns#", "foxml"=>"info:fedora/fedora-system:def/foxml#"}).each do |f|
      r = ActiveFedora::Relationship.new(:subject=>:self, :predicate=>ActiveFedora::SemanticNode::PREDICATE_MAPPINGS.invert[f.name], :object=>f["resource"])
      tmpl.add_relationship(r)
  end
  tmpl.send(:dirty=, false)
  tmpl
end

Instance Method Details

#pid=(pid) ⇒ Object 



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# File 'lib/active_fedora/rels_ext_datastream.rb', line 21

def pid=(pid)
  super
  self.blob = <<-EOL
  <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
    <rdf:Description rdf:about="info:fedora/#{pid}">
    </rdf:Description>
  </rdf:RDF>
  EOL
end

#save ⇒ Object 



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# File 'lib/active_fedora/rels_ext_datastream.rb', line 14

def save
  if @dirty == true
    self.content = to_rels_ext(self.pid)
  end
  super
end

#to_solr(solr_doc = Solr::Document.new) ⇒ Object 



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# File 'lib/active_fedora/rels_ext_datastream.rb', line 43

def to_solr(solr_doc = Solr::Document.new)
  self.relationships.each_pair do |subject, predicates|
    if subject == :self || subject == "info:fedora/#{self.pid}"
      predicates.each_pair do |predicate, values|
        values.each do |val|
          solr_doc << Solr::Field.new(solr_name(predicate, :symbol) => val)
        end
      end
    end
  end
  return solr_doc
end