component.rb in ddr-models-2.9.0.rc1

- old
+ new

@@ -3,10 +3,11 @@
 #
 # Examples: Page of a book, track of a recording, etc.
 #
 class Component < Ddr::Models::Base
 
+  include Ddr::Models::Captionable
   include Ddr::Models::HasContent
   include Ddr::Models::HasIntermediateFile
   include Ddr::Models::HasMultiresImage
   include Ddr::Models::HasStructMetadata
   include Ddr::Models::Streamable
@@ -15,10 +16,14 @@
   belongs_to :target, :property => :has_external_target, :class_name => 'Target'
 
   alias_method :item, :parent
   alias_method :item=, :parent=
 
+  STRUCTURALLY_RELEVANT_DATASTREAMS = [ Ddr::Datastreams::CAPTION, Ddr::Datastreams::CONTENT,
+                                        Ddr::Datastreams::INTERMEDIATE_FILE, Ddr::Datastreams::MULTIRES_IMAGE,
+                                        Ddr::Datastreams::STREAMABLE_MEDIA, Ddr::Datastreams::THUMBNAIL ]
+
   def collection
     self.parent.parent rescue nil
   end
 
   def collection_uri
@@ -28,33 +33,38 @@
   def publishable?
     parent.present? && parent.published?
   end
 
   def default_structure
-    build_default_structure if has_content?
+    build_default_structure
   end
 
   private
 
   def build_default_structure
     document = Ddr::Models::Structure.xml_template
     structure = Ddr::Models::Structure.new(document)
     metshdr = structure.add_metshdr
     structure.add_agent(parent: metshdr, role: Ddr::Models::Structures::Agent::ROLE_CREATOR,
                         name: Ddr::Models::Structures::Agent::NAME_REPOSITORY_DEFAULT)
-    filesec = structure.add_filesec
     structmap = structure.add_structmap(type: Ddr::Models::Structure::TYPE_DEFAULT)
-    div = structure.add_div(parent: structmap)
-    filegrp = structure.add_filegrp(parent: filesec)
-    add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_ORIGINAL_FILE,
-                              Ddr::Datastreams::CONTENT)
-    add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_PRESERVATION_MASTER_FILE,
-                              Ddr::Datastreams::CONTENT)
-    add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_INTERMEDIATE_FILE,
-                              Ddr::Datastreams::INTERMEDIATE_FILE) if has_intermediate_file?
-    add_service_file_uses_to_default_structure(structure, filegrp, div)
-    add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_THUMBNAIL_IMAGE,
-                         Ddr::Datastreams::THUMBNAIL) if has_thumbnail?
+    if has_content?
+      filesec = structure.add_filesec
+      div = structure.add_div(parent: structmap)
+      filegrp = structure.add_filegrp(parent: filesec)
+      add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_ORIGINAL_FILE,
+                           Ddr::Datastreams::CONTENT)
+      add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_PRESERVATION_MASTER_FILE,
+                           Ddr::Datastreams::CONTENT)
+      add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_INTERMEDIATE_FILE,
+                           Ddr::Datastreams::INTERMEDIATE_FILE) if has_intermediate_file?
+      add_service_file_uses_to_default_structure(structure, filegrp, div)
+      add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_THUMBNAIL_IMAGE,
+                           Ddr::Datastreams::THUMBNAIL) if has_thumbnail?
+      add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_TRANSCRIPT,
+                           Ddr::Datastreams::CAPTION) if captioned?
+
+    end
     structure
   end
 
   def add_service_file_uses_to_default_structure(structure, filegrp, div)
     add_use_to_structure(structure, filegrp, div, Ddr::Models::Structure::USE_SERVICE_FILE,