file_asset.rb in hydra-head-3.2.0.pre1

- old
+ new
@@ -1,115 +1,5 @@
 # model for a FileAsset   ActiveFedora object 
 #   a file asset is a generic notion of a file, which could have, for example, image or text or video behaviors.
 class FileAsset < ActiveFedora::Base
-  
-  include Hydra::ModelMethods
-  
-  has_relationship "is_member_of_collection", :has_collection_member, :inbound => true
-  has_bidirectional_relationship "part_of", :is_part_of, :has_part
-
-  # deletes the object identified by pid if it does not have any objects asserting has_collection_member
-  def self.garbage_collect(pid)
-    begin 
-      obj = FileAsset.load_instance(pid)
-      if obj.containers.empty?
-        obj.delete
-      end
-    rescue
-    end
-  end
-  
-  # Returns a human readable filesize appropriate for the given number of bytes (ie. automatically chooses 'bytes','KB','MB','GB','TB')
-  # Based on a bit of python code posted here: http://blogmag.net/blog/read/38/Print_human_readable_file_size
-  # @param [Numeric] file size in bits
-  def bits_to_human_readable(num)
-      ['bytes','KB','MB','GB','TB'].each do |x|
-        if num < 1024.0
-          return "#{num.to_i} #{x}"
-        else
-          num = num/1024.0
-        end
-      end
-  end
-  
-  has_metadata :name => "descMetadata", :type => ActiveFedora::QualifiedDublinCoreDatastream do |m|
-  end
-
-  def label
-    descMetadata.title_values.first
-  end
-      
-  def label=(label)
-    super
-    descMetadata.title_values = label
-  end    
-  
-  # augments add_file_datastream to also put file size (in bytes/KB/MB/GB/TB) in dc:extent 
-  def add_file_datastream(file, opts={})
-    super
-    if file.respond_to?(:size)
-      size = bits_to_human_readable(file.size)
-    elsif file.kind_of?(File)
-      size = bits_to_human_readable(File.size(file))
-    else
-      size = ""
-    end
-    datastreams["descMetadata"].extent_values = size
-  end
-
-  # Mimic the relationship accessor that would be created if a containers relationship existed
-  # Decided to create this method instead because it combines more than one relationship list
-  # from is_member_of_collection and part_of
-  # @param [Hash] opts The options hash that can contain a :response_format value of :id_array, :solr, or :load_from_solr
-  # @return [Array] Objects found through inbound has_collection_member and part_of relationships
-  def containers(opts={})
-    is_member_array = is_member_of_collection(:response_format=>:id_array)
-      
-    if !is_member_array.empty?
-      logger.warn "This object has inbound collection member assertions.  hasCollectionMember will no longer be used to track file_object relationships after active_fedora 1.3.  Use isPartOf assertions in the RELS-EXT of child objects instead."
-      if opts[:response_format] == :solr || opts[:response_format] == :load_from_solr
-        logger.warn ":solr and :load_from_solr response formats for containers search only uses parts relationships (usage of hasCollectionMember is no longer supported)"
-        result = part_of(opts)
-      else
-        con_result = is_member_of_collection(opts)
-        part_of_result = part_of(opts)
-        ary = con_result+part_of_result
-        result = ary.uniq
-      end
-    else
-      result = part_of(opts)
-    end
-    return result
-  end
-
-  # Calls +containers+ with the :id_array option to return a list of pids for containers found.
-  # @return [Array] Container ids (via is_member_of_collection and part_of relationships)
-  def containers_ids
-    containers(:response_format => :id_array)
-  end
-  
-  # Calls +containers+ with the option to load objects found from solr instead of Fedora.      
-  # @return [Array] ActiveFedora::Base objects populated via solr
-  def containers_from_solr
-    containers(:response_format => :load_from_solr)
-  end
-
-   # Override ActiveFedora::Base.to_solr to...
-  # Check if we are dealing with a child of FileAsset and if so when calling to_solr from Solrizer indexer we want to skip loading parent metadata again 
-  #
-  # if known models greater than one (without ActiveFedora::Base) and
-  #   known models contains a child of FileAsset and
-  #   opts[:model_only] == true and
-  #   current object class is FileAsset
-  # that means that the child already has had to_solr called which included metadata from FileAsset
-  # if any of the above is false then call to_solr as normal
-  def to_solr(solr_doc=Hash.new, opts={})
-
-    active_fedora_model_s = solr_doc["active_fedora_model_s"] if solr_doc["active_fedora_model_s"]
-    actual_class = active_fedora_model_s.constantize if active_fedora_model_s
-    if actual_class && actual_class != self.class && actual_class.superclass == FileAsset
-      solr_doc
-    else
-      super(solr_doc,opts)
-    end
-  end
+  include Hydra::Models::FileAsset
 end