Module: RepresentativeFileVersion::ClassMethods

Defined in:
backend/app/model/mixins/representative_file_version.rb

Instance Method Summary collapse

Instance Method Details

#sequel_to_jsonmodel(objs, opts = {}) ⇒ Object 



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# File 'backend/app/model/mixins/representative_file_version.rb', line 13

def sequel_to_jsonmodel(objs, opts = {})
  jsons = super
  return jsons unless AppConfig[:enable_representative_file_version]
  jsons.each do |json|
    case self.name
    when "Resource", "Accession", "ArchivalObject"
      if representative_instance = json.instances.select {|i| i["is_representative"] == true && i["instance_type"] == "digital_object" }.first
        id = JSONModel(:digital_object).id_for(representative_instance["digital_object"]["ref"])
        json["representative_file_version"] = DigitalObject.to_jsonmodel(id)["representative_file_version"]
      end
      if json["representative_file_version"].nil? && representative_instance
        DigitalObjectComponent.filter(:root_record_id => id).select(:id).each do |row|
          # unlikely to scale when the tree is large
          if rep_fv = DigitalObjectComponent.to_jsonmodel(row[:id])["representative_file_version"]
            json["representative_file_version"] = rep_fv
            break
          end
        end
      end

    when "DigitalObject", "DigitalObjectComponent"
      # Compute representative_file_version property, ANW-1493
      fvs = json[:file_versions]

      published_representative_fv = fvs.select { |fv| (fv["publish"] == true || fv["publish"] == 1) && (fv["is_representative"] == true || fv["is_representative"] == 1) }

      published_image_thumbnail_fvs = fvs.select { |fv| (fv["publish"] == true || fv["publish"] == 1) && fv["is_representative"] != true && fv["is_representative"] != 1 && fv["use_statement"] == 'image-thumbnail' }

      published_fvs = fvs.select { |fv| (fv["publish"] == true || fv["publish"] == 1) && fv["is_representative"] != true && fv["is_representative"] != 1 && fv["use_statement"] != 'image-thumbnail' }

      if published_representative_fv.count > 0
        json["representative_file_version"] = published_representative_fv.first
      elsif published_image_thumbnail_fvs.count > 0
        json["representative_file_version"] = published_image_thumbnail_fvs.first
      elsif published_fvs.count > 0
        json["representative_file_version"] = published_fvs.first
      end
    end

    # this could get very ugly
    if json["representative_file_version"].nil? && self.name == "Resource"
      ArchivalObject.filter(:root_record_id => json.id).select(:id).each do |row|
        if rep_fv = ArchivalObject.to_jsonmodel(row[:id])["representative_file_version"]
          json["representative_file_version"] = rep_fv
          break
        end
      end
    end
  end

  jsons
end