Make dct_references_s keys/viewer options configurable

[ewlarson]

This field has values hardcoded into our schema.rb file and reference.rb file. To support custom item viewers, we need to move these values into a configurable file.

Related: https://github.com/geobtaa/geoblacklight_admin/issues/28

[yalamber]

it seems like we also need to add translations in https://github.com/geobtaa/geoblacklight_admin/blob/develop/config/locales/geoblacklight.en.yml

en: geoblacklight:

[yalamber]

After I added new references in the schema and reference rb files. I was able to see the values in dropdown but when I added those references to item_viewer as below

module Geoblacklight
    class ItemViewer
      def initialize(references)
        @references = references
      end

      def viewer_protocol
        return 'map' if viewer_preference.nil?
        viewer_preference.keys.first.to_s
      end

      def viewer_endpoint
        return '' if viewer_preference.nil?
        viewer_preference.values.first.to_s
      end

      # Pull image from b1g_image_ss field
      #
      # The @document object is unavailable
      # Must inspect @references for item viewer vals
      def b1g_image
        if @references.download.present?
          if ['iu.box.com'].any? { |str| @references.download.reference[1].include?(str) }
            viewer = Struct.new(:b1g_image) do
              def to_hash
                { b1g_image: true }
              end
            end

            return viewer.new("b1g_image")
          end
        end
      end

      # Download image
      def download
        if @references.download.present?
          # .jpg (Michigan State / 06e7f566-852a-4914-929d-1bef38132eba)
          # /full/ || /screen/ || /SCREEN (Indiana / 697a9115-cdb3-4108-8a1f-1136e98c24d6)
          # getdownloaditem (Penn State / d943e4bf-efbc-479d-83f6-78dbac2a981f)
          if ['.jpg', '/full/', '/screen/', '/SCREEN ', 'getdownloaditem'].any? { |str| @references.download.reference[1].include?(str) }
            return @references.download
          end
        end
        return nil
      end

      def wms
        @references.wms
      end

      def iiif
        @references.iiif
      end

      def iiif_manifest
        @references.iiif_manifest
      end

      def tiled_map_layer
        @references.tiled_map_layer
      end

      def dynamic_map_layer
        @references.dynamic_map_layer
      end

      def feature_layer
        @references.feature_layer
      end

      def image_map_layer
        @references.image_map_layer
      end

      def index_map
        @references.index_map
      end

      def oembed
        @references.oembed
      end

      def dzi
        @references.dzi
      end

      def geo_tiff
        @references.geo_tiff
      end

      def viewer_preference
        [
          oembed,
          index_map,
          wms,
          iiif_manifest,
          iiif,
          dzi,
          geo_tiff,
          b1g_image,
          download,
          tiled_map_layer,
          dynamic_map_layer,
          image_map_layer,
          feature_layer
        ].compact.map(&:to_hash).first
      end
    end
  end

I am receiving following error

[ewlarson]

How are you overriding the item_viewer.rb file? Is that in something like config/initializers? If not, you might still be picking up the default GBL one instead of your local changes.

Can you share a repo link for me to look closer?