🎁 Work show pg: Display Part Of as Periodical for Journal Articles (#103)

In the non knapsack app, the part of label was called "Periodical" for
Journal Article work types. For the sake of consistency, the client
would like to keep it this way.

Issue:
- https://github.com/scientist-softserv/adventist-dl/issues/658

# Screenshot

![Screenshot 2023-11-20 at 12-27-01 $1 million in tithe reached by one
church](https://github.com/scientist-softserv/adventist_knapsack/assets/10081604/30c7680d-de45-4878-a45b-e7d37070272c)

## Notes

Adventist proper had a conditional in the [attribute_rows
partial](https://github.com/scientist-softserv/adventist-dl/blob/92879b9c2c8e48c410ff4c8918019f8a8fd39607/app/views/hyrax/journal_articles/_attribute_rows.html.erb#L16-L20)
to change the display label. This conditional no longer exists in
adventist knapsack, so the fix was to add a label.

![Screenshot 2023-11-20 at 12-28-04 Code search
results](https://github.com/scientist-softserv/adventist_knapsack/assets/10081604/629ae674-ac76-475e-81cb-768cd88470a8)

# TODO

We need to bring back a conditional label. For example, Generic Work's
part of would now say Periodical. It seems as though that label should
only apply to Article work types.


[Staging](https://sdapi.s2.adventistdigitallibrary.org/concern/generic_works/dd57667d-7ae3-413c-a2c8-1cdd4bbebcc7?locale=en)
example of Generic Work confirms this:

<img width="1261" alt="image"
src="https://github.com/scientist-softserv/adventist_knapsack/assets/10081604/095826c9-883b-4344-b38c-20dbf08255b8">

Author: Shana Moore

app/presenters/hyku/work_show_presenter_decorator.rb

@@ -9,6 +9,17 @@ def video_embed_viewer?
     def video_embed_viewer
       :video_embed_viewer
     end
+
+    def part_of_label
+      klass = model_klass
+      klass == JournalArticle ? 'Periodical' : 'Part Of'
+    end
+
+    private
+
+      def model_klass
+        model_name.instance_variable_get(:@klass)
+      end
   end
 end
 

app/views/hyrax/base/_attribute_rows.html.erb

@@ -12,7 +12,7 @@
 <% if can? :read, :admin_dashboard %>
   <%= presenter.attribute_to_html(:resource_type, render_as: :faceted) %>
 <% end %>
-<%= presenter.attribute_to_html(:part_of, render_as: :faceted) %>
+<%= presenter.attribute_to_html(:part_of, render_as: :faceted, label: presenter.part_of_label) %>
 <%= presenter.attribute_to_html(:source, render_as: :faceted) %>
 <%= presenter.attribute_to_html(:aark_id, label: I18n.t('dog_biscuits.fields.aark_id')) %>
 <%= presenter.attribute_to_html(:place_of_publication) %>