🎁 BONUS: Display QA term instead of id in search results and facets

This commit adds helper methods to department so that the value will display the terms instead of the id, in the catalog search index and facets. For example, "history" instead of "hst". You could write a spec for these methods for reassurance, and know that this is not the only way to accomplish this. With customizations the dev will often have to come up with solutions of their own.

:gift: BONUS: Display QA term instead of id in search results and facets

This commit adds helper methods to department so that the value will display the terms instead of the id, in the catalog search index and facets. For example, "history" instead of "hst". You could write a spec for these methods for reassurance, and know that this is not the only way to accomplish this. With customizations the dev will often have to come up with solutions of their own.

app/controllers/catalog_controller.rb

@@ -73,6 +73,7 @@ def self.modified_field
     config.add_facet_field 'resource_type_sim', label: "Resource Type", limit: 5
     config.add_facet_field 'creator_sim', limit: 5
     config.add_facet_field 'contributor_sim', label: "Contributor", limit: 5
+    config.add_facet_field 'department_sim', label: "Department", limit: 5, helper_method: :department_facets
     config.add_facet_field 'keyword_sim', limit: 5
     config.add_facet_field 'subject_sim', limit: 5
     config.add_facet_field 'language_sim', limit: 5
@@ -109,7 +110,7 @@ def self.modified_field
     config.add_index_field 'identifier_tesim', helper_method: :index_field_link, field_name: 'identifier'
     config.add_index_field 'embargo_release_date_dtsi', label: "Embargo release date", helper_method: :human_readable_date
     config.add_index_field 'lease_expiration_date_dtsi', label: "Lease expiration date", helper_method: :human_readable_date
-    config.add_index_field 'department_tesim', label: "Department", link_to_search: 'department_sim'
+    config.add_index_field 'department_tesim', label: "Department", helper_method: :department_links
 
     # solr fields to be displayed in the show (single result) view
     #   The ordering of the field names is the order of the display

app/helpers/hyrax/override_helper_behavior.rb

@@ -38,5 +38,14 @@ def search_state_with_facets(params, facet = {})
       state.add_facet_params("#{facet.keys.first}_sim",
                              facet.values.first)
     end
+
+    def department_facets(options)
+      DepartmentsService.label(options)
+    end
+
+    def department_links(options)
+      service = DepartmentsService
+      options[:value].map { |department_id| service.label(department_id) }.join(', ')
+    end
   end
 end