🎁 Add campus to facets

This will render the campus in the facets field.  All of the changes
came from the current ngao app.

Ref:
- #19

app/controllers/catalog_controller.rb

@@ -138,6 +138,7 @@ class CatalogController < ApplicationController
     # :index_range can be an array or range of prefixes that will be used to create the navigation
     #  (note: It is case sensitive when searching values)
 
+    config.add_facet_field 'campus_unit_sim', label: 'Campus', helper_method: :render_campus_facet
     config.add_facet_field 'collection', field: 'collection_ssim', limit: 10
     config.add_facet_field 'creators', field: 'creator_ssim', limit: 10
     config.add_facet_field 'date_range', field: 'date_range_isim', range: true
@@ -152,6 +153,8 @@ class CatalogController < ApplicationController
     # handler defaults, or have no facets.
     config.add_facet_fields_to_solr_request!
 
+    config.add_index_field 'campus_unit_ssm', label: 'Campus', helper_method: :render_campus_name
+
     # solr fields to be displayed in the index (search results) view
     #   The ordering of the field names is the order of the display
     config.add_index_field 'highlight', accessor: 'highlights', separator_options: {
@@ -423,6 +426,8 @@ class CatalogController < ApplicationController
     # Collection and Component Show Page Access Tab - How to Cite Section
     config.add_cite_field 'prefercite', field: 'prefercite_html_tesm', helper_method: :render_html_tags
 
+    config.add_contact_field 'campus_unit_ssm', label: 'Campus', helper_method: :render_campus_name
+
     # Collection and Component Show Page Access Tab - Contact Section
     config.add_contact_field 'repository_contact', values: ->(_, document, _) { document.repository_config&.contact }
 

app/helpers/application_helper.rb

@@ -6,4 +6,13 @@ module ApplicationHelper
   def additional_locale_routing_scopes
     [blacklight, arclight_engine]
   end
+
+  def render_campus_name(args)
+    key = args[:value] || []
+    convert_campus_id(key[0])
+  end
+
+  def render_campus_facet(options = {})
+    convert_campus_id(options)
+  end
 end