Merge pull request #671 from scientist-softserv/i650-sort-collection-…

…by-publication-and-creation

🎁 Adds collection sorting by publication and creation date

app/controllers/catalog_controller.rb

@@ -22,6 +22,14 @@ def self.title_field
     'title_ssi'
   end
 
+  def self.published_field
+    'date_issued_d_ssi'
+  end
+
+  def self.created_field
+    'date_created_d_ssi'
+  end
+
   # CatalogController-scope behavior and configuration for BlacklightIiifSearch
   include BlacklightIiifSearch::Controller
 
@@ -396,6 +404,10 @@ def self.title_field
     config.add_sort_field "#{uploaded_field} asc", label: "date uploaded \u25B2"
     config.add_sort_field "#{modified_field} desc", label: "date modified \u25BC"
     config.add_sort_field "#{modified_field} asc", label: "date modified \u25B2"
+    config.add_sort_field "#{published_field} desc", label: "date published \u25BC"
+    config.add_sort_field "#{published_field} asc", label: "date published \u25B2"
+    config.add_sort_field "#{created_field} desc", label: "date created \u25BC"
+    config.add_sort_field "#{created_field} asc", label: "date created \u25B2"
 
     # OAI Config fields
     config.oai = {

app/indexers/collection_indexer.rb

@@ -13,6 +13,8 @@ def generate_solr_document
       solr_doc["bulkrax_identifier_sim"] = object.bulkrax_identifier
       solr_doc["account_cname_tesim"] = Site.instance&.account&.cname
       solr_doc[CatalogController.title_field] = object.title.first
+      solr_doc[CatalogController.published_field] = object.date_issued_d
+      solr_doc[CatalogController.created_field] = object.date_created_d
     end
   end