add filesets to search for collection show page

app/controllers/catalog_controller.rb

@@ -40,7 +40,7 @@ def self.modified_field
     config.default_solr_params = {
       qt: "search",
       rows: 10,
-      qf: "title_tesim description_tesim creator_tesim keyword_tesim"
+      qf: "title_tesim description_tesim creator_tesim keyword_tesim all_text_timv"
     }
 
     # Specify which field to use in the tag cloud on the homepage.

app/search_builders/hyrax/collection_member_search_builder_decorator.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+# OVERRIDE: Hyrax 3.4.1 adds filesets to search to allow full text search results on the Collection show pages
+module Hyrax
+  module CollectionMemberSearchBuilderDecorator
+    Hyrax::CollectionMemberSearchBuilder.default_processor_chain += [:show_works_or_works_that_contain_files]
+
+    # These methods include the filesets in the search results
+    def show_works_or_works_that_contain_files(solr_parameters)
+      return if blacklight_params[:q].blank?
+      solr_parameters[:user_query] = blacklight_params[:q]
+      solr_parameters[:q] = new_query
+      solr_parameters[:defType] = 'lucene'
+    end
+
+    # the {!lucene} gives us the OR syntax
+    def new_query
+      "{!lucene}#{interal_query(dismax_query)} #{interal_query(join_for_works_from_files)}"
+    end
+
+    # the _query_ allows for another parser (aka dismax)
+    def interal_query(query_value)
+      "_query_:\"#{query_value}\""
+    end
+
+    # the {!dismax} causes the query to go against the query fields
+    def dismax_query
+      "{!dismax v=$user_query}"
+    end
+
+    # join from file id to work relationship solrized file_set_ids_ssim
+    def join_for_works_from_files
+      "{!join from=#{Hyrax.config.id_field} to=file_set_ids_ssim}#{dismax_query}"
+    end
+  end
+end
+
+Hyrax::CollectionMemberSearchBuilder.prepend(Hyrax::CollectionMemberSearchBuilderDecorator)