Merge pull request #1175 from pulibrary/sibling-ids-present

ensure sibling ids are present for linked doc query

Author: escowles

.rubocop.yml

@@ -38,6 +38,7 @@ Metrics/AbcSize:
     - 'app/models/concerns/blacklight/solr/document/marc.rb'
     - 'app/models/concerns/blacklight/document/dublin_core.rb'
     - 'app/models/concerns/blacklight/document/ris.rb'
+    - 'app/services/linked_document_resolver.rb'
     - 'config/initializers/requests_initializer.rb'
     - 'lib/orangelight/bibdata.rb'
     - 'lib/orangelight/browse_lists.rb'

app/services/linked_document_resolver.rb

@@ -18,7 +18,8 @@ def initialize(root:, siblings:, solr_field:)
     # Retrieves the Solr documents for each adjacent node
     # @return [Array<SolrDocument>] sibling documents
     def siblings
-      return [] unless response.key?('response') && !response['response']['docs'].empty?
+      return [] unless @siblings.present? && response.key?('response') &&
+                       !response['response']['docs'].empty?
 
       sibling_docs = response['response']['docs'].reject { |document| document['id'] == @root }
       sibling_docs.map { |document| SolrDocument.new(document) }