Bugfix: Clear Data not clearing documents from Postgres database

script/clear_data.rb

@@ -15,8 +15,12 @@ def main(collection_name)
   solr.delete_by_query "collection_name_facet:#{collection_name}"
   solr.commit
   ActiveRecord::Base.establish_connection(config[:postgres_worker][:activerecord])
-  collection_id = Collection.where(name: collection_name).first.id
-  Item.where(collection_id: collection_id).delete_all
+  if collection = Collection.where(name: collection_name).first
+    Item.where(collection_id: collection.id).delete_all
+    #Delete all documents that point to invalid items.
+    sql = "DELETE FROM documents WHERE item_id NOT IN (SELECT id FROM items);"
+    ActiveRecord::Base.connection.execute(sql)
+  end
   sesame = SesameClient.new(config[:sesame_worker])
   sesame.clear_repository(collection_name)
   sesame.close