X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/8b873a9b3b8865a4d451263e48b49122b9c32759..d940d88f991c14785110855ba0ee79ea5f401276:/services/api/app/models/pipeline_instance.rb

diff --git a/services/api/app/models/pipeline_instance.rb b/services/api/app/models/pipeline_instance.rb
index 271b155aaf..0b0af8b87d 100644
--- a/services/api/app/models/pipeline_instance.rb
+++ b/services/api/app/models/pipeline_instance.rb
@@ -9,7 +9,10 @@ class PipelineInstance < ArvadosModel
   serialize :components, Hash
   serialize :properties, Hash
   serialize :components_summary, Hash
-  belongs_to :pipeline_template, :foreign_key => :pipeline_template_uuid, :primary_key => :uuid
+  belongs_to :pipeline_template,
+             foreign_key: 'pipeline_template_uuid',
+             primary_key: 'uuid',
+             optional: true
 
   before_validation :bootstrap_components
   before_validation :update_state