X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/acced3c41adda16e8ea8ee9581edd8879c00fcfa..2eb7a28fa7900a005bf48dc40dd1af16d0bc455d:/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 77a0736b00..f84c4a310f 100644
--- a/services/api/app/models/pipeline_instance.rb
+++ b/services/api/app/models/pipeline_instance.rb
@@ -10,6 +10,7 @@ class PipelineInstance < ArvadosModel
   before_validation :bootstrap_components
   before_validation :update_state
   before_validation :verify_status
+  before_validation :update_timestamps_when_state_changes
   before_create :set_state_before_save
   before_save :set_state_before_save
 
@@ -136,4 +137,17 @@ class PipelineInstance < ArvadosModel
     end
   end
 
+  def update_timestamps_when_state_changes
+    return if not (state_changed? or new_record?)
+
+    case state
+    when RunningOnServer, RunningOnClient
+      self.started_at ||= db_current_time
+    when Failed, Complete
+      current_time = db_current_time
+      self.started_at ||= current_time
+      self.finished_at ||= current_time
+    end
+  end
+
 end