feat(workflows): add archived timestamp

models/workflows.model

@@ -50,4 +50,5 @@ WorkflowWorkflow
     scope       (WorkflowScope TermIdentifier SchoolShorthand SqlBackendKey)  -- TermId, SchoolId, CourseId
     graph       SharedWorkflowGraphId
     state       (WorkflowState FileReference SqlBackendKey)  -- UserId
+    archived    UTCTime Maybe
     deriving Generic

src/Handler/Workflow/Instance/Initiate.hs

@@ -48,9 +48,10 @@ workflowInstanceInitiateR rScope win = workflowsDisabledWarning MsgWorkflowInsta
       
       wwId <- insert WorkflowWorkflow
         { workflowWorkflowInstance = Just wiId
-        , workflowWorkflowScope = workflowInstanceScope
-        , workflowWorkflowGraph = workflowInstanceGraph
+        , workflowWorkflowScope    = workflowInstanceScope
+        , workflowWorkflowGraph    = workflowInstanceGraph
         , workflowWorkflowState
+        , workflowWorkflowArchived = Nothing  -- FIXME: set to now + 2 months if current state is final state
         }
 
       return . Just $ do

src/Utils/Workflow.hs

@@ -200,12 +200,14 @@ getWorkflowWorkflowState' wwId Nothing = withReaderT (projectBackend @SqlBackend
       , workflowWorkflow E.^. WorkflowWorkflowScope
       , workflowWorkflow E.^. WorkflowWorkflowGraph
       , E.veryUnsafeCoerceSqlExprValue $ workflowWorkflow E.^. WorkflowWorkflowState
+      , workflowWorkflow E.^. WorkflowWorkflowArchived
       )
   let
     (   E.Value workflowWorkflowInstance
       , E.Value workflowWorkflowScope
       , E.Value workflowWorkflowGraph
       , E.Value (wwState :: PersistValue) -- Don't parse
+      , E.Value workflowWorkflowArchived
       ) = res
   wwState' <- memcachedBy Nothing (WorkflowWorkflowStateParse wwState) . return $ fromPersistValue wwState
   case wwState' of