DB: Attach a RemoteDiscussion to each RemoteTicket, for caching comments

config/models

@@ -368,9 +368,11 @@ LocalTicket
 RemoteTicket
     ticket  TicketAuthorRemoteId
     ident   RemoteObjectId
+    discuss RemoteDiscussionId
 
     UniqueRemoteTicket        ticket
     UniqueRemoteTicketIdent   ident
+    UniqueRemoteTicketDiscuss discuss
 
 TicketProjectLocal
     ticket  TicketId

migrations/2020_04_10_rt_rd.model

@@ -0,0 +1,27 @@
+Instance
+    host Host
+
+    UniqueInstance host
+
+RemoteObject
+    instance InstanceId
+    ident    LocalURI
+
+    UniqueRemoteObject instance ident
+
+RemoteTicket
+    ticket  Int64
+    ident   RemoteObjectId
+    discuss RemoteDiscussionId
+
+    UniqueRemoteTicket      ticket
+    UniqueRemoteTicketIdent ident
+
+Discussion
+
+RemoteDiscussion
+    ident   RemoteObjectId
+    discuss DiscussionId
+
+    UniqueRemoteDiscussionIdent ident
+    UniqueRemoteDiscussion      discuss

src/Vervis/Federation/Ticket.hs

@@ -709,9 +709,16 @@ projectCreateTicketF now shrRecip prjRecip author body ticket muTarget = do
                     { remoteObjectInstance = remoteAuthorInstance author
                     , remoteObjectIdent    = luTicket
                     }
+                did <- insert Discussion
+                (rdid, rdnew) <- idAndNew <$> insertBy' RemoteDiscussion
+                    { remoteDiscussionIdent   = roid
+                    , remoteDiscussionDiscuss = did
+                    }
+                unless rdnew $ delete did
                 mrtid <- insertUnique RemoteTicket
                     { remoteTicketTicket  = tarid
                     , remoteTicketIdent   = roid
+                    , remoteTicketDiscuss = rdid
                     }
                 case mrtid of
                     Nothing -> do

src/Vervis/Migration.hs

@@ -1518,6 +1518,40 @@ changes hLocal ctx =
         "RemoteActor"
         (Nothing :: Maybe Text)
         "followers"
+      -- 238
+    , addFieldRefRequired''
+        "RemoteTicket"
+        (do iid <- insert $ Instance238 $ Authority "238.fake.fake" Nothing
+            roid <- insert $ RemoteObject238 iid $ LocalURI "/fake/238"
+            did <- insert Discussion238
+            insertEntity $ RemoteDiscussion238 roid did
+        )
+        (Just $ \ (Entity rdidTemp rdTemp) -> do
+            rtids <- selectList ([] :: [Filter RemoteTicket238]) []
+            for_ rtids $ \ (Entity rtid rt) -> do
+                let roid = remoteTicket238Ident rt
+                mrdid <- getKeyBy $ UniqueRemoteDiscussionIdent238 roid
+                rdid <-
+                    case mrdid of
+                        Nothing -> do
+                            did <- insert Discussion238
+                            insert $ RemoteDiscussion238 roid did
+                        Just rdid -> return rdid
+                update rtid [RemoteTicket238Discuss =. rdid]
+
+            delete rdidTemp
+
+            let roidTemp = remoteDiscussion238Ident rdTemp
+            roTemp <- getJust roidTemp
+            delete roidTemp
+            delete $ remoteObject238Instance roTemp
+
+            delete $ remoteDiscussion238Discuss rdTemp
+        )
+        "discuss"
+        "RemoteDiscussion"
+      -- 239
+    , addUnique "RemoteTicket" $ Unique "UniqueRemoteTicketDiscuss" ["discuss"]
     ]
 
 migrateDB

src/Vervis/Migration/Model.hs

@@ -183,6 +183,12 @@ module Vervis.Migration.Model
     , model_2020_02_22
     , model_2020_04_07
     , model_2020_04_09
+    , RemoteTicket238
+    , RemoteTicket238Generic (..)
+    , Instance238Generic (..)
+    , RemoteObject238Generic (..)
+    , Discussion238Generic (..)
+    , RemoteDiscussion238Generic (..)
     )
 where
 
@@ -363,3 +369,5 @@ model_2020_04_07 = $(schema "2020_04_07_tpra")
 
 model_2020_04_09 :: [Entity SqlBackend]
 model_2020_04_09 = $(schema "2020_04_09_rt")
+
+makeEntitiesMigration "238" $(modelFile "migrations/2020_04_10_rt_rd.model")