[bugfix] Fix relationship not updating 'following' on accept follow request (#1658)

internal/cache/cache.go

@@ -102,6 +102,9 @@ func (c *Caches) setuphooks() {
 		// Invalidate follow request target account ID cached visibility.
 		c.Visibility.Invalidate("ItemID", followReq.TargetAccountID)
 		c.Visibility.Invalidate("RequesterID", followReq.TargetAccountID)
+
+		// Invalidate any cached follow corresponding to this request.
+		c.GTS.Follow().Invalidate("AccountID.TargetAccountID", followReq.AccountID, followReq.TargetAccountID)
 	})
 
 	c.GTS.Status().SetInvalidateCallback(func(status *gtsmodel.Status) {

internal/db/bundb/relationship_follow_req.go

@@ -204,7 +204,8 @@ func (r *relationshipDB) AcceptFollowRequest(ctx context.Context, sourceAccountI
 		return nil, r.conn.ProcessError(err)
 	}
 
-	// Invalidate follow request from cache lookups.
+	// Invalidate follow request from cache lookups; this will
+	// invalidate the follow as well via the invalidate hook.
 	r.state.Caches.GTS.FollowRequest().Invalidate("ID", followReq.ID)
 
 	// Delete original follow request notification
@@ -225,12 +226,8 @@ func (r *relationshipDB) RejectFollowRequest(ctx context.Context, sourceAccountI
 	}
 
 	// Delete original follow request.
-	if _, err := r.conn.
-		NewDelete().
-		Table("follow_requests").
-		Where("? = ?", bun.Ident("id"), followReq.ID).
-		Exec(ctx); err != nil {
-		return r.conn.ProcessError(err)
+	if err := r.DeleteFollowRequestByID(ctx, followReq.ID); err != nil {
+		return err
 	}
 
 	// Delete original follow request notification

internal/db/bundb/relationship_test.go

@@ -568,6 +568,14 @@ func (suite *RelationshipTestSuite) TestAcceptFollowRequestOK() {
 	account := suite.testAccounts["admin_account"]
 	targetAccount := suite.testAccounts["local_account_2"]
 
+	// Fetch relationship before follow request.
+	relationship, err := suite.db.GetRelationship(ctx, account.ID, targetAccount.ID)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+	suite.False(relationship.Following)
+	suite.False(relationship.Requested)
+
 	followRequest := &gtsmodel.FollowRequest{
 		ID:              "01GEF753FWHCHRDWR0QEHBXM8W",
 		URI:             "http://localhost:8080/weeeeeeeeeeeeeeeee",
@@ -575,10 +583,18 @@ func (suite *RelationshipTestSuite) TestAcceptFollowRequestOK() {
 		TargetAccountID: targetAccount.ID,
 	}
 
-	if err := suite.db.Put(ctx, followRequest); err != nil {
+	if err := suite.db.PutFollowRequest(ctx, followRequest); err != nil {
 		suite.FailNow(err.Error())
 	}
 
+	// Fetch relationship while follow requested.
+	relationship, err = suite.db.GetRelationship(ctx, account.ID, targetAccount.ID)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+	suite.False(relationship.Following)
+	suite.True(relationship.Requested)
+
 	followRequestNotification := &gtsmodel.Notification{
 		ID:               "01GV8MY1Q9KX2ZSWN4FAQ3V1PB",
 		OriginAccountID:  account.ID,
@@ -586,7 +602,7 @@ func (suite *RelationshipTestSuite) TestAcceptFollowRequestOK() {
 		NotificationType: gtsmodel.NotificationFollowRequest,
 	}
 
-	if err := suite.db.Put(ctx, followRequestNotification); err != nil {
+	if err := suite.db.PutNotification(ctx, followRequestNotification); err != nil {
 		suite.FailNow(err.Error())
 	}
 
@@ -599,6 +615,14 @@ func (suite *RelationshipTestSuite) TestAcceptFollowRequestOK() {
 	notification, err := suite.db.GetNotificationByID(ctx, followRequestNotification.ID)
 	suite.ErrorIs(err, db.ErrNoEntries)
 	suite.Nil(notification)
+
+	// Fetch relationship while followed.
+	relationship, err = suite.db.GetRelationship(ctx, account.ID, targetAccount.ID)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+	suite.True(relationship.Following)
+	suite.False(relationship.Requested)
 }
 
 func (suite *RelationshipTestSuite) TestAcceptFollowRequestNoNotification() {