[feature] Receive notification when followed account posts (if desired) (#1680)

* start working on notifs for new posts

* tidy up a bit

* update swagger

* carry over show reblogs + notify from follow req

* test notify on status post

* update column slice

* dedupe update logic + add tests

* fix own boosts not being timelined

* avoid type check, passing unnecessary accounts

* remove unnecessary 'inReplyToID' check

* add a couple todo's for future db functions

1 files changed, 21 insertions, 0 deletions

diff --git a/internal/db/bundb/relationship_follow.go b/internal/db/bundb/relationship_follow.go
index 4a315d116..1b1de77b1 100644
--- a/internal/db/bundb/relationship_follow.go
+++ b/internal/db/bundb/relationship_follow.go
@@ -21,6 +21,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"time"
 
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
@@ -189,6 +190,26 @@ func (r *relationshipDB) PutFollow(ctx context.Context, follow *gtsmodel.Follow)
 	return nil
 }
 
+func (r *relationshipDB) UpdateFollow(ctx context.Context, follow *gtsmodel.Follow, columns ...string) error {
+	follow.UpdatedAt = time.Now()
+	if len(columns) > 0 {
+		// If we're updating by column, ensure "updated_at" is included.
+		columns = append(columns, "updated_at")
+	}
+
+	return r.state.Caches.GTS.Follow().Store(follow, func() error {
+		if _, err := r.conn.NewUpdate().
+			Model(follow).
+			Where("? = ?", bun.Ident("follow.id"), follow.ID).
+			Column(columns...).
+			Exec(ctx); err != nil {
+			return r.conn.ProcessError(err)
+		}
+
+		return nil
+	})
+}
+
 func (r *relationshipDB) DeleteFollowByID(ctx context.Context, id string) error {
 	if _, err := r.conn.NewDelete().
 		Table("follows").