fix: Nested transaction is inactive when embedding dashboard (#30699)

superset/cachekeys/api.py

@@ -114,8 +114,8 @@ class CacheRestApi(BaseSupersetModelRestApi):
                     CacheKey.cache_key.in_(cache_keys)
                 )
 
-                with db.session.begin_nested():
                 db.session.execute(delete_stmt)
+                db.session.commit()  # pylint: disable=consider-using-transaction
 
                 stats_logger_manager.instance.gauge(
                     "invalidated_cache", len(cache_keys)
@@ -126,6 +126,7 @@ class CacheRestApi(BaseSupersetModelRestApi):
                     len(datasource_uids),
                 )
             except SQLAlchemyError as ex:  # pragma: no cover
+                db.session.rollback()  # pylint: disable=consider-using-transaction
                 logger.error(ex, exc_info=True)
                 return self.response_500(str(ex))
         return self.response(201)

superset/dashboards/api.py

@@ -1125,9 +1125,11 @@ class DashboardRestApi(BaseSupersetModelRestApi):
             logger.info("Triggering screenshot ASYNC")
             cache_dashboard_screenshot.delay(
                 username=get_current_user(),
-                guest_token=g.user.guest_token
+                guest_token=(
+                    g.user.guest_token
                     if get_current_user() and isinstance(g.user, GuestUser)
-                else None,
+                    else None
+                ),
                 dashboard_id=dashboard.id,
                 dashboard_url=dashboard_url,
                 cache_key=cache_key,
@@ -1595,15 +1597,16 @@ class DashboardRestApi(BaseSupersetModelRestApi):
         try:
             body = self.embedded_config_schema.load(request.json)
 
-            with db.session.begin_nested():
             embedded = EmbeddedDashboardDAO.upsert(
                 dashboard,
                 body["allowed_domains"],
             )
+            db.session.commit()  # pylint: disable=consider-using-transaction
 
             result = self.embedded_response_schema.dump(embedded)
             return self.response(200, result=result)
         except ValidationError as error:
+            db.session.rollback()  # pylint: disable=consider-using-transaction
             return self.response_400(message=error.messages)
 
     @expose("/<id_or_slug>/embedded", methods=("DELETE",))