/// migrate((db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("zfbbb4gbdk9dh6k") collection.viewRule = "" return dao.saveCollection(collection) }, (db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("zfbbb4gbdk9dh6k") collection.viewRule = null return dao.saveCollection(collection) })