/// migrate((db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("e864strfxo14pm4") // add collection.schema.addField(new SchemaField({ "system": false, "id": "ehrmydva", "name": "public", "type": "bool", "required": false, "presentable": false, "unique": false, "options": {} })) return dao.saveCollection(collection) }, (db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("e864strfxo14pm4") // remove collection.schema.removeField("ehrmydva") return dao.saveCollection(collection) })