/// migrate((db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("i42xt9r6ykqdq3j") // add collection.schema.addField(new SchemaField({ "system": false, "id": "vm4xdjfy", "name": "parentList", "type": "relation", "required": false, "presentable": false, "unique": false, "options": { "collectionId": "i42xt9r6ykqdq3j", "cascadeDelete": true, "minSelect": null, "maxSelect": 1, "displayFields": null } })) return dao.saveCollection(collection) }, (db) => { const dao = new Dao(db) const collection = dao.findCollectionByNameOrId("i42xt9r6ykqdq3j") // remove collection.schema.removeField("vm4xdjfy") return dao.saveCollection(collection) })