/// migrate((app) => { const collection = app.findCollectionByNameOrId("pbc_1305841361") // add field collection.fields.addAt(9, new Field({ "autogeneratePattern": "", "hidden": false, "id": "text1579384326", "max": 0, "min": 0, "name": "name", "pattern": "", "presentable": false, "primaryKey": false, "required": false, "system": false, "type": "text" })) // add field collection.fields.addAt(10, new Field({ "exceptDomains": null, "hidden": false, "id": "email3885137012", "name": "email", "onlyDomains": null, "presentable": false, "required": false, "system": false, "type": "email" })) return app.save(collection) }, (app) => { const collection = app.findCollectionByNameOrId("pbc_1305841361") // remove field collection.fields.removeById("text1579384326") // remove field collection.fields.removeById("email3885137012") return app.save(collection) })