/// migrate((app) => { const collection = app.findCollectionByNameOrId("pbc_941672112") // add field collection.fields.addAt(1, new Field({ "cascadeDelete": false, "collectionId": "pbc_1125843985", "hidden": false, "id": "relation1519021197", "maxSelect": 1, "minSelect": 0, "name": "post", "presentable": false, "required": false, "system": false, "type": "relation" })) // add field collection.fields.addAt(2, new Field({ "cascadeDelete": false, "collectionId": "_pb_users_auth_", "hidden": false, "id": "relation2375276105", "maxSelect": 1, "minSelect": 0, "name": "user", "presentable": false, "required": false, "system": false, "type": "relation" })) // add field collection.fields.addAt(3, new Field({ "hidden": false, "id": "select1002219032", "maxSelect": 1, "name": "vote_type", "presentable": false, "required": false, "system": false, "type": "select", "values": [ "like" ] })) return app.save(collection) }, (app) => { const collection = app.findCollectionByNameOrId("pbc_941672112") // remove field collection.fields.removeById("relation1519021197") // remove field collection.fields.removeById("relation2375276105") // remove field collection.fields.removeById("select1002219032") return app.save(collection) })