请教一个 mongoose 的问题

最近写了一个爬虫去采集数据，数据结构大概是

{ id: 'LY-0002-06', developers: 'project_developers', name: 'project_name', pre_licenses: [ '201959', '201963', '202001' ], phone_num: '3189828', address: 'address', purpose: [ 'useful1', 'useful2', 'useful3' ], land_source: '出让', land_area: '38513.48', land_level: '', cover_area: '6559.98', building_area: '77025.49', PR: '1.999', GPR: '30%', building_density: '17.02%', project_cost: '223610000', commencement_data: '2019 年 04 月 08 日', completion_data: '2020 年 09 月 28 日', construction_unit: 'c_unit', survey_unit: 's_unit', approve_sale: { apartment: { number: '724', area: '71905.13' }, shop: { number: '0', area: '0' }, office: { number: '0', area: '0' }, parking: { number: '618', area: '19488.54' }, other: { number: '0', area: '0' } }, selling: { apartment: { number: '13', area: '1038.96' }, shop: { number: '0', area: '0' }, office: { number: '0', area: '0' }, parking: { number: '30', area: '951.6' }, other: { number: '0', area: '0' } }, sold: { apartment: { number: '711', area: '70866.17' }, shop: { number: '0', area: '0' }, office: { number: '0', area: '0' }, parking: { number: '588', area: '18536.94' }, other: { number: '0', area: '0' } }, building: [ { pid: 'LY-0002-06', name: '1', id: '195231' }, { pid: 'LY-0002-06', name: '2', id: '195232' }, { pid: 'LY-0002-06', name: '3', id: '195233' }, { pid: 'LY-0002-06', name: '5', id: '195234' }, { pid: 'LY-0002-06', name: '6', id: '195295' }, { pid: 'LY-0002-06', name: '8', id: '195296' }, { pid: 'LY-0002-06', name: '9', id: '195271' }, { pid: 'LY-0002-06', name: '10', id: '195272' }, { pid: 'LY-0002-06', name: '11', id: '195297' }, { pid: 'LY-0002-06', name: '12', id: '195273' }, { pid: 'LY-0002-06', name: '13', id: '195298' }, { pid: 'LY-0002-06', name: '15', id: '195299' }, { pid: 'LY-0002-06', name: '16', id: '195300' } ] } 

目前是使用 mongoose 的 findOneAndUpdate 方法去新增或更新数据，回调函数只能读取到修改前或修改后的整条记录的值。 目前的需求是我希望能够知道每次变更数据时，具体修改了哪个字段该怎么办呢？