将 2 列中的 json 数据与模式中的数据进行比较，并将最新数据覆盖为 mongoos 中的主要数据
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【中文标题】将 2 列中的 json 数据与模式中的数据进行比较，并将最新数据覆盖为 mongoos 中的主要数据【英文标题】：Compare json data from 2 column with in schema and overwrite the latest data to main data in mongoos 【发布时间】：2021-09-12 06:23:59 【问题描述】：我正在尝试从 json 数据构建页面， “page_content”列将包含 json，“override_content”列将包含带键的 json 的一个或多个部分。 “override_content” 将始终具有最新更新，如果列为空，则没有覆盖数据。 预期结果是使用内部 json“id”比较“page_content”和“override_content”列中的数据，并将“page_content”中的内容替换为“override_content”列
以下是示例
“page_content”中的数据如下所示， 组件有 3 个孩子，每个孩子都有唯一的“id”
"components":[
"id":"uibuilder:fa10894e44b3460c93912198a99e3629",
"component":
"name":"Hero",
"properties":
"imageUrl":"https://images.unsplash.com/photo-1532298229144-0ec0c57515c7?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80",
"caption1":"New Collection",
"caption2":"About this collection",
"buttonText":"Click Me!"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"20px",
"minHeight":"20px",
"minWidth":"20px",
"overflow":"hidden"
,
"id":"uibuilder:8818c12fe5c94b27b7f7033fec7910b6",
"component":
"name":"Text",
"properties":
"text":"<p>This iss text</p>"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"20px",
"minHeight":"20px",
"minWidth":"20px",
"overflow":"hidden"
,
"id":"uibuilder:8818c12fe5c94b25c94b23fec033fec7",
"component":
"name":"Text New",
"properties":
"text":"<b>Component heading</b>"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"10px",
"minHeight":"10px",
"minWidth":"10px",
"overflow":"hidden"
]
“override_content”列包含第一个和第三个孩子的最新数据，如下所示，
"components":[
"id":"uibuilder:fa10894e44b3460c93912198a99e3629",
"component":
"name":"Hero",
"properties":
"imageUrl":"https://images.unsplash.com/photo-1532298229144-0ec0c57515c7?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80",
"caption1":"Faucet Collection",
"caption2":"",
"buttonText":"Click Me!"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"10px",
"minHeight":"10px",
"minWidth":"10px",
"overflow":"hidden"
,
"id":"uibuilder:8818c12fe5c94b25c94b23fec033fec7",
"component":
"name":"Text New",
"properties":
"imageUrl":"https://images.unsplash.com/photo-1532298229144-0ec0c57515c7?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80",
"caption1":"New Collection",
"caption2":"About this collection",
"buttonText":"Click Me!"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"50px",
"minHeight":"50px",
"minWidth":"50px",
"overflow":"hidden"
]
预期结果： 按子“id”比较两个列数据。 用“覆盖内容”替换“page_content”中的第一个和第三个孩子 保留“page_content”中的第二个孩子
"components":[
"id":"uibuilder:fa10894e44b3460c93912198a99e3629",
"component":
"name":"Hero",
"properties":
"imageUrl":"https://images.unsplash.com/photo-1532298229144-0ec0c57515c7?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80",
"caption1":"Faucet Collection",
"caption2":"",
"buttonText":"Click Me!"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"10px",
"minHeight":"10px",
"minWidth":"10px",
"overflow":"hidden"
,
"id":"uibuilder:8818c12fe5c94b27b7f7033fec7910b6",
"component":
"name":"Text",
"properties":
"text":"<p>This iss text</p>"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"20px",
"minHeight":"20px",
"minWidth":"20px",
"overflow":"hidden"
,
"id":"uibuilder:8818c12fe5c94b25c94b23fec033fec7",
"component":
"name":"Text New",
"properties":
"imageUrl":"https://images.unsplash.com/photo-1532298229144-0ec0c57515c7?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80",
"caption1":"New Collection",
"caption2":"About this collection",
"buttonText":"Click Me!"
,
"componentStyle":
"large":
"display":"flex",
"flexDirection":"column",
"position":"relative",
"flexShrink":"0",
"boxSizing":"border-box",
"marginTop":"50px",
"minHeight":"50px",
"minWidth":"50px",
"overflow":"hidden"
]
我在 ExpressJs 中的 API 如下所示，Pages 是集合 我正在尝试使用猫鼬聚合
router.get('/pages/findit/:_id', (req: Request, res: Response) =>
const id = req.params._id;
if (id && id.length > 0)
const pid = mongoose.Types.ObjectId(id);
Pages.aggregate([
$match: _id: pid
]).exec((err, data) =>
if (err) res.status(HttpStatusEnum.badserver).json(err); return; ;
let result: IResponse =
data: data
;
res.status(HttpStatusEnum.success).json(result);
);
);
谢谢
【问题讨论】：
【参考方案1】：无法通过Mongoose聚合找到方法，但使用外部方法比较和合并json数组，一旦我们从集合中获得结果，会将数据传递到下面的脚本中进行比较和合并， （在我的情况下，一次记录一个需要合并操作）
const sourceJson = components: [ id: 'a' , id: 'b', test: 'a' ] ;
const customJson = components: [ id: 'b', test: 'b' , id: 'c' ] ;
const result = sourceJson.components.map(sj => (
...sj,
...customJson.components.find(cj => sj.id === cj.id)
))
return result;
输出：
"components":["id":"a","id":"b","test":"b","id":"c"]
【讨论】：
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