将来自 2 列的 json 数据与架构中的数据进行比较，并将最新数据覆盖到 mongoos 中的主要数据

Question

我正在尝试从 json 数据构建一个页面， “page_content”列将具有 json，而“override_content”列将具有 json 的一个或多个部分以及键。 “override_content”将始终具有最新更新，如果列为空则无覆盖数据。预期结果是使用内部 json“id”比较“page_content”和“override_content”两列的数据，并将“page_content”中的内容替换为“[=” 36=]" 列

下面是例子

“page_content”中的数据如下所示，组件有 3 child 每个 child 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" 列有第一个和第三个 child 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：通过 child“id”比较两个列数据。将“page_content”中的第一个和第三个 child 替换为“覆盖内容” 保留“page_content”中的第二个 Child

{
"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"
            }
        }
    }
]

}

我的 API 在 ExpressJs 中如下所示，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

Answer 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，将把数据传递到下面的脚本中进行比较并合并，（在我的情况下，一次需要对单个记录进行合并操作）

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"}]}

将来自 2 列的 json 数据与架构中的数据进行比较，并将最新数据覆盖到 mongoos 中的主要数据

Compare json data from 2 column with in schema and overwrite the latest data to main data in mongoos

json

mongoose

mongodb

express

findandmodify