Question

我已从已转换为以下数据库的数据库中检索数据：

"items": {
    "title - nameSection": [
        {
            "nameBoard": "xxx",
            "idTask": 1,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "xxx",
            "contentSection": "xxx"
        },
        {
            "nameBoard": "xxx",
            "idTask": 2,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "xxx",
            "contentSection": ""
        }
    ],
    "title 2 - nameSection": [
        {
            "nameBoard": "xxx",
            "idTask": 3,
            "nameTask": "xxx",
            "contentTask": "",
            "complete": 0,
            "idSection": 2,
            "nameSection": "xxx",
            "contentSection": ""
        }
    ]
}

他使用lodash获得的

   let grouped = groupBy(results, function (result) {
        return result.nameSection;
    })

我的结果是来自数据库的原始数据。我注意到lodash将我的“ nameSection”设置为JSON中的键，但是我不知道如何才能获得理想的效果。我正在尝试使用.map（）（对吗？）以获得此结果：

"items": {
    "nameSection": "title - nameSection",
        "data": [
        {
            "nameBoard": "xxx",
            "idTask": 1,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "title - nameSection",
            "contentSection": "xxx"
        },
        {
            "nameBoard": "xxx",
            "idTask": 2,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "title - nameSection",
            "contentSection": ""
        }
    ],
        "nameSection": "title2 - nameSection", 
            "data": [
        {
            "nameBoard": "xxx",
            "idTask": 3,
            "nameTask": "xxx",
            "contentTask": "",
            "complete": 0,
            "idSection": 2,
            "nameSection": "title 2 - nameSection",
            "contentSection": ""
        }
    ]
}

对于解决问题的帮助和提示，我将不胜感激。

Answer 1

使用nameSection键和data数组将对象的条目映射到对象，同时覆盖数组中每个对象的nameSection属性：

const items={"title - nameSection":[{nameBoard:"xxx",idTask:1,nameTask:"xxx",contentTask:"xxx",complete:1,idSection:1,nameSection:"xxx",contentSection:"xxx"},{nameBoard:"xxx",idTask:2,nameTask:"xxx",contentTask:"xxx",complete:1,idSection:1,nameSection:"xxx",contentSection:""}],"title 2 - nameSection":[{nameBoard:"xxx",idTask:3,nameTask:"xxx",contentTask:"",complete:0,idSection:2,nameSection:"xxx",contentSection:""}]};

const output = Object.entries(items)
  .map(([ nameSection, origData ]) => ({
    nameSection,
    data: origData.map(obj => ({ ...obj, nameSection }))
  }))
console.log(output);

如何改变物体的结构

1 个答案: