如何在具有动态数据的 react.js 中使用具有行跨度的适当列映射表中深层嵌套的对象？

问题描述

我想将数据映射到表中，以便得到表中所示的结果。如果该类别中有子类别，则类别数据应跨行。同样，子类别应根据类别和子子类别跨越。任何人都可以写下函数来映射 React.js 中的相同内容。我提供 JSON 以供参考，如果您相应地修改 JSON 就可以了。这是 JSON。

[
    {
        "category_id": 6,"parent_id": null,"name": "Western Wear","slug": "western-wear","sort_order": 0,"subCategoryData": [
            {
                "category_id": 7,"parent_id": 6,"name": "Jumpsuite and Rompers","slug": "jumpsuite-and-rompers","subSubCategoryData": [
                    {
                        "category_id": 10,"parent_id": 7,"name": "Rompers","slug": "rompers","sort_order": 0
                    },{
                        "category_id": 11,"name": "Jumpsuite","slug": "jumpsuite","sort_order": 0
                    }
                ]
            },{
                "category_id": 8,"name": "Dresses","slug": "dresses","subSubCategoryData": [
                    {
                        "category_id": 9,"parent_id": 8,"name": "Dress","slug": "dress","sort_order": 0
                    }
                ]
            }
        ]
    },{
        "category_id": 7,"subCategoryData": [
            {
                "category_id": 10,"subSubCategoryData": []
            },{
                "category_id": 11,"subSubCategoryData": []
            }
        ]
    },{
        "category_id": 8,"subCategoryData": [
            {
                "category_id": 9,{
        "category_id": 9,"subCategoryData": []
    }
]

<table className="admin-table">
                    <thead className="tbl-head">
                        <tr className="tbl-head-raw">
                            {/* <th>Gender</th> */}
                            <th>Category</th>
                            <th> Sub-Category</th>
                            <th> Sub-Sub-Category</th>
                            <th>Created on<br />Updated on</th>
                            <th>Status</th>
                            <th>Action</th>
                        </tr>
                    </thead>
                    <tbody>
                        {data.map((category,idx) => <tr>
                            {/* <td rowSpan={12}>Women</td> */}
                            <td>{category.name}</td>
                            {<td rowSpan={category.subCategoryData[0]?.subSubCategoryData?.length}>{
                                category.subCategoryData[0]?.name
                            }</td>}
                            {/* <td>{category.subSubCategoryData?.[0]?.name}</td> */}
                            <td>{'updated at'}</td>
                            <td>{category.slug}</td>
                            <td>
                                <label className="switch">
                                    <input type="checkBox" />
                                    <span className="slider round" />
                                </label>
                            </td>
                            <td className=" edit-view-icon flex">
                                <div className="edit-icon">
                                    <SVG name="#icon-edit" />
                                </div>
                                <div className="view-icon">
                                    <SVG name="#icon-eye" />
                                </div>
                            </td>
                        </tr>)}

                    </tbody>
                </table>

解决方法

由于您的数据数组由三个级别组成，因此您可以像这样将数组分成 3 个级别。

data.map(level1 =>{
    <td>{level1.name}</td>
    <td>{level1.slug}</td>
    ......
    (level1.subCategoryData.length > 0)?
           level1.subCategoryData.map(level2 =>{
              <td>{level2 .name}</td>
              <td>{level2.slug}</td>
              ......
               (level2.subCategoryData.length > 0)?
                  level2.subCategoryData.map(level3 =>{
                     <td>{level3 .name}</td>
                     <td>{level3 .slug}</td>
                       ......
                  })
               : null
           })
    : null
)}