使用vuejs和javascript迭代嵌套的子代并显示数据

如何解决使用vuejs和javascript迭代嵌套的子代并显示数据

我有带子项的Treeview文件夹结构。有一些文件对象嵌套在子对象中。我想使用vue和javascript根据节点显示这些文件的详细信息。这是模拟数据：

 data:[{
  id: 1,name: ‘Project A’,type: ‘folder’,children: [{
    id: 4,name: 'Project A-1’,files: [
      {
        id: 9,pid: 4,name: ‘file 3-A’,type:’file’,description: ‘wifi’,country: ‘USA'
      },{
        id: 10,name: ‘file 3-B’,description: ‘VPN’,country: ‘USA'
      }
    ]
  }
  ]
},{
  id: 2,name: 'Services’,type: 'folder',children:[],files: [
    {
      id: 5,name: ‘Services-1-A’,pid: 2,country: ‘AUS'
    },{
      id: 6,name: ‘Services-1-B’,description: ‘WIFI’,country: ‘AUS'
    }
  ]
},{
  id: 3,name: 'Servers',type: 'folder’,files: [
    {
      id: 7,name: ‘Servers-1-A’,type: ‘file’,pid: 3,country: ‘CAD'
    },{
      id: 8,name: ‘Servers-1-B',country: ‘CAD'
    }
  ]
}]

UI代码：

<el-row style="background: #f2f2f2">
                  <el-col :span="6">
                   <div class="folder-content">
                     <el-tree
                         node-key="id"
                         :data="data"
                         accordion
                         @node-click="nodeclicked"
                         ref="tree"
                         style="background: #f2f2f2"
                         highlight-current
                         >
                         <span class="custom-tree-node" slot-scope="{ node,data }">
                             <span class="icon-folder" v-if="data.type === 'folder'">
                              <i class="el-icon-folder" aria-hidden="true"></i>
                              <span class="icon-folder_text" @click="showFiles(node.id) >{{ data.name }}</span>
                             </span>
                         </span>
                     </el-tree>
                   </div>
                 </el-col>
                 <el-col :span="12"><div class="entry-content">
                  <ul>
                      <li aria-expanded="false" v-for="(file,index) in files" :key="index">
                           <span class="folder__list"><input type="checkbox" :id= "file" :value="file">
                           <i class="el-icon-document" aria-hidden="true"></i>
                          <span class="folder__name">{{file.name}}</span></span>
                     </li>
                 </ul>
                   </div></el-col>
                 <el-col :span="6"><div class="preview_content"></div></el-col>
               </el-row>

方法：

    showFiles(id) {
  let f = this.data.filter(dataObject => {
    if (dataObject.children && dataObject.children.id === id) {
      return false
    } else if (!dataObject.children && dataObject.id === id) {
      return false
    }
    return true
  })[1]
  this.files = f.files
  console.log(this.files)
}

如果要遍历较深的孩子，我想获取这些文件的详细信息。如果我单击子文件夹“ Project A-1”，那么我想在那些子文件夹中显示那些文件。我试图过滤掉，但它仅显示根文件夹文件（如果有）。我无法在孩子中显示嵌套文件。

我正在使用原型而不是文件来获取整个节点的详细信息

如何迭代和显示？

解决方法

我相信这就是您要寻找的。我在代码中写了注释，以解释我的思考过程。

showFiles(id) {
  for (const dataObject of this.data) {
     if (this.dataObject.children && this.dataObject.children.id === id) { // check if file has children and if the child id is the same as the id. If it is,the files are the files of the nested child
       this.files = this.dataObject.children.files;
       break;
     }
     if (!this.dataObject.children && this.dataObject.id === id) { // if the data object does not have children and the id is the same as the id being looked for,the file is the root folder 
       this.files = this.dataObject.files;
       break;
     }
  }
}