带有子节点的树状表的父节点拖动排序#Vue3#Sortable插件

使用Sortable插件这里要保证获取到的是父节点的下标，属性newDraggableIndex获取到的就是只有父节点的下标。设置子节点不能被拖动，最后在逐个调用接口进行数据库中顺序的更新。

<template>
 <div class="app-container" v-loading="sortLoading">
  <el-table v-if="refreshTable"
      class="draggable"
      v-loading="loading"
      border
      :data="menuList"
      :row-key="getRowKey"
      :default-expand-all="isExpandAll"
      :tree-props="{ children: 'child', hasChildren: 'hasChildren' }">
    <el-table-column prop="date" label="Date" width="180" />
    <el-table-column prop="name" label="Name" width="180" />
    <el-table-column prop="address" label="Address" />
  </el-table>
 </div>
</template>

<script lang="ts" setup>
import Sortable from "sortablejs";

function getRowKey(row: any) {
  return row.id + row.type + row.key;
}

// 行拖拽
const rowDrag = function () {
  // 要拖拽元素的父容器
  const tbody = document.querySelector(
    ".draggable .el-table__body-wrapper tbody"
  );
  if (!tbody) return;
  Sortable.create(tbody as HTMLElement, {
    //  可被拖拽的子元素，设置只有父节点才能被拖动
    draggable: ".draggable .el-table__row.el-table__row--level-0",
    onEnd(event) {
      console.log("event", event);
      if (
        event.oldDraggableIndex !== undefined &&
        event.newDraggableIndex !== undefined
      ) {
        const temp = [...menuList.value];
        const currRow = temp.splice(event.oldDraggableIndex, 1)[0];
        temp.splice(event.newDraggableIndex, 0, currRow);
        console.log("temp", temp);
        menuList.value = temp.map((item, i: number) => {
          console.log("item", item);
          const parentKey = `parent_${item.id}_${item.type}_${Date.now()}_${i}`;
          const child = item.child.map((child: any, index: number) => {
            const childrenKey = `children_${item.id}_${
              item.type
            }_${Date.now()}_${i}`;
            return {
              ...child,
              key: childrenKey,
            };
          });
          return { ...item, child, key: parentKey };
        });
        console.log("menuList", menuList.value);
        asyncSort();
      }
    },
  });
};

const sortLoading = ref(false);
// 更新菜单排序
function asyncSort() {
  sortLoading.value = true;
  const list = [...menuList.value];
  const apiList = list.map((item, i) => {
    return updateMenu({ ...item, sort: i + 1, pid: "" });
  });
  Promise.all(apiList)
    .then((res) => {
      handleQuery();
      console.log("更新排序成功");
    })
    .catch(() => {
      console.log("部分更新错误");
    })
    .finally(() => (sortLoading.value = false));
}

const tableData = [
  {         "id": "1711314432585502720",
            "iD_Module": "1685955461712580611",
            "code": "fixture",
            "name": "治具管理",
            "component": "/",
            "path": "/fixture",
            "type": 1,
            "isOutSide": false,
            "redirect": "/",
            "alwaysShow": "Y",
            "sort": 1,
            "icon": "fixture",
            "enable": "Y",
            "showEnable": "Y",
            "pid": null,
            "createTime": "2023-10-09 17:35:30",
            "updateTime": "2024-07-09 16:37:30",
            "child": [
                {
                    "id": "1711314714514034688",
                    "iD_Module": "1685955461712580611",
                    "code": "fixture_profile",
                    "name": "治具台账",
                    "component": "/",
                    "path": "profile",
                    "type": 2,
                    "isOutSide": false,
                    "redirect": "/",
                    "alwaysShow": "Y",
                    "sort": 1,
                    "icon": "minus",
                    "enable": "Y",
                    "showEnable": "Y",
                    "pid": "1711314432585502720",
                    "createTime": "2023-10-09 17:36:37",
                    "updateTime": "2023-10-10 19:20:18",
                    "child": null
                },
                {
                    "id": "1711314829744148480",
                    "iD_Module": "1685955461712580611",
                    "code": "fixture_inspect",
                    "name": "治具点检",
                    "component": "/",
                    "path": "inspect",
                    "type": 2,
                    "isOutSide": false,
                    "redirect": "/",
                    "alwaysShow": "Y",
                    "sort": 2,
                    "icon": "minus",
                    "enable": "Y",
                    "showEnable": "Y",
                    "pid": "1711314432585502720",
                    "createTime": "2023-10-09 17:37:04",
                    "updateTime": "2023-10-10 19:20:27",
                    "child": null
                }
            ]
        },
        {
            "id": "1724976315569934336",
            "iD_Module": "1724975614743678976",
            "code": "proposal",
            "name": "提案改善",
            "component": "/",
            "path": "/proposal",
            "type": 1,
            "isOutSide": false,
            "redirect": "/",
            "alwaysShow": "Y",
            "sort": 2,
            "icon": "proposal",
            "enable": "Y",
            "showEnable": "Y",
            "pid": null,
            "createTime": "2023-11-16 10:22:56",
            "updateTime": "2024-07-09 16:37:30",
            "child": null,
        },
]
</script>