• el-tree的使用,以及全选反选获取id =>详


         
                <el-tree
                            :data="data"
                            show-checkbox
                            node-key="module_id"
                            ref="tree"
                            highlight-current
                            :props="defaultProps"
                            @check="nodeClick"
                            :check-strictly="ISstrictly"
                        >
                            <span class="custom-tree-node" slot-scope="{ node, data }">
                                <span>{{ data.module_name }}</span>
                                <!-- <span>
                                    <el-button type="text" size="mini" style="margin-left: 5px">({{ data.module }})</el-button>
                                </span> -->
                            </span>
                        </el-tree>
    data() {
            return {
                ISstrictly: true, //编辑的时候 获取数据时候父子级不关联 获取完毕勾选的时候父子级再关联 防止获取数据的时候 子级部分是部分选中 却 显示 全部选中
                checkAll: false, //全选 反选
                select_box: [],
                data: [], //tree
                defaultProps: {
                    children: 'child',
                    label: 'module_name'
                },
                treeLength: '' //所有的子级加起来的长度 用来判断全选 和 已选的长度 是否一致
            };
        },
    // 全选
    handleCheckAllChange(val) { 
                if (this.checkAll) {
              // 判断true 或者 false
    this.$nextTick(function () { this.$refs.tree.setCheckedNodes(this.data); }); } else { this.$nextTick(function () { this.$refs.tree.setCheckedKeys([]); }); } this.$nextTick(function () {
              // 把勾选的id存起来 console.log(
    this.$refs.tree.getCheckedNodes(), 'console.log(this.$refs.tree.getCheckedNodes());'); let select_box = []; this.$refs.tree.getCheckedNodes().forEach((item) => { select_box.push(item.module_id); }); this.select_box = select_box; // console.log(this.select_box, 'select_box888'); }); },
      //当用户点击的时候      
      nodeClick(data, node, e) {
           // 把一进来的状态 父子级是否关联给取消
    this.ISstrictly = false; let select_box = [];
            // 获取到所有已选择的id 存到数组里面 select_box
    = this.$refs.tree.getCheckedKeys().concat(this.$refs.tree.getHalfCheckedKeys()); console.log(select_box, 'select_box'); this.select_box = select_box;
            // 判断是否全选了
    if (this.select_box.length != this.treeLength) { this.checkAll = false; } else { this.checkAll = true; } },
            //获取当前用户的权限列表
            getUserAuthList() {
                this.$axios
                    .post('/platformapi/Auth/getUserAuthList')
                    .then(({ data }) => {
                        console.log(data, '获取当前用户的权限列表');
                        if (data.code == 1) {
                            this.data = data.data;
                            this.$nextTick(function () {
                   
    // this.treeLength = this.$refs.tree.getCheckedNodes().length;
                     //这个函数是计算出所有子节点的个数
    this.treeLength = this.getTreeNodeIDList(this.data); console.log(this.treeLength, '888777'); }); this.$nextTick(function () {this.getSystemUserGroupDetail(); }); } }) .catch((res) => { console.log(res, 'catch'); }); }, //获取树列表的所有节点 ==> 这里是计算出所有子节点的个数 getTreeNodeIDList(data) { var str = 0; const getStr = function (list) { list.forEach(function (row) { if (row.child) { getStr(row.child); str += 1; } else { str += 1; } }); }; getStr(data); this.treeLength = str; return this.treeLength; console.log(this.treeLength, 'this.treeLength'); }, //获取当前用户组详情 getSystemUserGroupDetail() { this.$axios .post('/platformapi/Auth/getSystemUserGroupDetail', { group_id: this.group_id }) .then(({ data }) => { console.log(data, '获取当前用户组详情'); if (data.code == 1) { this.group_name = data.data.group_name; this.desc = data.data.desc; this.select_box = data.data.module_id_array.split(','); this.select_box.forEach((item) => { // console.log(item); item = parseInt(item); });
                  //这里是让返回的id项 默认选中
    this.$refs.tree.setCheckedKeys(this.select_box); this.select_box = this.select_box.map((item) => { return +item; }); console.log(this.select_box, '11');
                  // 是否全选
    if (this.select_box.length == this.treeLength) { this.checkAll = true; } else { this.checkAll = false; this.$nextTick(function () {
                       //这里是获取详情数据完毕过后 则父子级是否关联
    this.ISstrictly = false; }); } } }) .catch((res) => { console.log(res, 'catch'); }); },
          // 保存 save() {
    this.nodeClick(); this.$axios .post('/platformapi/Auth/addUserGroup', { group_id: this.group_id, select_box: this.select_box.join(','), group_name: this.group_name, desc: this.desc }) .then(({ data }) => { console.log(data, '保存'); if (data.code == 1) { this.$message.success(data.message); this.$router.go(-1); } else { this.$message.warning(data.message); } }) .catch((res) => { console.log(res, 'catch'); }); }
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  • 原文地址:https://www.cnblogs.com/xiaoxiaoxun/p/13847597.html
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