第178天学习打卡（项目 谷粒商城20 商品服务API 修改拖拽 数据收集修改批量拖拽效果）
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修改 拖拽 数据收集
父ID排序
<template>
<div>
<el-tree
:data="menus"
:props="defaultProps"
:expand-on-click-node="false"
show-checkbox
node-key="catId"
:default-expanded-keys="expandedKey"
draggable
:allow-drop="allowDrop"
@node-drop="handleDrop"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
v-if="node.level <= 2"
type="text"
size="mini"
@click="() => append(data)"
>
Append
</el-button>
<el-button type="text" size="mini" @click="edit(data)">
edit
</el-button>
<el-button
v-if="node.childNodes.length == 0"
type="text"
size="mini"
@click="() => remove(node, data)"
>
Delete
</el-button>
</span>
</span>
</el-tree>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
width="30%"
:close-on-click-modal="false"
>
<el-form :model="category">
<el-form-item label="分类名称">
<el-input v-model="category.name" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="图标">
<el-input v-model="category.icon" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="计量单位">
<el-input
v-model="category.productUnit"
autocomplete="off"
></el-input>
</el-form-item>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary" @click="submitData">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
export default {
//import引入的组件需要注入到对象中才能使用
components: {},
props: {},
data() {
return {
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "", // edit add
category: {
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
productUnit: "",
icon: "",
catId: null,
},
dialogVisible: false,
menus: [],
expandedKey: [],
defaultProps: {
children: "children",
label: "name",
},
};
},
//监听属性 类似于data概念
computed: {},
//监控data中的数据变化
watch: {},
//方法集合
methods: {
append(data) {
console.log("append", data);
this.dialogType = "add";
this.title = "添加分类";
this.dialogVisible = true;
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
this.category.catId = null;
this.category.name = "";
this.category.icon = "";
this.category.productUnit = "";
this.category.sort = 0;
this.category.showStatus = 1;
},
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log("handleDrop: ", draggingNode, dropNode, dropType);
//1.当前节点最新的父节点id
let pCid = 0;
let siblings = null;
if(dropType == "before" || dropType == "after"){
pCid = dropNode.parent.data.catId == undefined ? 0 : dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
}else{
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
//2.当前拖拽节点的最新顺序
for(let i = 0; i < siblings.length; i++){
if(siblings[i].data.catId == draggingNode.data.catId){
//如果遍历的是当前正在拖拽的节点
this.updateNodes.push({catId:siblings[i].data.catId, sort: i, parentCid: pCid});
}else{
this.updateNodes.push({catId:siblings[i].data.catId, sort: i});
}
}
//3.当前拖拽节点的最新层级
console.log("updateNodes", this.updateNodes);
},
allowDrop(draggingNode, dropNode, type) {
//1.被拖动的当前节点以及所在的父节点总层数不能大于3
//1) 被拖动的当前节点总层数
console.log("allowDrop:", draggingNode, dropNode, type);
this.countNodeLevel(draggingNode.data);
//当前正在拖动的节点+父节点所在的深度不大于3即可
let deep = this.maxLevel - draggingNode.data.catLevel + 1;
console.log("深度", deep);
// this.maxLevel
if (type == "inner") {
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
},
countNodeLevel(node) {
//找出所有子节点，求出最大深度
if (node.children != null && node.children.length > 0) {
for (let i = 0; i < node.children.length; i++) {
if (node.children[i].catLevel > this.maxLevel) {
this.maxLevel = node.children[i].catLevel;
}
this.countNodeLevel(node.children[i]);
}
}
},
edit(data) {
console.log("要修改的数据", data);
this.dialogType = "edit";
this.title = "修改分类";
this.dialogVisible = true;
//发送请求获取当前节点最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
}).then(({ data }) => {
//请求成功
console.log("要回显的数据", data);
this.category.name = data.data.name;
this.category.catId = data.data.catId;
this.category.icon = data.data.icon;
this.category.productUnit = data.data.productUnit;
this.category.parentCid = data.data.parentCid;
this.category.catLevel = data.data.catLevel;
this.category.sort = data.data.sort;
this.category.showStatus = data.data.showStatus;
});
},
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
//修改三级分类数据
editCategory() {
var { catId, name, icon, productUnit } = this.category;
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData({ catId, name, icon, productUnit }, false),
}).then(({ data }) => {
this.$message({
message: "菜单修改成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
//添加三级分类的方法
addCategory() {
console.log("提交的三级分类数据", this.category);
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
this.$message({
message: "菜单保存成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
remove(node, data) {
var ids = [data.catId];
this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
this.$message({
message: "菜单删除成功",
type: "success",
});
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [node.parent.data.catId];
});
})
.catch(() => {});
console.log("remove", node, data);
},
getMenus() {
this.$http({
url: this.$http.adornUrl("/product/category/list/tree"),
method: "get",
}).then(({ data }) => {
console.log("成功获取到菜单数据...", data.data);
this.menus = data.data;
});
},
},
//生命周期 - 创建完成（可以访问当前this实例）
created() {
this.getMenus();
},
//生命周期 - 挂载完成（可以访问DOM元素）
mounted() {},
beforeCreate() {}, //生命周期 - 创建之前
beforeMount() {}, //生命周期 - 挂载之前
beforeUpdate() {}, //生命周期 - 更新之前
updated() {}, //生命周期 - 更新之后
beforeDestroy() {}, //生命周期 - 销毁之前
destroyed() {}, //生命周期 - 销毁完成
activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>
修改当前节点与子节点层级
<template>
<div>
<el-tree
:data="menus"
:props="defaultProps"
:expand-on-click-node="false"
show-checkbox
node-key="catId"
:default-expanded-keys="expandedKey"
draggable
:allow-drop="allowDrop"
@node-drop="handleDrop"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
v-if="node.level <= 2"
type="text"
size="mini"
@click="() => append(data)"
>
Append
</el-button>
<el-button type="text" size="mini" @click="edit(data)">
edit
</el-button>
<el-button
v-if="node.childNodes.length == 0"
type="text"
size="mini"
@click="() => remove(node, data)"
>
Delete
</el-button>
</span>
</span>
</el-tree>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
width="30%"
:close-on-click-modal="false"
>
<el-form :model="category">
<el-form-item label="分类名称">
<el-input v-model="category.name" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="图标">
<el-input v-model="category.icon" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="计量单位">
<el-input
v-model="category.productUnit"
autocomplete="off"
></el-input>
</el-form-item>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary" @click="submitData">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
export default {
//import引入的组件需要注入到对象中才能使用
components: {},
props: {},
data() {
return {
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "", // edit add
category: {
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
productUnit: "",
icon: "",
catId: null,
},
dialogVisible: false,
menus: [],
expandedKey: [],
defaultProps: {
children: "children",
label: "name",
},
};
},
//监听属性 类似于data概念
computed: {},
//监控data中的数据变化
watch: {},
//方法集合
methods: {
append(data) {
console.log("append", data);
this.dialogType = "add";
this.title = "添加分类";
this.dialogVisible = true;
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
this.category.catId = null;
this.category.name = "";
this.category.icon = "";
this.category.productUnit = "";
this.category.sort = 0;
this.category.showStatus = 1;
},
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log("handleDrop: ", draggingNode, dropNode, dropType);
//1.当前节点最新的父节点id
let pCid = 0;
let siblings = null;
if(dropType == "before" || dropType == "after"){
pCid = dropNode.parent.data.catId == undefined ? 0 : dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
}else{
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
//2.当前拖拽节点的最新顺序
for(let i = 0; i < siblings.length; i++){
if(siblings[i].data.catId == draggingNode.data.catId){
//如果遍历的是当前正在拖拽的节点
let catLevel = draggingNode.level;
if(siblings[i].level != draggingNode.level){
//当前节点的层级发生变化
catLevel = siblings[i].level;
//修改他子节点的层级
this.updateChildNodeLevel(siblings[i]);
}
this.updateNodes.push({catId:siblings[i].data.catId, sort: i, parentCid: pCid, catLevel: catLevel});
}else{
this.updateNodes.push({catId:siblings[i].data.catId, sort: i});
}
}
//3.当前拖拽节点的最新层级
console.log("updateNodes", this.updateNodes);
},
updateChildNodeLevel(node){
if(node.childNodes.length > 0){
for(let i = 0; i < node.childNodes.length; i++){
var cNode = node.childNodes[i].data;
this.updateNodes.push({catId:cNode.catId, catLevel: node.childNodes[i].level});
this.updateChildNodeLevel(node.childNodes[i]);
}
}
},
allowDrop(draggingNode, dropNode, type) {
//1.被拖动的当前节点以及所在的父节点总层数不能大于3
//1) 被拖动的当前节点总层数
console.log("allowDrop:", draggingNode, dropNode, type);
this.countNodeLevel(draggingNode.data);
//当前正在拖动的节点+父节点所在的深度不大于3即可
let deep = this.maxLevel - draggingNode.data.catLevel + 1;
console.log("深度", deep);
// this.maxLevel
if (type == "inner") {
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
},
countNodeLevel(node) {
//找出所有子节点，求出最大深度
if (node.children != null && node.children.length > 0) {
for (let i = 0; i < node.children.length; i++) {
if (node.children[i].catLevel > this.maxLevel) {
this.maxLevel = node.children[i].catLevel;
}
this.countNodeLevel(node.children[i]);
}
}
},
edit(data) {
console.log("要修改的数据", data);
this.dialogType = "edit";
this.title = "修改分类";
this.dialogVisible = true;
//发送请求获取当前节点最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
}).then(({ data }) => {
//请求成功
console.log("要回显的数据", data);
this.category.name = data.data.name;
this.category.catId = data.data.catId;
this.category.icon = data.data.icon;
this.category.productUnit = data.data.productUnit;
this.category.parentCid = data.data.parentCid;
this.category.catLevel = data.data.catLevel;
this.category.sort = data.data.sort;
this.category.showStatus = data.data.showStatus;
});
},
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
//修改三级分类数据
editCategory() {
var { catId, name, icon, productUnit } = this.category;
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData({ catId, name, icon, productUnit }, false),
}).then(({ data }) => {
this.$message({
message: "菜单修改成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
//添加三级分类的方法
addCategory() {
console.log("提交的三级分类数据", this.category);
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
this.$message({
message: "菜单保存成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
remove(node, data) {
var ids = [data.catId];
this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
this.$message({
message: "菜单删除成功",
type: "success",
});
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [node.parent.data.catId];
});
})
.catch(() => {});
console.log("remove", node, data);
},
getMenus() {
this.$http({
url: this.$http.adornUrl("/product/category/list/tree"),
method: "get",
}).then(({ data }) => {
console.log("成功获取到菜单数据...", data.data);
this.menus = data.data;
});
},
},
//生命周期 - 创建完成（可以访问当前this实例）
created() {
this.getMenus();
},
//生命周期 - 挂载完成（可以访问DOM元素）
mounted() {},
beforeCreate() {}, //生命周期 - 创建之前
beforeMount() {}, //生命周期 - 挂载之前
beforeUpdate() {}, //生命周期 - 更新之前
updated() {}, //生命周期 - 更新之后
beforeDestroy() {}, //生命周期 - 销毁之前
destroyed() {}, //生命周期 - 销毁完成
activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>
修改 拖拽功能
批量修改
测试
拖拽让upNodes节点清空到默认值
<template>
<div>
<el-tree
:data="menus"
:props="defaultProps"
:expand-on-click-node="false"
show-checkbox
node-key="catId"
:default-expanded-keys="expandedKey"
draggable
:allow-drop="allowDrop"
@node-drop="handleDrop"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
v-if="node.level <= 2"
type="text"
size="mini"
@click="() => append(data)"
>
Append
</el-button>
<el-button type="text" size="mini" @click="edit(data)">
edit
</el-button>
<el-button
v-if="node.childNodes.length == 0"
type="text"
size="mini"
@click="() => remove(node, data)"
>
Delete
</el-button>
</span>
</span>
</el-tree>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
width="30%"
:close-on-click-modal="false"
>
<el-form :model="category">
<el-form-item label="分类名称">
<el-input v-model="category.name" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="图标">
<el-input v-model="category.icon" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="计量单位">
<el-input
v-model="category.productUnit"
autocomplete="off"
></el-input>
</el-form-item>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary" @click="submitData">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
export default {
//import引入的组件需要注入到对象中才能使用
components: {},
props: {},
data() {
return {
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "", // edit add
category: {
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
productUnit: "",
icon: "",
catId: null,
},
dialogVisible: false,
menus: [],
expandedKey: [],
defaultProps: {
children: "children",
label: "name",
},
};
},
//监听属性 类似于data概念
computed: {},
//监控data中的数据变化
watch: {},
//方法集合
methods: {
append(data) {
console.log("append", data);
this.dialogType = "add";
this.title = "添加分类";
this.dialogVisible = true;
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
this.category.catId = null;
this.category.name = "";
this.category.icon = "";
this.category.productUnit = "";
this.category.sort = 0;
this.category.showStatus = 1;
},
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log("handleDrop: ", draggingNode, dropNode, dropType);
//1.当前节点最新的父节点id
let pCid = 0;
let siblings = null;
if (dropType == "before" || dropType == "after") {
pCid =
dropNode.parent.data.catId == undefined
? 0
: dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
} else {
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
//2.当前拖拽节点的最新顺序
for (let i = 0; i < siblings.length; i++) {
if (siblings[i].data.catId == draggingNode.data.catId) {
//如果遍历的是当前正在拖拽的节点
let catLevel = draggingNode.level;
if (siblings[i].level != draggingNode.level) {
//当前节点的层级发生变化
catLevel = siblings[i].level;
//修改他子节点的层级
this.updateChildNodeLevel(siblings[i]);
}
this.updateNodes.push({
catId: siblings[i].data.catId,
sort: i,
parentCid: pCid,
catLevel: catLevel,
});
} else {
this.updateNodes.push({ catId: siblings[i].data.catId, sort: i });
}
}
//3.当前拖拽节点的最新层级
console.log("updateNodes", this.updateNodes);
this.$http({
url: this.$http.adornUrl("/product/category/update/sort"),
method: "post",
data: this.$http.adornData(this.updateNodes, false),
}).then(({ data }) => {
this.$message({
message: "菜单顺序等修改成功",
type: "success",
});
//刷新菜单
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [pCid];
this.updateNodes = [];
this.maxLevel = 0;
});
},
updateChildNodeLevel(node) {
if (node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
var cNode = node.childNodes[i].data;
this.updateNodes.push({
catId: cNode.catId,
catLevel: node.childNodes[i].level,
});
this.updateChildNodeLevel(node.childNodes[i]);
}
}
},
allowDrop(draggingNode, dropNode, type) {
//1.被拖动的当前节点以及所在的父节点总层数不能大于3
//1) 被拖动的当前节点总层数
console.log("allowDrop:", draggingNode, dropNode, type);
this.countNodeLevel(draggingNode.data);
//当前正在拖动的节点+父节点所在的深度不大于3即可
let deep = this.maxLevel - draggingNode.data.catLevel + 1;
console.log("深度", deep);
// this.maxLevel
if (type == "inner") {
console.log(`this.maxLevel:${this.maxLevel}; draggingNode.data.catLevel: ${draggingNode.data.catLevel}; dropNode.level: ${ dropNode.level}`);
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
},
countNodeLevel(node) {
//找出所有子节点，求出最大深度
if (node.children != null && node.children.length > 0) {
for (let i = 0; i < node.children.length; i++) {
if (node.children[i].catLevel > this.maxLevel) {
this.maxLevel = node.children[i].catLevel;
}
this.countNodeLevel(node.children[i]);
}
}
},
edit(data) {
console.log("要修改的数据", data);
this.dialogType = "edit";
this.title = "修改分类";
this.dialogVisible = true;
//发送请求获取当前节点最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
}).then(({ data }) => {
//请求成功
console.log("要回显的数据", data);
this.category.name = data.data.name;
this.category.catId = data.data.catId;
this.category.icon = data.data.icon;
this.category.productUnit = data.data.productUnit;
this.category.parentCid = data.data.parentCid;
this.category.catLevel = data.data.catLevel;
this.category.sort = data.data.sort;
this.category.showStatus = data.data.showStatus;
});
},
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
//修改三级分类数据
editCategory() {
var { catId, name, icon, productUnit } = this.category;
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData({ catId, name, icon, productUnit }, false),
}).then(({ data }) => {
this.$message({
message: "菜单修改成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
//添加三级分类的方法
addCategory() {
console.log("提交的三级分类数据", this.category);
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
this.$message({
message: "菜单保存成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
remove(node, data) {
var ids = [data.catId];
this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
this.$message({
message: "菜单删除成功",
type: "success",
});
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [node.parent.data.catId];
});
})
.catch(() => {});
console.log("remove", node, data);
},
getMenus() {
this.$http({
url: this.$http.adornUrl("/product/category/list/tree"),
method: "get",
}).then(({ data }) => {
console.log("成功获取到菜单数据...", data.data);
this.menus = data.data;
});
},
},
//生命周期 - 创建完成（可以访问当前this实例）
created() {
this.getMenus();
},
//生命周期 - 挂载完成（可以访问DOM元素）
mounted() {},
beforeCreate() {}, //生命周期 - 创建之前
beforeMount() {}, //生命周期 - 挂载之前
beforeUpdate() {}, //生命周期 - 更新之前
updated() {}, //生命周期 - 更新之后
beforeDestroy() {}, //生命周期 - 销毁之前
destroyed() {}, //生命周期 - 销毁完成
activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>
修改批量拖拽效果
<el-switch
v-model="value1"
active-text="按月付费"
inactive-text="按年付费">
</el-switch>
<template>
<div>
<el-switch
v-model="draggable"
active-text="开启拖拽"
inactive-text="关闭拖拽">
</el-switch>
<el-tree
:data="menus"
:props="defaultProps"
:expand-on-click-node="false"
show-checkbox
node-key="catId"
:default-expanded-keys="expandedKey"
:draggable = "draggable"
:allow-drop="allowDrop"
@node-drop="handleDrop"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
v-if="node.level <= 2"
type="text"
size="mini"
@click="() => append(data)"
>
Append
</el-button>
<el-button type="text" size="mini" @click="edit(data)">
edit
</el-button>
<el-button
v-if="node.childNodes.length == 0"
type="text"
size="mini"
@click="() => remove(node, data)"
>
Delete
</el-button>
</span>
</span>
</el-tree>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
width="30%"
:close-on-click-modal="false"
>
<el-form :model="category">
<el-form-item label="分类名称">
<el-input v-model="category.name" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="图标">
<el-input v-model="category.icon" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="计量单位">
<el-input
v-model="category.productUnit"
autocomplete="off"
></el-input>
</el-form-item>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary" @click="submitData">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
export default {
//import引入的组件需要注入到对象中才能使用
components: {},
props: {},
data() {
return {
draggable: false,
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "", // edit add
category: {
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
productUnit: "",
icon: "",
catId: null,
},
dialogVisible: false,
menus: [],
expandedKey: [],
defaultProps: {
children: "children",
label: "name",
},
};
},
//监听属性 类似于data概念
computed: {},
//监控data中的数据变化
watch: {},
//方法集合
methods: {
append(data) {
console.log("append", data);
this.dialogType = "add";
this.title = "添加分类";
this.dialogVisible = true;
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
this.category.catId = null;
this.category.name = "";
this.category.icon = "";
this.category.productUnit = "";
this.category.sort = 0;
this.category.showStatus = 1;
},
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log("handleDrop: ", draggingNode, dropNode, dropType);
//1.当前节点最新的父节点id
let pCid = 0;
let siblings = null;
if (dropType == "before" || dropType == "after") {
pCid =
dropNode.parent.data.catId == undefined
? 0
: dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
} else {
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
//2.当前拖拽节点的最新顺序
for (let i = 0; i < siblings.length; i++) {
if (siblings[i].data.catId == draggingNode.data.catId) {
//如果遍历的是当前正在拖拽的节点
let catLevel = draggingNode.level;
if (siblings[i].level != draggingNode.level) {
//当前节点的层级发生变化
catLevel = siblings[i].level;
//修改他子节点的层级
this.updateChildNodeLevel(siblings[i]);
}
this.updateNodes.push({
catId: siblings[i].data.catId,
sort: i,
parentCid: pCid,
catLevel: catLevel,
});
} else {
this.updateNodes.push({ catId: siblings[i].data.catId, sort: i });
}
}
//3.当前拖拽节点的最新层级
console.log("updateNodes", this.updateNodes);
this.$http({
url: this.$http.adornUrl("/product/category/update/sort"),
method: "post",
data: this.$http.adornData(this.updateNodes, false),
}).then(({ data }) => {
this.$message({
message: "菜单顺序等修改成功",
type: "success",
});
//刷新菜单
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [pCid];
this.updateNodes = [];
this.maxLevel = 0;
});
},
updateChildNodeLevel(node) {
if (node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
var cNode = node.childNodes[i].data;
this.updateNodes.push({
catId: cNode.catId,
catLevel: node.childNodes[i].level,
});
this.updateChildNodeLevel(node.childNodes[i]);
}
}
},
allowDrop(draggingNode, dropNode, type) {
//1.被拖动的当前节点以及所在的父节点总层数不能大于3
//1) 被拖动的当前节点总层数
console.log("allowDrop:", draggingNode, dropNode, type);
this.countNodeLevel(draggingNode.data);
//当前正在拖动的节点+父节点所在的深度不大于3即可
let deep = this.maxLevel - draggingNode.data.catLevel + 1;
console.log("深度", deep);
// this.maxLevel
if (type == "inner") {
console.log(`this.maxLevel:${this.maxLevel}; draggingNode.data.catLevel: ${draggingNode.data.catLevel}; dropNode.level: ${ dropNode.level}`);
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
},
countNodeLevel(node) {
//找出所有子节点，求出最大深度
if (node.children != null && node.children.length > 0) {
for (let i = 0; i < node.children.length; i++) {
if (node.children[i].catLevel > this.maxLevel) {
this.maxLevel = node.children[i].catLevel;
}
this.countNodeLevel(node.children[i]);
}
}
},
edit(data) {
console.log("要修改的数据", data);
this.dialogType = "edit";
this.title = "修改分类";
this.dialogVisible = true;
//发送请求获取当前节点最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
}).then(({ data }) => {
//请求成功
console.log("要回显的数据", data);
this.category.name = data.data.name;
this.category.catId = data.data.catId;
this.category.icon = data.data.icon;
this.category.productUnit = data.data.productUnit;
this.category.parentCid = data.data.parentCid;
this.category.catLevel = data.data.catLevel;
this.category.sort = data.data.sort;
this.category.showStatus = data.data.showStatus;
});
},
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
//修改三级分类数据
editCategory() {
var { catId, name, icon, productUnit } = this.category;
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData({ catId, name, icon, productUnit }, false),
}).then(({ data }) => {
this.$message({
message: "菜单修改成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
//添加三级分类的方法
addCategory() {
console.log("提交的三级分类数据", this.category);
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
this.$message({
message: "菜单保存成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
remove(node, data) {
var ids = [data.catId];
this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
this.$message({
message: "菜单删除成功",
type: "success",
});
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [node.parent.data.catId];
});
})
.catch(() => {});
console.log("remove", node, data);
},
getMenus() {
this.$http({
url: this.$http.adornUrl("/product/category/list/tree"),
method: "get",
}).then(({ data }) => {
console.log("成功获取到菜单数据...", data.data);
this.menus = data.data;
});
},
},
//生命周期 - 创建完成（可以访问当前this实例）
created() {
this.getMenus();
},
//生命周期 - 挂载完成（可以访问DOM元素）
mounted() {},
beforeCreate() {}, //生命周期 - 创建之前
beforeMount() {}, //生命周期 - 挂载之前
beforeUpdate() {}, //生命周期 - 更新之前
updated() {}, //生命周期 - 更新之后
beforeDestroy() {}, //生命周期 - 销毁之前
destroyed() {}, //生命周期 - 销毁完成
activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>
批量拖拽效果 保存
<template>
<div>
<el-switch
v-model="draggable"
active-text="开启拖拽"
inactive-text="关闭拖拽"
>
</el-switch>
<el-button v-if="draggable" @click="batchSave">批量保存</el-button>
<el-tree
:data="menus"
:props="defaultProps"
:expand-on-click-node="false"
show-checkbox
node-key="catId"
:default-expanded-keys="expandedKey"
:draggable="draggable"
:allow-drop="allowDrop"
@node-drop="handleDrop"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
v-if="node.level <= 2"
type="text"
size="mini"
@click="() => append(data)"
>
Append
</el-button>
<el-button type="text" size="mini" @click="edit(data)">
edit
</el-button>
<el-button
v-if="node.childNodes.length == 0"
type="text"
size="mini"
@click="() => remove(node, data)"
>
Delete
</el-button>
</span>
</span>
</el-tree>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
width="30%"
:close-on-click-modal="false"
>
<el-form :model="category">
<el-form-item label="分类名称">
<el-input v-model="category.name" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="图标">
<el-input v-model="category.icon" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="计量单位">
<el-input
v-model="category.productUnit"
autocomplete="off"
></el-input>
</el-form-item>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary" @click="submitData">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
export default {
//import引入的组件需要注入到对象中才能使用
components: {},
props: {},
data() {
return {
pCid: [],
draggable: false,
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "", // edit add
category: {
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
productUnit: "",
icon: "",
catId: null,
},
dialogVisible: false,
menus: [],
expandedKey: [],
defaultProps: {
children: "children",
label: "name",
},
};
},
//监听属性 类似于data概念
computed: {},
//监控data中的数据变化
watch: {},
//方法集合
methods: {
append(data) {
console.log("append", data);
this.dialogType = "add";
this.title = "添加分类";
this.dialogVisible = true;
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
this.category.catId = null;
this.category.name = "";
this.category.icon = "";
this.category.productUnit = "";
this.category.sort = 0;
this.category.showStatus = 1;
},
batchSave() {
this.$http({
url: this.$http.adornUrl("/product/category/update/sort"),
method: "post",
data: this.$http.adornData(this.updateNodes, false),
}).then(({ data }) => {
this.$message({
message: "菜单顺序等修改成功",
type: "success",
});
//刷新菜单
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = this.pCid;
this.updateNodes = [];
this.maxLevel = 0;
// this.pCid = 0;
});
},
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log("handleDrop: ", draggingNode, dropNode, dropType);
//1.当前节点最新的父节点id
let pCid = 0;
let siblings = null;
if (dropType == "before" || dropType == "after") {
pCid =
dropNode.parent.data.catId == undefined
? 0
: dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
} else {
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
this.pCid.push(pCid);
//2.当前拖拽节点的最新顺序
for (let i = 0; i < siblings.length; i++) {
if (siblings[i].data.catId == draggingNode.data.catId) {
//如果遍历的是当前正在拖拽的节点
let catLevel = draggingNode.level;
if (siblings[i].level != draggingNode.level) {
//当前节点的层级发生变化
catLevel = siblings[i].level;
//修改他子节点的层级
this.updateChildNodeLevel(siblings[i]);
}
this.updateNodes.push({
catId: siblings[i].data.catId,
sort: i,
parentCid: pCid,
catLevel: catLevel,
});
} else {
this.updateNodes.push({ catId: siblings[i].data.catId, sort: i });
}
}
//3.当前拖拽节点的最新层级
console.log("updateNodes", this.updateNodes);
},
updateChildNodeLevel(node) {
if (node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
var cNode = node.childNodes[i].data;
this.updateNodes.push({
catId: cNode.catId,
catLevel: node.childNodes[i].level,
});
this.updateChildNodeLevel(node.childNodes[i]);
}
}
},
allowDrop(draggingNode, dropNode, type) {
//1.被拖动的当前节点以及所在的父节点总层数不能大于3
//1) 被拖动的当前节点总层数
console.log("allowDrop:", draggingNode, dropNode, type);
this.countNodeLevel(draggingNode);
//当前正在拖动的节点+父节点所在的深度不大于3即可
let deep = Math.abs(this.maxLevel - draggingNode.level) + 1;
console.log("深度", deep);
// this.maxLevel
if (type == "inner") {
// console.log(`this.maxLevel:${this.maxLevel}; draggingNode.data.catLevel: ${draggingNode.data.catLevel}; dropNode.level: ${ dropNode.level}`);
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
},
countNodeLevel(node) {
//找出所有子节点，求出最大深度
if (node.childNodes != null && node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
if (node.childNodes[i].level > this.maxLevel) {
this.maxLevel = node.childNodes[i].level;
}
this.countNodeLevel(node.childNodes[i]);
}
}
},
edit(data) {
console.log("要修改的数据", data);
this.dialogType = "edit";
this.title = "修改分类";
this.dialogVisible = true;
//发送请求获取当前节点最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
}).then(({ data }) => {
//请求成功
console.log("要回显的数据", data);
this.category.name = data.data.name;
this.category.catId = data.data.catId;
this.category.icon = data.data.icon;
this.category.productUnit = data.data.productUnit;
this.category.parentCid = data.data.parentCid;
this.category.catLevel = data.data.catLevel;
this.category.sort = data.data.sort;
this.category.showStatus = data.data.showStatus;
});
},
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
//修改三级分类数据
editCategory() {
var { catId, name, icon, productUnit } = this.category;
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData({ catId, name, icon, productUnit }, false),
}).then(({ data }) => {
this.$message({
message: "菜单修改成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
//添加三级分类的方法
addCategory() {
console.log("提交的三级分类数据", this.category);
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
this.$message({
message: "菜单保存成功",
type: "success",
});
//关闭对话框
this.dialogVisible = false;
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [this.category.parentCid];
});
},
remove(node, data) {
var ids = [data.catId];
this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
this.$message({
message: "菜单删除成功",
type: "success",
});
//刷新出新的菜单
this.getMenus();
//设置需要默认展开的菜单
this.expandedKey = [node.parent.data.catId];
});
})
.catch(() => {});
console.log("remove", node, data);
},
getMenus() {
this.$http({
url: this.$http.adornUrl("/product/category/list/tree"),
method: "get",
}).then(({ data }) => {
console.log("成功获取到菜单数据...", data.data);
this.menus = data.data;
});
},
},
//生命周期 - 创建完成（可以访问当前this实例）
created() {
this.getMenus();
},
//生命周期 - 挂载完成（可以访问DOM元素）
mounted() {},
beforeCreate() {}, //生命周期 - 创建之前
beforeMount() {}, //生命周期 - 挂载之前
beforeUpdate() {}, //生命周期 - 更新之前
updated() {}, //生命周期 - 更新之后
beforeDestroy() {}, //生命周期 - 销毁之前
destroyed() {}, //生命周期 - 销毁完成
activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>
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