js
复制代码
<template>
<div>
<el-switch style="display: block" v-model="draggable" active-color="#13ce66" inactive-color="#ff4949"
active-text="开启拖拽" inactive-text="关闭拖拽">
</el-switch>
<el-button type="success" @click="batchSave" v-if="draggable">批量保存</el-button>
<el-button type="danger" @click="batchDelete">批量删除</el-button>
<el-tree :data="menus" :props="defaultProps" :expand-on-click-node="false" show-checkbox node-key="catId"
:default-expanded-keys="expandKey" :draggable="draggable" :allow-drop="allowDrop" @node-drop="handleDrop"
ref="menuTree">
<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 v-if="node.childNodes.length == 0" type="text" size="mini" @click="() => remove(node, data)">
Delete
</el-button>
<el-button type="text" size="mini" @click="() => edit(data)">
edit
</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>
export default {
data() {
return {
pCid: [],
draggable: false,
updateNodes: [],
maxLevel: 0,
title: "",
dialogType: "",
// 添加的实体类
category: {
catId: null,
name: "",
parentCid: 0,
catLevel: 0,
showStatus: 1,
sort: 0,
icon: "",
productUnit: "",
},
dialogVisible: false,
menus: [],
defaultProps: {
children: "children",
label: "name",
},
expandKey: [],
};
},
activated() {
this.getMenus();
},
methods: {
// 获取到当前【列表】
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.list);
this.menus = data.list;
});
},
// 添加 提示框
append(data) {
// 清空数据
this.category.name = "";
this.category.catId = null;
this.category.icon = "";
this.category.productUnit = "";
this.category.showStatus = 1;
this.category.sort = 0;
// 获取到需要的数据
this.category.parentCid = data.catId;
this.category.catLevel = data.catLevel * 1 + 1;
// 打开 "分类信息 " 对话框
this.dialogVisible = true;
console.log("打开添加的提示框:", data);
// 设置对话框类型：add
this.dialogType = "add";
// 设置对话框标题：添加分类
this.title = "添加分类";
},
// 修改 提示框
edit(data) {
console.log("当前菜单的详情", data);
// 展示 "分类信息 " 对话框
this.dialogVisible = true;
// 设置对话框类型：edit
this.dialogType = "edit";
// 设置对话框标题：修改分类
this.title = "修改分类";
// 获取到需要展示的数据:
// 1. 发送请求获取到最新的数据
this.$http({
url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
method: "get",
params: this.$http.adornParams({}),
}).then(({ data }) => {
console.log("需要回显的数据", data);
this.category.name = data.category.name;
this.category.catId = data.category.catId;
this.category.icon = data.category.icon;
this.category.productUnit = data.category.productUnit;
this.category.parentCid = data.category.parentCid;
});
},
// 【删除】
remove(node, data) {
console.log("remove", node, data);
var ids = [data.catId];
this.$confirm(`此操作将永久删除【${data.name}】菜单, 是否继续?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
})
.then(() => {
// 发送删除后端请求
this.$http({
url: this.$http.adornUrl("/product/category/delete"),
method: "post",
data: this.$http.adornData(ids, false),
}).then(({ data }) => {
// 发送成功：
// 1. 弹出提示框
this.$message({
message: "删除成功",
type: "success",
});
// 2. 删除成功以后，再获取菜单
this.getMenus();
// 3. 设置需要默认展开的菜单
this.expandKey = [node.parent.data.catId];
});
})
.catch(() => { });
},
// 【添加】
addCategory() {
this.$http({
url: this.$http.adornUrl("/product/category/save"),
method: "post",
data: this.$http.adornData(this.category, false),
}).then(({ data }) => {
// 添加成功：
// 1. 弹出提示框
this.$message({
message: "保存成功",
type: "success",
});
// 2. 关闭对话框
this.dialogVisible = false;
// 2. 操作成功以后，再获取菜单
this.getMenus();
// 4. 设置需要默认展开的菜单
this.expandKey = [this.category.parentCid];
});
console.log("添加三级分类:", this.category);
},
// 【修改】
editCategory() {
var { catId, name, icon, productUnit } = this.category;
var data = {
catId: catId,
name: name,
icon: icon,
productUnit: productUnit,
};
this.$http({
url: this.$http.adornUrl("/product/category/update"),
method: "post",
data: this.$http.adornData(data, false),
}).then(({ data }) => {
// 1. 弹出提示框
this.$message({
message: "修改成功",
type: "success",
});
// 2. 关闭对话框
this.dialogVisible = false;
// 2. 操作成功以后，再获取菜单
this.getMenus();
// 4. 设置需要默认展开的菜单
this.expandKey = [this.category.parentCid];
});
},
// 通过不同的对话框类型 转发 不同的请求
submitData() {
if (this.dialogType == "add") {
this.addCategory();
}
if (this.dialogType == "edit") {
this.editCategory();
}
},
// 拖拽树级节点
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
this.countNodeLevel(draggingNode);
// 2) 当前正在拖动的节点 + 父节点所在的深度不大于3
let deep = Math.abs(this.maxLevel - draggingNode.level) + 1;
console.log("拖拽树级节点深度", deep);
if (type == "inner") {
// console.log(`this.maxLevel: ${this.maxLevel} ; draggingNode.data.catLevel : ${draggingNode.data.catLevel}; dropNode.level : ${dropNode.level}`);
return deep + dropNode.level <= 3;
} else {
return deep + dropNode.parent.level <= 3;
}
console.log("拖拽树级节点", draggingNode, dropNode, type);
},
// 统计被拖动的当前节点总层数
countNodeLevel(node) {
// 找到所有子节点，求出最大深度
if (node.childNodes != null && node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
if (node.childNodes[i].level > this.maxLevel) {
this.maxLevel = node.childNodes[i].level;
}
this.countNodeLevel(node.childNodes[i]);
}
}
},
// 拖拽树级节点成功后的响应事件
handleDrop(draggingNode, dropNode, dropType, ev) {
console.log(
"拖拽树级节点成功后的响应事件: ",
draggingNode,
dropNode,
dropType
);
let pCid = 0;
let siblings = null;
// 1. 当前节点最新的父节点id
if (dropType == "before" || dropType == "after") {
pCid =
dropNode.parent.data.catId == undefined
? 0
: dropNode.parent.data.catId;
siblings = dropNode.parent.childNodes;
} else {
pCid = dropNode.data.catId;
siblings = dropNode.childNodes;
}
this.pCid.push(pCid);
// 2. 当前节点最新的最新排序
for (let i = 0; i < siblings.length; i++) {
if (siblings[i].data.catId == draggingNode.data.catId) {
// 如果遍历的是当前正在拖拽的结点
let catLevel = draggingNode.level;
// 拖拽子节点的等级 != 正在拖拽节点的等级
if (siblings[i].level != draggingNode.level) {
// 3. 当前节点的最新层级
// 当前节点的层级发生变化
catLevel = siblings[i].level;
// 修改子节点层级
this.updateChildNodeLevel(siblings[i]);
}
this.updateNodes.push({
catId: siblings[i].data.catId,
sort: i,
parentCid: pCid,
catLevel: catLevel,
});
} else {
this.updateNodes.push({
catId: siblings[i].data.catId,
sort: i
});
}
}
console.log("updateNodes", this.updateNodes);
},
// 修改节点树层级
updateChildNodeLevel(node) {
if (node.childNodes.length > 0) {
for (let i = 0; i < node.childNodes.length; i++) {
var cNode = node.childNodes[i].data;
this.updateNodes.push({
catId: cNode.catId,
catLevel: node.childNodes[i].level,
});
this.updateChildNodeLevel(node.childNodes[i]);
}
}
},
batchSave() {
// 4. 发送请求
this.$http({
url: this.$http.adornUrl('/product/category/update/sort'),
method: 'post',
data: this.$http.adornData(this.updateNodes, false)
}).then(({ data }) => {
this.$message({
message: "修改成功",
type: "success",
});
this.getMenus();
this.expandKey = this.pCid;
// 清空数据
this.updateNodes = [];
this.maxLevel = 0;
// this.pCid = 0;
});
},
// 批量删除
batchDelete() {
let catIds = [];
let checkNodes = this.$refs.menuTree.getCheckedNodes();
console.log("被选中的节点为 ", checkNodes);
for (let i = 0; i < checkNodes.length; i++) {
catIds.push(checkNodes[i].catId);
}
this.$confirm(`此操作将永久删除菜单, 是否继续?`, "提示", {
confirmButtonText: "确定",
cancelButtonText: "取消",
type: "warning",
}).then(() => {
this.$http({
url: this.$http.adornUrl('/product/category/delete'),
method: 'post',
data: this.$http.adornData(catIds, false)
}).then(({ data }) => {
this.$message({
message: "批量删除成功",
type: "success",
});
this.getMenus();
});
}).catch(() => {
});
},
},
};
</script>
<style lang="scss" scoped></style>
