【项目】给资产查询页面添加3个小功能P和D

你的名字 2023-10-03 20:11 10阅读 0赞

### 前言 ###

在产线实习期间我们都是用PDCA高效思维法来进行任务书编写，受益颇多，因此开始尝试用此方法来记笔记。

### Plan ###

往资产查询页面添加如下功能：

1.  按状态搜索
2.  导出数据
3.  批量删除

### Do ###

##### 1. 按状态搜索 #####

第一步：在搜索资产功能中添加资产状态组件

<el-form-item label="资产状态" prop="status">
            <el-select v-model="queryParams.status" placeholder="请选择资产状态" clearable size="small">
              <el-option
                v-for="dict in statusOptions"
                :key="dict.dictValue"
                :label="dict.dictLabel"
                :value="dict.dictValue"
              />
            </el-select>
          </el-form-item>

第二步：在查询参数中添加status

queryParams: {
        
            title: null,
            type: null,
            pageNum: 1,
            pageSize: 10,
            status: null,
          },

效果如下：  
![在这里插入图片描述][d8a5cb3a34fe4a548e43c4cf763f5984.png]

##### 2. 导出数据 #####

第一步：在新增资产中添加导出组件

<el-col :span="1.5">
            <el-button
              type="warning"
              icon="el-icon-download"
              size="mini"
              @click="handleExport"
              v-hasPermi="['asset:category:export']"
            >导出</el-button>
          </el-col>

第二步：js中导入exportCategory

import {
         listCategory,getCategory, delCategory, addCategory, updateCategory,exportCategory} from "@/api/asset/category";

第三步：添加导出按钮操作方法

/** 导出按钮操作 */
        handleExport() {
        
          const queryParams = this.queryParams;
          this.$confirm('是否确认导出所有资产数据项?', "警告", {
        
              confirmButtonText: "确定",
              cancelButtonText: "取消",
              type: "warning"
            }).then(function() {
        
              return exportCategory(queryParams);
            }).then(response => {
        
              this.download(response.msg);
            }).catch(function() {
        });
        }

效果如下：  
![在这里插入图片描述][1af5525ae1fc4c2eb0e58a34284494d4.png]

##### 3. 批量删除 #####

第一步：在新增资产中添加删除组件  
**注意:disabled只有是multiple时，表示开启多选模式，才可以使用批量删除按钮**

<el-col :span="1.5">
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              :disabled="multiple"
              @click="handleDelete"
              v-hasPermi="['asset:category:remove']"
            >删除</el-button>
          </el-col>

![在这里插入图片描述][8744f28895f446dd870266e5c43422a6.png]  
第二步：在资产查询中添加好多选框并绑定好方法  
![在这里插入图片描述][2bcb21a8d3e14e8fa221e583c0d51c90.png]  
代码如下：

<el-table
          v-loading="loading"
          :data="categoryList"
          row-key="id"
          default-expand-all
          :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
          @selection-change="handleSelectionChange"
        >
          <el-table-column type="selection" width="55" align="center" />
          <el-table-column label="分类名称" align="center" prop="title" />
          <el-table-column label="分类类别" align="center" prop="type" :formatter="typeFormat" />
          <el-table-column label="排序" align="center" prop="listSort" />
          <el-table-column label="状态" align="center" prop="status" :formatter="statusFormat" />
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
            <template slot-scope="scope">
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
                v-hasPermi="['asset:category:edit']"
              >修改</el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
                v-hasPermi="['asset:category:remove']"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>

效果如下：  
![在这里插入图片描述][6e0b23c9e2e14a56b569f68e560b8d19.png]

第三步：在data() return中添加好如下数据

// 选中数组
          ids: [],
          // 非单个禁用
          single: true,
          // 非多个禁用
          multiple: true,

第四步：添加多选框选中数据方法

// 多选框选中数据
        handleSelectionChange(selection) {
        
          this.ids = selection.map(item => item.id)
          this.single = selection.length!=1
          this.multiple = !selection.length
        },

注意：下图框中的数据必须和你从后端传给前端的数据编码号一样  
![在这里插入图片描述][b6d6675716ec4e0cb22a358b8df10cfe.png]  
![在这里插入图片描述][e55f43bfde0d4d7081097bbd6e463a4b.png]  
第五步：之前的文章中我们已经实现了单个删除操作，现需修改删除按钮操作 handleDelete（）方法  
原来的代码：

/** 删除按钮操作 */
      handleDelete(row) {
        
        this.$confirm('是否确认删除资产分类编号为"' + row.id + '"的数据项?', "警告", {
        
            confirmButtonText: "确定",
            cancelButtonText: "取消",
            type: "warning"
          }).then(function() {
        
            return delCategory(row.id);
          }).then(() => {
        
            this.getList();
            this.msgSuccess("删除成功");
          })
      },

修改后的代码：

/** 删除按钮操作 */
      handleDelete(row) {
        
        const ids = row.id || this.ids;
        this.$confirm('是否确认删除资产分类编号为"' + ids+ '"的数据项?', "警告", {
        
            confirmButtonText: "确定",
            cancelButtonText: "取消",
            type: "warning"
          }).then(function() {
        
            return delCategory(ids);
          }).then(() => {
        
            this.getList();
            this.msgSuccess("删除成功");
          })
      },

效果如下：  
![在这里插入图片描述][7e2b021d74dd44aeafcb8c85076c917c.png]  
![在这里插入图片描述][7bca9595006642b8afebe0ebd4f3daa5.png]

**打算把C和A的部分放到下一篇，此篇只附上D的代码，不然篇幅太长！！！**

资产查询页面总代码如下：

<template>
      <div class="app-container">
    
        
        <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
          <el-form-item label="分类名称" prop="title">
            <el-input
              v-model="queryParams.title"
              placeholder="请输入分类名称"
              clearable
              size="small"
              @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <el-form-item label="分类类别" prop="type">
            <el-select v-model="queryParams.type" placeholder="请选择分类类别" clearable size="small">
              <el-option
                v-for="dict in typeOptions"
                :key="dict.dictValue"
                :label="dict.dictLabel"
                :value="dict.dictValue"
              />
            </el-select>
          </el-form-item>
    
          <el-form-item label="资产状态" prop="status">
            <el-select v-model="queryParams.status" placeholder="请选择资产状态" clearable size="small">
              <el-option
                v-for="dict in statusOptions"
                :key="dict.dictValue"
                :label="dict.dictLabel"
                :value="dict.dictValue"
              />
            </el-select>
          </el-form-item>
    
    
          <el-form-item>
    	    <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>
    
        
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
              type="primary"
              plain
              icon="el-icon-plus"
              size="mini"
              @click="handleAdd"
              v-hasPermi="['asset:category:add']"
            >新增</el-button>
          </el-col>
          
          <el-col :span="1.5">
            <el-button
              type="warning"
              icon="el-icon-download"
              size="mini"
              @click="handleExport"
              v-hasPermi="['asset:category:export']"
            >导出</el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              :disabled="multiple"
              @click="handleDelete"
              v-hasPermi="['asset:category:remove']"
            >删除</el-button>
          </el-col>
        </el-row>
    
        
        <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
          <el-form ref="form" :model="form" :rules="rules" label-width="80px">
            <el-form-item label="上级" prop="pid">
              <treeselect v-model="form.pid" :options="categoryOptions" :normalizer="normalizer" placeholder="请选择上级" />
            </el-form-item>
            <el-form-item label="分类名称" prop="title">
              <el-input v-model="form.title" placeholder="请输入分类名称" />
            </el-form-item>
            <el-form-item label="分类类别" prop="type">
              <el-select v-model="form.type" placeholder="请选择分类类别">
                <el-option
                  v-for="dict in typeOptions"
                  :key="dict.dictValue"
                  :label="dict.dictLabel"
                  :value="dict.dictValue"
                ></el-option>
              </el-select>
            </el-form-item>
            <el-form-item label="排序" prop="listSort">
              <el-input v-model="form.listSort" placeholder="请输入排序" />
            </el-form-item>
            <el-form-item label="状态">
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in statusOptions"
                  :key="dict.dictValue"
                  :label="dict.dictValue"
                >{
       {dict.dictLabel}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-form>
          <div slot="footer" class="dialog-footer">
            <el-button type="primary" @click="submitForm">确 定</el-button>
            <el-button @click="cancel">取 消</el-button>
          </div>
        </el-dialog>
    
        
        <el-table
          v-loading="loading"
          :data="categoryList"
          row-key="id"
          default-expand-all
          :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
          @selection-change="handleSelectionChange"
        >
          <el-table-column type="selection" width="55" align="center" />
          <el-table-column label="分类名称" align="center" prop="title" />
          <el-table-column label="分类类别" align="center" prop="type" :formatter="typeFormat" />
          <el-table-column label="排序" align="center" prop="listSort" />
          <el-table-column label="状态" align="center" prop="status" :formatter="statusFormat" />
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
            <template slot-scope="scope">
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
                v-hasPermi="['asset:category:edit']"
              >修改</el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
                v-hasPermi="['asset:category:remove']"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>
    
       
        <pagination
          v-show="total>0"
          :total="total"
          :page.sync="queryParams.pageNum"
          :limit.sync="queryParams.pageSize"
          @pagination="getList"
        />
    
      </div>
    </template>
      
    <script>
    import {
           listCategory,getCategory, delCategory, addCategory, updateCategory,exportCategory,} from "@/api/asset/category";
    import Treeselect from "@riophae/vue-treeselect";
    import "@riophae/vue-treeselect/dist/vue-treeselect.css";
    
    export default {
          
      name: "demo",
      components: {
          
        Treeselect
      },
      data() {
          
        return {
          
          // 遮罩层
          loading: true,
          // 资产分类表格数据
          categoryList: [],
          // 分类类别字典
          typeOptions: [],
          // 状态字典
          statusOptions: [],
          // 弹出层标题
          title: "",
          // 资产分类树选项
          categoryOptions: [],
          // 是否显示弹出层
          open: false,
          // 表单参数
          form: {
          },
          // 表单校验
          rules: {
          
            title: [
              {
           required: true, message: "分类名称不能为空", trigger: "blur" }
            ],
            type: [
              {
           required: true, message: "分类类别不能为空", trigger: "blur" }
            ],
            status: [
              {
           required: true, message: "状态不能为空", trigger: "blur" }
            ]
          },
          // 显示搜索条件
          showSearch: true,
          // 查询参数
          queryParams: {
          
            title: null,
            type: null,
            pageNum: 1,
            pageSize: 10,
            status: null,
          },
          // 总条数
          total: 0,
          // 选中数组
          ids: [],
          // 非单个禁用
          single: true,
          // 非多个禁用
          multiple: true,
        };
      },
      created() {
          
        this.getList();
        this.getDicts("cate_type").then((response) => {
          
          this.typeOptions = response.data;
        });
        this.getDicts("ext_status").then((response) => {
          
          this.statusOptions = response.data;
        });
      },
      methods: {
          
        /** 查询资产分类列表 */
        getList() {
          
          this.loading = true;
          listCategory(this.queryParams).then((response) => {
          
            this.categoryList = this.handleTree(response.rows, "id", "pid");
            // this.categoryList = response.rows;
            this.total = response.total;
            this.loading = false;
            
          });
        },
        // 分类类别字典翻译
        typeFormat(row, column) {
          
          return this.selectDictLabel(this.typeOptions, row.type);
        },
        // 状态字典翻译
        statusFormat(row, column) {
          
          return this.selectDictLabel(this.statusOptions, row.status);
        },
        /** 查询部门下拉树结构 */
        getTreeselect() {
          
          listCategory().then(response => {
          
            this.categoryOptions = [];
            const data = {
           id: 0, title: '顶级节点', children: [] };
            data.children = this.handleTree(response.rows, "id", "pid");
            this.categoryOptions.push(data);
          });
        },
        /** 转换资产分类数据结构 */
        normalizer(node) {
          
          if (node.children && !node.children.length) {
          
            delete node.children;
          }
          return {
          
            id: node.id,
            label: node.title,
            children: node.children
          };
        },
        // 取消按钮
        cancel() {
          
          this.open = false;
          this.reset();
        },
        // 表单重置
        reset() {
          
          this.form = {
          
            id: null,
            title: null,
            pid: 0,
            type: '1',
            listSort: null,
            status: "1"
          };
          this.resetForm("form");
        },
        /** 新增按钮操作 */
        handleAdd() {
          
          this.reset();
          this.getTreeselect();
          this.open = true;
          this.title = "添加资产分类";
        },
        /** 确认按钮 */
        submitForm() {
          
        this.$refs["form"].validate(valid => {
          
          if (valid) {
          
            if (this.form.id != null) {
          
              updateCategory(this.form).then(response => {
          
                this.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
          
              addCategory(this.form).then(response => {
          
                this.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
          
        this.reset();
        this.getTreeselect();
          if (row != null) {
          
            this.form.pid = row.id;
          }
          getCategory(row.id).then(response => {
          
            this.form = response.data;
            this.open = true;
            this.title = "修改资产分类";
          });
        },
      /** 删除按钮操作 */
      handleDelete(row) {
          
        const ids = row.id || this.ids;
        this.$confirm('是否确认删除资产分类编号为"' + ids+ '"的数据项?', "警告", {
          
            confirmButtonText: "确定",
            cancelButtonText: "取消",
            type: "warning"
          }).then(function() {
          
            return delCategory(ids);
          }).then(() => {
          
            this.getList();
            this.msgSuccess("删除成功");
          })
      },
       /** 搜索按钮操作 */
       handleQuery() {
           
          this.getList();
        },
        /** 重置按钮操作 */
        resetQuery() {
          
          this.resetForm("queryForm");
          this.handleQuery();
        },
        /** 导出按钮操作 */
        handleExport() {
          
          const queryParams = this.queryParams;
          this.$confirm('是否确认导出所有资产数据项?', "警告", {
          
              confirmButtonText: "确定",
              cancelButtonText: "取消",
              type: "warning"
            }).then(function() {
          
              return exportCategory(queryParams);
            }).then(response => {
          
              this.download(response.msg);
            }).catch(function() {
          });
        },
        // 多选框选中数据
        handleSelectionChange(selection) {
          
          this.ids = selection.map(item => item.id)
          this.single = selection.length!=1
          this.multiple = !selection.length
        },
      }
      
    };
    </script>

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