vue3.2/Vite/Ts52: 属性值编辑模式和查看模式的切换

└─src
    └─views
        └─product
            └─attr
                └─index.vue

<template>
  <div>
    <Category :scene="scene"/>
    <el-card>
      <div v-if="scene === 0">
        <el-button
          type="primary"
          size="default"
          icon="Plus"
          :disabled="categoryStore.c3Id"
          @click="addAttr"
          >添加属性</el-button
        >
        <el-table border>
          <el-table-column
            label="序号"
            type="index"
            align="center"
            width="80px"
          ></el-table-column>
          <el-table-column
            label="属性名称"
            width="120px"
            prop="attrName"
          ></el-table-column>
          <el-table-column label="属性值名称">
            <template #="{row}">
              <el-tag v-for="(item, index) in row.attrValueList" :key="item.id">{{ item.valueName }}</el-tage>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="120px">
            <template #="{row}">
              <el-button type="primary" size="small" icon="Edit" @click="updateAttr"></el-button>
              <el-button type="primary" size="small" icon="Delete"></el-button>
            </template>
          </el-table-column>
        </el-table>
      </div>
      <!-- 切换 -->
      <div v-if="scene === 1">
        <el-form :inline="true">
          <el-form-item label="属性名称">
            <el-input placeholder="请输入属性名称" v-model="attrParams.attrName"></el-input>
          </el-form-item>
        </el-form>
        <el-button type="primary" size="default" icon="Plus" :disabled="attrParams.attrName ? false : true" @click="addAttrValue">添加属性值</el-button>
        <el-button type="primary" size="default" @click="cancel">取消</el-button>
        <el-table broder :data="attrParams.attrValueList">
          <el-table-column width="80px" type="index" align="center" label="序号"></el-table-column>
          <el-table-column label="属性值名称">
            <template #="{ row, $index }">
                <el-input :ref="(vc: any) => inputArr[$index] = vc" v-if="row.flag" @blur="toLook(row, $index)" placeholder="请你输入属性值名称" v-model="row.valueName"></el-input>
                <!-- 切换 -->
                <div v-else @blur="toEdit(row, $index)">{{ row.valueName }}</div>
            </template>
          </el-table-column>
          <el-table-column label="属性值操作">
            <template #="{ row, $index }">
              <el-button type="primary" size="small" icon="Delete" @click="attrParams.attrValueList.splice($index, 1)"></el-button>
            </template>
          </el-table-column>
        </el-table>
        <el-button type="primary" size="default" @click="save" :disabled="attrParams.attrValueList.length > 0 ? false : true">保存</el-button>
        <el-button type="primary" size="default" @click="cancel">取消</el-button>
      </div>
    </el-card>
  </div>
</template>
<script setup lang="ts">
import { watch, ref, reactive, nextTick } from "vue";

import type { AttrResponseData, Attr } from "@/api/product/attr";

import useCategoryStore from "@/store/modules/category";

let categoryStore = useCategoryStore();

import { reqAttr, reqAddOrUpdateAttr } from "@/api/product/attr";

let attrArr = ref<Attr[]>([]);

let scene = ref<number>(0);

let attrParams = reactive<Attr>({
  attrName: '',
  attrValueList: [],
  categoryId: '',
  categoryLevel: 3
});

// 存储 el-input
let inputArr = ref<any>([]);

const getAttr = () => {
  const { c1Id, c2Id, c3Id } = categoryStore;
  const result: AttrResponseData = await reqAttr(c1Id, c2Id, c3Id);
  if (result.code === 200) {
    attrArr.value = result.data;
  }
};

// 监听三级分类数据
watch(
  () => categoryStore.c3Id,
  () => {
    attrArr.value = [];
    if (!categoryStore.c3Id) return;
    getAttr();
  }
);

const addAttr = () => {
  // 清空数据
  Object.assign(attrParams, {
    attrName: '',
    attrValueList: [],
    categoryId: categoryStore.c3Id,
    categoryLevel: 3
  })
  scene.value = 1;
}

const updateAttr = () => {
  scene.value = 1;
}

const cancel = () => {
  scene.value = 0;
}

const addAttrValue = () => {
  attrParams.attrValueList.push({
    valueName: '',
    flag: true
  });

  nextTick(() => {
    inputArr.value[attrParams.attrValueList.length - 1].focus();
  })
}

const save = () => {
  let result: any = await reqAddOrUpdateAttr(attrParams);
  if (result.code === 200) {
    scene.value = 0;
    ElMessage({
      type: 'success',
      message: attrParams.id ? '修改成功' : '添加成功'
    })
    getArrt(); // 重新请求属性值列表
  } else {
    ElMessage({
      type: 'error',
      message: attrParams.id ? '修改失败' : '添加失败'
    })
  }
}

const toLook = (row: AttrValue, $index: number) => {
  if (row.valueName.trim() === '') {
    attrParams.attrValueList.splice($index, 1)
    ElMessage({
      type: 'error',
      message: '属性值不能为空'
    })
    return;
  }
  let repeat = attrParams.attrValueList.find(item => {
    if (item !== row) {
      return item.valueName === row.valueName
    }
  })
  if (repeat) {
    attrParams.attrValueList.splice($index, 1)
    ElMessage({
      type: 'error',
      message: '属性值不能重复'
    })
    return;
  }
  row.flag = false;
}

const toEdit = (row: AttrValue, $index: number) => {
  row.flag = true;
  nextTick(() => {
    inputArr.value[$index].focus();
  })
}
</script>