写在最前面
这里只是提供一种想法并提供一些快速实现，实际这些技巧可以用在很多地方，如：动态表单
实现方式简述
- 通过json定义要显示的列
- 通过slot实现自定义列
- 通过
require.context实现组件的自动注册，并通过<components is="xxx"></components>, 调用动态注册的组件
优点：
- 支持通过slot自定义扩展
- 支持编写vue文件扩展列的显示方式
- 支持通过json来控制列顺序和哪些列需要显示哪些不需要
- 能避免封装的table组件越来越复杂
表格实现：
<template>
<el-table :data="tableData" style="width: 100%" height="100%">
<el-table-column
v-for="column in columnList"
:key="column.prop"
v-bind="column.columnAttrs"
>
<template slot-scope="scope">
<slot
v-if="column.type === 'slot'"
:name="column.slotName"
:row="scope.row"
></slot>
<components
v-else
:row="scope.row"
:prop="column.prop"
:config="column"
:is="`column-${column.type}`"
></components>
</template>
</el-table-column>
</el-table>
</template>
<script>
const modules = {};
// 将当前目录以及子目录中的index.vue自动注册为组件（require.context是webpack提供的，如果是vite要用vite的方式）
const files = require.context("./", true, /index.vue$/);
files.keys().forEach((item) => {
const name = item.split("/")[1];
modules[`column-${name}`] = files(item).default;
});
console.log(modules, "modules");
export default {
name: "CustomTable",
components: {
// 组件动态注册
...modules,
},
props: {
tableData: {
type: Array,
default: () => [],
},
columnList: {
type: Array,
default: () => [],
},
},
};
</script>
<style scoped></style>
func组件
<template>
<span>{{ config.call(row, config) }}</span>
</template>
<script>
export default {
name: "ColumnFunc",
props: {
config: {
type: Object,
},
row: {
type: Object,
},
},
};
</script>
<style scoped></style>
text组件：
<template>
<span>{{ row[config.prop] }}</span>
</template>
<script>
export default {
name: "ColumnText",
props: {
config: {
type: Object,
},
row: {
type: Object,
},
},
};
</script>
<style scoped></style>
调用示例
<template>
<CustomTable :column-list="columnList" :table-data="tableData">
<template #operate="{ row }">
<el-button size="small">删除</el-button>
<el-button size="small" type="primary" @click="onEdit(row)">
编辑
</el-button>
</template>
</CustomTable>
</template>
<script>
import CustomTable from "@/components/my-table/CustomTable";
export default {
name: "CustomTableDemo",
components: {
CustomTable,
},
data() {
return {
columnList: [
{
type: "text",
prop: "name",
columnAttrs: {
label: "姓名",
width: "180",
},
},
{
type: "text",
prop: "date",
columnAttrs: {
label: "日期",
width: "180",
},
},
{
type: "func",
prop: "sex",
columnAttrs: {
label: "性别",
},
call: (row) => {
switch (row.sex) {
case 1: {
return "男";
}
case 2: {
return "女";
}
default: {
return "未知";
}
}
},
},
{
type: "slot",
slotName: "operate",
prop: "operate",
columnAttrs: {
label: "操作",
},
},
],
tableData: [
{
date: "2016-05-02",
name: "王小虎",
address: "上海市普陀区金沙江路 1518 弄",
sex: 1,
},
{
date: "2016-05-04",
name: "王小虎",
address: "上海市普陀区金沙江路 1517 弄",
sex: 2,
},
{
date: "2016-05-01",
name: "王小虎",
address: "上海市普陀区金沙江路 1519 弄",
sex: 3,
},
],
};
},
methods: {
onEdit(row) {
console.log(row);
},
},
};
</script>
<style scoped></style>
效果
