<template>
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<div class="standard-table">
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<div class="alert">
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<a-alert type="info" :show-icon="true">
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<div class="message" slot="message">
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已选择 <a>{{selectedRows.length}}</a> 项 <a class="clear" @click="onClear">清空</a>
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<template v-for="(item, index) in needTotalList" >
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<div v-if="item.needTotal" :key="index">
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{{item.title}}总计
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<a>{{item.customRender ? item.customRender(item.total) : item.total}}</a>
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</div>
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</template>
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</div>
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</a-alert>
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</div>
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<a-table
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:bordered="bordered"
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:loading="loading"
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:columns="columns"
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:dataSource="dataSource"
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:rowKey="rowKey"
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:pagination="pagination"
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@change="onChange"
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:rowSelection="{selectedRowKeys: selectedRowKeys, onChange: updateSelect}"
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>
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<template slot-scope="text, record, index" :slot="slot" v-for="slot in scopedSlots">
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<slot :name="slot" v-bind="{text, record, index}"></slot>
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</template>
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<template :slot="slot" v-for="slot in slots">
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<slot :name="slot"></slot>
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</template>
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</a-table>
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</div>
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</template>
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<script>
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export default {
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name: 'StandardTable',
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props: ['bordered', 'loading', 'columns', 'dataSource', 'rowKey', 'pagination', 'selectedRows'],
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data () {
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return {
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needTotalList: [],
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scopedSlots: [],
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slots: []
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}
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},
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methods: {
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updateSelect (selectedRowKeys, selectedRows) {
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this.$emit('update:selectedRows', selectedRows)
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this.$emit('selectedRowChange', selectedRowKeys, selectedRows)
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},
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initTotalList (columns) {
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const totalList = []
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columns.forEach(column => {
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if (column.needTotal) {
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totalList.push({...column, total: 0})
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}
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})
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return totalList
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},
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getScopedSlots(columns) {
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let scopedSlots = columns.filter(item => item.scopedSlots).map(item => item.scopedSlots)
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scopedSlots = scopedSlots.flatMap(item => {
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return Object.keys(item).map(key => item[key])
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})
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return scopedSlots
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},
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getSlots(columns) {
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let slots = columns.filter(item => item.slots).map(item => item.slots)
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slots = slots.flatMap(item => {
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return Object.keys(item).map(key => item[key])
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})
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return slots
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},
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onClear() {
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this.updateSelect([], [])
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this.$emit('clear')
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},
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onChange(pagination, filters, sorter, {currentDataSource}) {
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this.$emit('change', pagination, filters, sorter, {currentDataSource})
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}
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},
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created () {
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this.scopedSlots = this.getScopedSlots(this.columns)
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this.slots = this.getSlots(this.columns)
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this.needTotalList = this.initTotalList(this.columns)
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},
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watch: {
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selectedRows (selectedRows) {
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this.needTotalList = this.needTotalList.map(item => {
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return {
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...item,
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total: selectedRows.reduce((sum, val) => {
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return sum + val[item.dataIndex]
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}, 0)
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}
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})
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}
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},
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computed: {
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selectedRowKeys() {
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return this.selectedRows.map(row => row.key)
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}
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}
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}
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</script>
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<style scoped lang="less">
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.standard-table{
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.alert{
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margin-bottom: 16px;
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.message{
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a{
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font-weight: 600;
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}
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}
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.clear{
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float: right;
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}
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}
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}
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</style>
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