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+<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 slot="message">
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+ 已选择 <a style="font-weight: 600">{{ selectedRows.length }}</a>
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+ <template v-for="(item, index) in needTotalList" v-if="item.needTotal">
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+ {{ item.title }} 总计
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+ <a :key="index" style="font-weight: 600">
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+ {{ item.customRender ? item.customRender(item.total) : item.total }}
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+ </a>
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+ </template>
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+ <a style="margin-left: 24px" @click="onClearSelected">清空</a>
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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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+ :size="size"
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+ :bordered="bordered"
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+ :loading="loading"
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+ :columns="columns"
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+ :dataSource="current"
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+ :rowKey="rowKey"
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+ :pagination="pagination"
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+ :rowSelection="{ selectedRowKeys: selectedRowKeys, onChange: updateSelect }"
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+ >
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+ </a-table>
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+ </div>
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+</template>
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+
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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', 'data', 'rowKey', 'pagination', 'selectedRows'],
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+ props: {
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+
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+ /**
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+ * 数据加载函数,返回值必须是 Promise
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+ * 默认情况下必须传递 data 参数;
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+ * 如果使用本地数据渲染表格,业务代码中将获取本地数据包装为 Promise 即可。
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+ *
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+ * currentData 用于向外暴露表格当前渲染的数据,
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+ * 业务开发中也可以直接修改 currentData,从而重新渲染表格(仅推荐用于客户端排序、数据过滤等场景)
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+ */
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+ data: {
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+ type: Function,
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+ required: true
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+ },
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+ dataSource: {
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+ type: Array,
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+ default () {
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+ return []
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+ }
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+ },
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+ columns: {
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+ type: Array,
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+ required: true
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+ },
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+/* pagination: {
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+ type: Object,
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+ default () {
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+ return {}
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+ }
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+ },*/
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+ pageSize: {
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+ type: Number,
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+ default: 10
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+ },
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+ pageNum: {
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+ type: Number,
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+ default: 1
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+ },
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+ pageSizeOptions: {
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+ type: Array,
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+ default () {
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+ return ['10', '20', '30', '40', '50']
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+ }
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+ },
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+ responseParamsName: {
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+ type: Object,
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+ default () {
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+ return {}
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+ }
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+ },
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+ bordered: {
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+ type: Boolean,
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+ default: false
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+ },
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+ /**
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+ * 表格大小风格,default, middle, small
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+ */
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+ size: {
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+ type: String,
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+ default: 'default'
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+ },
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+ rowKey: {
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+ type: String
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+ },
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+ selectedRows: {
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+ type: Array
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+ }
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+ },
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+ data () {
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+ return {
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+ needTotalList: [],
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+ selectedRowKeys: [],
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+
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+ loading: true,
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+
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+ total: 0,
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+ pageNumber: this.pageNum,
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+ currentPageSize: this.pageSize,
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+ defaultCurrent: 1,
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+ sortParams: {},
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+
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+ current: [],
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+ pagination: {},
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+ paramsName: {},
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+ }
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+ },
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+ created () {
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+ //数据请求参数配置
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+ this.paramsName = Object.assign(
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+ {},
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+ {
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+ pageNumber: "pageNo",
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+ pageSize: "pageSize",
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+ total: "totalCount",
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+ results: "data",
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+ sortColumns: "sortColumns"
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+ },
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+ this.responseParamsName
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+ );
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+
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+ this.needTotalList = this.initTotalList(this.columns)
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+
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+ // load data
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+ this.loadData( { pageNum: this.pageNumber } )
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+ },
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+ methods: {
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+ updateSelect (selectedRowKeys, selectedRows) {
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+ this.selectedRowKeys = selectedRowKeys
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+ let list = this.needTotalList
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+ this.needTotalList = list.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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+ this.$emit('change', 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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+
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+ loadData (params) {
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+ let that = this
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+ that.loading = true
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+ params = Object.assign({}, params)
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+ const remoteParams = Object.assign({}, that.sortParams)
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+ remoteParams[that.paramsName.pageNumber] = params.pageNum || that.pageNumber
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+ remoteParams[that.paramsName.pageSize] = params.pageSize || that.currentPageSize
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+
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+ if (params.pageNum) {
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+ that.pageNumber = params.pageNum
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+ }
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+ if (params.pageSize) {
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+ that.currentPageSize = params.pageSize
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+ }
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+
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+ let dataPromise = that.data(remoteParams)
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+
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+ dataPromise.then( response => {
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+ if (!response) {
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+ that.loading = false
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+ return
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+ }
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+ let results = response[that.paramsName.results]
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+ results = (results instanceof Array && results) || []
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+
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+ that.current = results
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+
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+ that.$emit("update:currentData", that.current.slice())
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+ that.$emit("dataloaded", that.current.slice())
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+
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+ that.total = response[that.paramsName.total] * 1
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+ that.pagination = that.pager()
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+ that.loading = false
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+ }, () => {
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+ // error callback
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+ that.loading = false
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+ })
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+ },
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+ // eslint-disable-next-line
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+ onPagerChange (page, pageSize) {
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+ this.pageNumber = page
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+ this.loadData({ pageNum: page })
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+ },
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+ onPagerSizeChange (current, size) {
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+ this.currentPageSize = size
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+ /*
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+ if (current === this.pageNumber) this.loadData()
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+ console.log('page-size-change', current, size)
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+ */
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+ },
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+ onClearSelected () {
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+ this.selectedRowKeys = []
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+ this.updateSelect([], [])
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+ },
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+ pager () {
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+ return {
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+ total: this.total,
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+ showTotal: total => `共有 ${total} 条`,
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+ showSizeChanger: true,
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+ pageSizeOptions: this.pageSizeOptions,
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+ pageSize: this.pageSize,
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+ defaultCurrent: this.defaultCurrent,
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+ onChange: this.onPagerChange,
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+ onShowSizeChange: this.onPagerSizeChange
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+ }
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+ }
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+ },
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+ watch: {
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+ 'selectedRows': function (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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+ }
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+</script>
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+
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+<style scoped>
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+ .alert {
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+ margin-bottom: 16px;
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+ }
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+</style>
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