vue二次封装ant-design-vue的table，识别columns中的自定义插槽

自定义 `Utable.vue` 组件

<script>
import { mapState } from 'vuex'
import { Table } from 'ant-design-vue'
export default {
  name: 'UTable',
  props: {
    dataSource: {
      type: Array,
      default: () => []
    },
    columns: {
      type: Array,
      default: () => []
    },
    onClearSelected: {
      type: Function,
      default: () => null
    },
    positionBottom:{
      type: Boolean,
      default: false
    }
  },
  computed: {
    ...mapState({
      primaryColor: state => state.app.color,
    }),
  },
  methods: {
    handleTableChange(e){
      this.$emit('change', e);
    },
    getBottomClass(){
      return ['u-table-selected-info', this.positionBottom?'u-table-selected-info-container-position':'u-table-selected-info-container']
    }
  },
  render() {
    const on={
      ...this.$listeners
    }
    const props = {...this.$attrs,...this.$props}

    const slots = Object.keys(this.$slots).map(slot => {
      return (<template slot={slot}>{this.$slots[slot]}</template>)
    })
    // columns={columns} dataSource={dataSource}
    const table=(<Table bordered props={props}  scopedSlots={this.$scopedSlots} on={on}>
      {slots}
    </Table>)

    const { rowSelection } = this.$attrs
    // 我的版本不支持用这种语法
    // const selectRoeKeys = (rowSelection?.selectedRowKeys || []).length
    const selectRoeKeys = (rowSelection ? (rowSelection.selectedRowKeys || []) : []).length

    const that = this;
    const onClearSelected = function(arg){
      return that.$props.onClearSelected ? that.$props.onClearSelected(arguments): null;
    }

    return (<div>
      { table }
      <div class={this.getBottomClass()}>
      <a-icon type="info-circle" theme="filled" style={{ color: this.primaryColor }} /> 已选择
      <a style="font-weight: 600">{selectRoeKeys}</a>项
      <a style="margin-left: 24px" onClick={onClearSelected}>清空</a>
  </div>
    </div>)
  }
}
</script>



<style scoped>
.u-table-selected-info-container{
  line-height:24px;
  margin-top: -40px;
}
.u-table-selected-info-container-position{
  position: absolute;bottom: 40px;height: 24px;line-height:24px;
}
</style>

使用

<template>
  <div>
    <div>

    </div>
    <u-table :columns="columns"
             :loading="loading"
             :data-source="dataSource"
             :ipagination="ipagination"
             :rowSelection="{ selectedRowKeys: selectedRowKeys, onChange: onSelectChange }"
             :onClearSelected="onClearSelected"
             @change="handleChange">
      <span slot="gender" slot-scope="text, record">
        <i>{{text=='1' ? '男':'女'}}</i>
      </span>
      <template slot="action" slot-scope="text, record">
          <a >编辑</a>
          <a-divider type="vertical" />
          <a >详情</a>
        </template>
    </u-table>
  </div>
</template>

<script>

  import UTable from '@/components/UTable/UTable'

  export default {
    name: "Alteration",
    components: {
      UTable
    },
    data() {
      return {
        columns: [
          {
            title: '#',
            dataIndex: '',
            key: 'rowIndex',
            width: 60,
            align: 'center',
            customRender: function (t, r, index) {
              return parseInt(index) + 1;
            }
          },
          {
            title: '姓名',
            dataIndex: 'name',
            width: 120,
          },
          {
            title: '性别',
            dataIndex: 'gender',
            width: 120,
            scopedSlots: { customRender: 'gender' },
          },
          {
            title: '年龄',
            dataIndex: 'age',
            width: 120,
          },
          {
            title: '操作',
            dataIndex: 'action',
            align: 'center',
            width: 120,
            scopedSlots: {
              customRender: 'action'
            }
          }
        ],
        loading: false,
        dataSource: [
          {name: "一成", gender: "1", age: 12},
          {name: "二强", gender: "1", age: 6},
          {name: "三丽", gender: "2", age: 6},
          {name: "四美", gender: "2", age: 6},
          {name: "七七", gender: "1", age: 6},
        ],
        /* 分页参数 */
        ipagination: {
          current: 1,
          pageSize: 5,
          pageSizeOptions: ['5', '10', '50'],
          showTotal: (total, range) => {
            return range[0] + '-' + range[1] + ' 共' + total + '条'
          },
          showQuickJumper: true,
          showSizeChanger: true,
          total: 0
        },
        selectedRowKeys: [],
        selectionRows: []
      }
    },
    mounted() {

    },
    methods: {
      onSelectChange(selectedRowKeys, selectionRows){
        this.selectedRowKeys = selectedRowKeys;
        this.selectionRows = selectionRows;
      },
      onClearSelected(){
// 目前还无法清空，但是执行了这个函数。等我找找原因
        console.log("清空函数",this.selectedRowKeys)
        this.selectedRowKeys.length = 0;
        this.selectionRows.length = 0;
      },
      handleChange(){}
    }
  }
</script>

<style lang="less" scoped>
  .steps {
    max-width: 750px;
    margin: 16px auto;
  }
</style>

效果图

操作列、性别列是自定义的slot