superset PivotTable 源码

superset PivotTable 代码

文件路径：/superset-frontend/plugins/legacy-plugin-chart-pivot-table/src/PivotTable.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/* eslint-disable react/sort-prop-types */
import dt from 'datatables.net-bs';
import PropTypes from 'prop-types';
import {
  getTimeFormatter,
  getTimeFormatterForGranularity,
  smartDateFormatter,
} from '@superset-ui/core';
import { formatCellValue, formatDateCellValue } from './utils/formatCells';
import fixTableHeight from './utils/fixTableHeight';
import 'datatables.net-bs/css/dataTables.bootstrap.css';

if (window.$) {
  dt(window, window.$);
}
const $ = window.$ || dt.$;

const propTypes = {
  data: PropTypes.shape({
    // TODO: replace this with raw data in SIP-6
    html: PropTypes.string,
    columns: PropTypes.arrayOf(
      PropTypes.oneOfType([
        PropTypes.string,
        PropTypes.arrayOf(PropTypes.string),
      ]),
    ),
  }),
  height: PropTypes.number,
  columnFormats: PropTypes.objectOf(PropTypes.string),
  numberFormat: PropTypes.string,
  numGroups: PropTypes.number,
  verboseMap: PropTypes.objectOf(PropTypes.string),
};

const hasOnlyTextChild = node =>
  node.childNodes.length === 1 &&
  node.childNodes[0].nodeType === Node.TEXT_NODE;

function PivotTable(element, props) {
  const {
    columnFormats,
    data,
    dateFormat,
    granularity,
    height,
    numberFormat,
    numGroups,
    verboseMap,
  } = props;

  const { html, columns } = data;
  const container = element;
  const $container = $(element);
  let dateFormatter;

  if (dateFormat === smartDateFormatter.id && granularity) {
    dateFormatter = getTimeFormatterForGranularity(granularity);
  } else if (dateFormat) {
    dateFormatter = getTimeFormatter(dateFormat);
  } else {
    dateFormatter = String;
  }

  // queryData data is a string of html with a single table element
  container.innerHTML = html;

  const cols = Array.isArray(columns[0]) ? columns.map(col => col[0]) : columns;
  const dateRegex = /^__timestamp:(-?\d*\.?\d*)$/;

  $container.find('th').each(function formatTh() {
    if (hasOnlyTextChild(this)) {
      const cellValue = formatDateCellValue(
        $(this).text(),
        verboseMap,
        dateRegex,
        dateFormatter,
      );
      $(this).text(cellValue);
    }
  });

  $container.find('tbody tr').each(function eachRow() {
    $(this)
      .find('td')
      .each(function eachTd(index) {
        if (hasOnlyTextChild(this)) {
          const tdText = $(this).text();
          const { textContent, sortAttributeValue } = formatCellValue(
            index,
            cols,
            tdText,
            columnFormats,
            numberFormat,
            dateRegex,
            dateFormatter,
          );
          $(this).text(textContent);
          $(this).attr('data-sort', sortAttributeValue);
        }
      });
  });

  $container.find('table').each(function fullWidth() {
    this.style = 'width: 100%';
  });

  if (numGroups === 1) {
    // When there is only 1 group by column,
    // we use the DataTable plugin to make the header fixed.
    // The plugin takes care of the scrolling so we don't need
    // overflow: 'auto' on the table.
    container.style.overflow = 'hidden';
    const table = $container.find('table').DataTable({
      paging: false,
      searching: false,
      bInfo: false,
      scrollY: `${height}px`,
      scrollCollapse: true,
      scrollX: true,
    });
    table.column('-1').order('desc').draw();
    fixTableHeight($container.find('.dataTables_wrapper'), height);
  } else {
    // When there is more than 1 group by column we just render the table, without using
    // the DataTable plugin, so we need to handle the scrolling ourselves.
    // In this case the header is not fixed.
    container.style.overflow = 'auto';
    container.style.height = `${height + 10}px`;
  }
}

PivotTable.displayName = 'PivotTable';
PivotTable.propTypes = propTypes;

export default PivotTable;

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