superset pivotOperator 源码
superset pivotOperator 代码
文件路径：/superset-frontend/packages/superset-ui-chart-controls/src/operators/pivotOperator.ts
/**
* 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 limitationsxw
* under the License.
*/
import {
ensureIsArray,
getColumnLabel,
getMetricLabel,
PostProcessingPivot,
getXAxisLabel,
} from '@superset-ui/core';
import { PostProcessingFactory } from './types';
export const pivotOperator: PostProcessingFactory<PostProcessingPivot> = (
formData,
queryObject,
) => {
const metricLabels = ensureIsArray(queryObject.metrics).map(getMetricLabel);
const xAxis = getXAxisLabel(formData);
if (xAxis && metricLabels.length) {
return {
operation: 'pivot',
options: {
index: [xAxis],
columns: ensureIsArray(queryObject.columns).map(getColumnLabel),
// Create 'dummy' mean aggregates to assign cell values in pivot table
// use the 'mean' aggregates to avoid drop NaN. PR: https://github.com/apache-superset/superset-ui/pull/1231
aggregates: Object.fromEntries(
metricLabels.map(metric => [metric, { operator: 'mean' }]),
),
drop_missing_columns: !formData?.show_empty_columns,
},
};
}
return undefined;
};
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