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[Visualizations] Pass 'aggs' parameter to custom request handlers #71423

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merged 7 commits into from
Jul 16, 2020
Merged

[Visualizations] Pass 'aggs' parameter to custom request handlers #71423

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17448ee
pass 'aggConfigs' parameter to request handler
fbaligand Jul 11, 2020
14e7d66
fix @lukeelmers remarks
fbaligand Jul 13, 2020
af3164e
Merge branch 'master' into visFuncAggConfigs
elasticmachine Jul 14, 2020
68c81a6
Only provide aggs argument to visualization function if aggs exist on…
lukeelmers Jul 14, 2020
86302a7
Merge branch 'master' into visFuncAggConfigs
elasticmachine Jul 15, 2020
3c38e0b
Merge branch 'master' into visFuncAggConfigs
elasticmachine Jul 16, 2020
3f251b3
Merge branch 'master' into visFuncAggConfigs
elasticmachine Jul 16, 2020
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12 changes: 11 additions & 1 deletion src/plugins/visualizations/public/expressions/visualization_function.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ import { get } from 'lodash';
import { i18n } from '@kbn/i18n';
import { VisResponseValue, PersistedState } from '../../../../plugins/visualizations/public';
import { ExpressionFunctionDefinition, Render } from '../../../../plugins/expressions/public';
import { getTypes, getIndexPatterns, getFilterManager } from '../services';
import { getTypes, getIndexPatterns, getFilterManager, getSearch } from '../services';

interface Arguments {
index?: string | null;
Expand All @@ -31,6 +31,7 @@ interface Arguments {
schemas?: string;
visConfig?: string;
uiState?: string;
aggConfigs?: string;
}

export type ExpressionFunctionVisualization = ExpressionFunctionDefinition<
Expand Down Expand Up @@ -84,6 +85,11 @@ export const visualization = (): ExpressionFunctionVisualization => ({
default: '"{}"',
help: 'User interface state',
},
aggConfigs: {
types: ['string'],
default: '"{}"',
help: 'Aggregation configurations',
},
},
async fn(input, args, { inspectorAdapters }) {
const visConfigParams = args.visConfig ? JSON.parse(args.visConfig) : {};
Expand All @@ -94,6 +100,9 @@ export const visualization = (): ExpressionFunctionVisualization => ({
const uiStateParams = args.uiState ? JSON.parse(args.uiState) : {};
const uiState = new PersistedState(uiStateParams);

const aggConfigsState = args.aggConfigs ? JSON.parse(args.aggConfigs) : {};
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I don't think you want {} as a fallback here... createAggConfigs expects an array of serialized agg configs as the aggConfigsState:

createAggConfigs(
  indexPattern: IndexPattern,
  configStates: AggConfigSerialized[]
) => IAggConfigs;

So you can probably either fall back to [], or to undefined (in which case createAggConfigs will default to [] anyway).

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You're right, I'll put [] here.
Unless you prefer undefined?

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Makes no difference IMHO. Inside createAggConfigs it will be [] either way

const aggConfigs = indexPattern ? getSearch().aggs.createAggConfigs(indexPattern, aggConfigsState) : null;
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Rather than setting to null here, perhaps we should simply exclude the aggs from the requestHandler if for some reason no index pattern is present? Then they are basically an optional parameter?

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So I set undefined as default, instead of null?

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Yeah, I guess that's what I'm proposing. Basically so that the argument to the request handler is aggs?: IAggConfigs instead of aggs: IAggConfigs | null

I don't feel strongly about this though. In the end it won't make a huge difference since the request handler will likely check if (aggs) {...} the same either way.


if (typeof visType.requestHandler === 'function') {
input = await visType.requestHandler({
partialRows: args.partialRows,
Expand All @@ -107,6 +116,7 @@ export const visualization = (): ExpressionFunctionVisualization => ({
inspectorAdapters,
queryFilter: getFilterManager(),
forceFetch: true,
aggConfigs,
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Could we call this aggs here instead of aggConfigs, as this is consistent with the request handler inside of esaggs.ts, and also with our previous implementation?

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OK, I'll do that.

});
}

Expand Down
3 changes: 2 additions & 1 deletion src/plugins/visualizations/public/legacy/build_pipeline.ts
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Expand Up @@ -533,7 +533,8 @@ export const buildPipeline = async (
pipeline += `visualization type='${vis.type.name}'
${prepareJson('visConfig', visConfig)}
metricsAtAllLevels=${vis.isHierarchical()}
partialRows=${vis.type.requiresPartialRows || vis.params.showPartialRows || false} `;
partialRows=${vis.type.requiresPartialRows || vis.params.showPartialRows || false}
${prepareJson('aggConfigs', vis.data.aggs!.aggs)} `;
if (indexPattern) {
pipeline += `${prepareString('index', indexPattern.id)}`;
}
Expand Down