demarches-normaliennes/app/javascript/components/ComboCommunesSearch.jsx
Paul Chavard 10cdd2c77e Apply suggestions from code review
Co-authored-by: Pierre de La Morinerie <kemenaran@gmail.com>
2021-06-16 09:38:47 +02:00

52 lines
1.7 KiB
JavaScript

import React from 'react';
import { QueryClientProvider } from 'react-query';
import { matchSorter } from 'match-sorter';
import ComboSearch from './ComboSearch';
import { queryClient, searchResultsLimit } from './shared/queryClient';
function expandResultsWithMultiplePostalCodes(term, results) {
// A single result may have several associated postal codes.
// To make the search results more precise, we want to generate
// an actual result for each postal code.
const expandedResults = results.flatMap((result) =>
result.codesPostaux.map((codePostal) => ({
...result,
codesPostaux: [codePostal]
}))
);
// Some very large cities (like Paris) have A LOT of associated postal codes.
// As we generated one result per postal code, we now have a lot of results
// for the same city. If the number of results is above the threshold, we use
// local search to narrow the results.
const limit = searchResultsLimit(term);
if (expandedResults.length > limit) {
return matchSorter(expandedResults, term, {
keys: [(item) => `${item.nom} (${item.codesPostaux[0]})`, 'code'],
sorter: (rankedItems) => rankedItems
}).slice(0, limit + 1);
}
return expandedResults;
}
function ComboCommunesSearch(params) {
return (
<QueryClientProvider client={queryClient}>
<ComboSearch
required={params.mandatory}
hiddenFieldId={params.hiddenFieldId}
scope="communes"
minimumInputLength={2}
transformResult={({ code, nom, codesPostaux }) => [
code,
`${nom} (${codesPostaux[0]})`
]}
transformResults={expandResultsWithMultiplePostalCodes}
/>
</QueryClientProvider>
);
}
export default ComboCommunesSearch;