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More performant data subject resolving #117

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More performant data subject resolving #117

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16 changes: 13 additions & 3 deletions lib/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -237,18 +237,28 @@ const addDataSubjectForDetailsEntity = (row, log, req, entity, model) => {

const resolveDataSubjects = async (logs, req) => {
const map = _getDataSubjectsMap(req)
const reqs = [], qtoReqs = new Map(), rowToResMap = new Map();
for (const each of Object.values(logs)) {
if (each.data_subject.id instanceof cds.ql.Query) {
const q = each.data_subject.id
if (map.has(q)) {
each.data_subject.id = map.get(q)
} else {
const res = await q
map.set(q, res)
each.data_subject.id = res
if (!qtoReqs.has(q)) {
reqs.push(q)
qtoReqs.set(q, reqs.length - 1);
rowToResMap.set(each, reqs.length - 1);
} else {
rowToResMap.set(each, qtoReqs.get(q));
}
}
}
}
const dsIDs = await Promise.all(reqs);
rowToResMap.forEach((idx, each) => {
map.set(each.data_subject.id, dsIDs[idx]);
each.data_subject.id = dsIDs[idx];
});
}

module.exports = {
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