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9756872 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | "use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CountDocumentsOperation = void 0;
const aggregate_1 = require("./aggregate");
/** @internal */
class CountDocumentsOperation extends aggregate_1.AggregateOperation {
constructor(collection, query, options) {
const pipeline = [];
pipeline.push({ $match: query });
if (typeof options.skip === 'number') {
pipeline.push({ $skip: options.skip });
}
if (typeof options.limit === 'number') {
pipeline.push({ $limit: options.limit });
}
pipeline.push({ $group: { _id: 1, n: { $sum: 1 } } });
super(collection.s.namespace, pipeline, options);
}
async execute(server, session) {
const result = await super.execute(server, session);
// NOTE: We're avoiding creating a cursor here to reduce the callstack.
const response = result;
if (response.cursor == null || response.cursor.firstBatch == null) {
return 0;
}
const docs = response.cursor.firstBatch;
return docs.length ? docs[0].n : 0;
}
}
exports.CountDocumentsOperation = CountDocumentsOperation;
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