37 lines
No EOL
1.4 KiB
JavaScript
37 lines
No EOL
1.4 KiB
JavaScript
"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);
|
|
}
|
|
execute(server, session, callback) {
|
|
super.execute(server, session, (err, result) => {
|
|
if (err || !result) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
// NOTE: We're avoiding creating a cursor here to reduce the callstack.
|
|
const response = result;
|
|
if (response.cursor == null || response.cursor.firstBatch == null) {
|
|
callback(undefined, 0);
|
|
return;
|
|
}
|
|
const docs = response.cursor.firstBatch;
|
|
callback(undefined, docs.length ? docs[0].n : 0);
|
|
});
|
|
}
|
|
}
|
|
exports.CountDocumentsOperation = CountDocumentsOperation;
|
|
//# sourceMappingURL=count_documents.js.map
|