You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.3 KiB
60 lines
2.3 KiB
"use strict"; |
|
Object.defineProperty(exports, "__esModule", { value: true }); |
|
exports.DistinctOperation = void 0; |
|
const utils_1 = require("../utils"); |
|
const command_1 = require("./command"); |
|
const operation_1 = require("./operation"); |
|
/** |
|
* Return a list of distinct values for the given key across a collection. |
|
* @internal |
|
*/ |
|
class DistinctOperation extends command_1.CommandOperation { |
|
/** |
|
* Construct a Distinct operation. |
|
* |
|
* @param collection - Collection instance. |
|
* @param key - Field of the document to find distinct values for. |
|
* @param query - The query for filtering the set of documents to which we apply the distinct filter. |
|
* @param options - Optional settings. See Collection.prototype.distinct for a list of options. |
|
*/ |
|
constructor(collection, key, query, options) { |
|
super(collection, options); |
|
this.options = options ?? {}; |
|
this.collection = collection; |
|
this.key = key; |
|
this.query = query; |
|
} |
|
get commandName() { |
|
return 'distinct'; |
|
} |
|
async execute(server, session, timeoutContext) { |
|
const coll = this.collection; |
|
const key = this.key; |
|
const query = this.query; |
|
const options = this.options; |
|
// Distinct command |
|
const cmd = { |
|
distinct: coll.collectionName, |
|
key: key, |
|
query: query |
|
}; |
|
// Add maxTimeMS if defined |
|
if (typeof options.maxTimeMS === 'number') { |
|
cmd.maxTimeMS = options.maxTimeMS; |
|
} |
|
// we check for undefined specifically here to allow falsy values |
|
// eslint-disable-next-line no-restricted-syntax |
|
if (typeof options.comment !== 'undefined') { |
|
cmd.comment = options.comment; |
|
} |
|
// Do we have a readConcern specified |
|
(0, utils_1.decorateWithReadConcern)(cmd, coll, options); |
|
// Have we specified collation |
|
(0, utils_1.decorateWithCollation)(cmd, coll, options); |
|
const result = await super.executeCommand(server, session, cmd, timeoutContext); |
|
return this.explain ? result : result.values; |
|
} |
|
} |
|
exports.DistinctOperation = DistinctOperation; |
|
(0, operation_1.defineAspects)(DistinctOperation, [operation_1.Aspect.READ_OPERATION, operation_1.Aspect.RETRYABLE, operation_1.Aspect.EXPLAINABLE]); |
|
//# sourceMappingURL=distinct.js.map
|