Express_Crud_Example/node_modules/mongodb/lib/db.js
2022-01-28 22:33:42 +01:00

327 lines
14 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Db = void 0;
const admin_1 = require("./admin");
const bson_1 = require("./bson");
const change_stream_1 = require("./change_stream");
const collection_1 = require("./collection");
const CONSTANTS = require("./constants");
const aggregation_cursor_1 = require("./cursor/aggregation_cursor");
const error_1 = require("./error");
const logger_1 = require("./logger");
const add_user_1 = require("./operations/add_user");
const collections_1 = require("./operations/collections");
const create_collection_1 = require("./operations/create_collection");
const drop_1 = require("./operations/drop");
const execute_operation_1 = require("./operations/execute_operation");
const indexes_1 = require("./operations/indexes");
const list_collections_1 = require("./operations/list_collections");
const profiling_level_1 = require("./operations/profiling_level");
const remove_user_1 = require("./operations/remove_user");
const rename_1 = require("./operations/rename");
const run_command_1 = require("./operations/run_command");
const set_profiling_level_1 = require("./operations/set_profiling_level");
const stats_1 = require("./operations/stats");
const read_concern_1 = require("./read_concern");
const read_preference_1 = require("./read_preference");
const utils_1 = require("./utils");
const write_concern_1 = require("./write_concern");
// Allowed parameters
const DB_OPTIONS_ALLOW_LIST = [
'writeConcern',
'readPreference',
'readPreferenceTags',
'native_parser',
'forceServerObjectId',
'pkFactory',
'serializeFunctions',
'raw',
'authSource',
'ignoreUndefined',
'readConcern',
'retryMiliSeconds',
'numberOfRetries',
'loggerLevel',
'logger',
'promoteBuffers',
'promoteLongs',
'bsonRegExp',
'enableUtf8Validation',
'promoteValues',
'compression',
'retryWrites'
];
/**
* The **Db** class is a class that represents a MongoDB Database.
* @public
*
* @example
* ```js
* const { MongoClient } = require('mongodb');
* // Connection url
* const url = 'mongodb://localhost:27017';
* // Database Name
* const dbName = 'test';
* // Connect using MongoClient
* MongoClient.connect(url, function(err, client) {
* // Select the database by name
* const testDb = client.db(dbName);
* client.close();
* });
* ```
*/
class Db {
/**
* Creates a new Db instance
*
* @param client - The MongoClient for the database.
* @param databaseName - The name of the database this instance represents.
* @param options - Optional settings for Db construction
*/
constructor(client, databaseName, options) {
var _a;
options = options !== null && options !== void 0 ? options : {};
// Filter the options
options = (0, utils_1.filterOptions)(options, DB_OPTIONS_ALLOW_LIST);
// Ensure we have a valid db name
validateDatabaseName(databaseName);
// Internal state of the db object
this.s = {
// Client
client,
// Options
options,
// Logger instance
logger: new logger_1.Logger('Db', options),
// Unpack read preference
readPreference: read_preference_1.ReadPreference.fromOptions(options),
// Merge bson options
bsonOptions: (0, bson_1.resolveBSONOptions)(options, client),
// Set up the primary key factory or fallback to ObjectId
pkFactory: (_a = options === null || options === void 0 ? void 0 : options.pkFactory) !== null && _a !== void 0 ? _a : utils_1.DEFAULT_PK_FACTORY,
// ReadConcern
readConcern: read_concern_1.ReadConcern.fromOptions(options),
writeConcern: write_concern_1.WriteConcern.fromOptions(options),
// Namespace
namespace: new utils_1.MongoDBNamespace(databaseName)
};
}
get databaseName() {
return this.s.namespace.db;
}
// Options
get options() {
return this.s.options;
}
/**
* slaveOk specified
* @deprecated Use secondaryOk instead
*/
get slaveOk() {
return this.secondaryOk;
}
/**
* Check if a secondary can be used (because the read preference is *not* set to primary)
*/
get secondaryOk() {
var _a;
return ((_a = this.s.readPreference) === null || _a === void 0 ? void 0 : _a.preference) !== 'primary' || false;
}
get readConcern() {
return this.s.readConcern;
}
/**
* The current readPreference of the Db. If not explicitly defined for
* this Db, will be inherited from the parent MongoClient
*/
get readPreference() {
if (this.s.readPreference == null) {
return this.s.client.readPreference;
}
return this.s.readPreference;
}
get bsonOptions() {
return this.s.bsonOptions;
}
// get the write Concern
get writeConcern() {
return this.s.writeConcern;
}
get namespace() {
return this.s.namespace.toString();
}
createCollection(name, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new create_collection_1.CreateCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options)), callback);
}
command(command, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
// Intentionally, we do not inherit options from parent for this operation.
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new run_command_1.RunCommandOperation(this, command, options !== null && options !== void 0 ? options : {}), callback);
}
/**
* Execute an aggregation framework pipeline against the database, needs MongoDB \>= 3.6
*
* @param pipeline - An array of aggregation stages to be executed
* @param options - Optional settings for the command
*/
aggregate(pipeline = [], options) {
if (arguments.length > 2) {
throw new error_1.MongoInvalidArgumentError('Method "db.aggregate()" accepts at most two arguments');
}
if (typeof pipeline === 'function') {
throw new error_1.MongoInvalidArgumentError('Argument "pipeline" must not be function');
}
if (typeof options === 'function') {
throw new error_1.MongoInvalidArgumentError('Argument "options" must not be function');
}
return new aggregation_cursor_1.AggregationCursor((0, utils_1.getTopology)(this), this.s.namespace, pipeline, (0, utils_1.resolveOptions)(this, options));
}
/** Return the Admin db instance */
admin() {
return new admin_1.Admin(this);
}
/**
* Returns a reference to a MongoDB Collection. If it does not exist it will be created implicitly.
*
* @param name - the collection name we wish to access.
* @returns return the new Collection instance
*/
collection(name, options = {}) {
if (typeof options === 'function') {
throw new error_1.MongoInvalidArgumentError('The callback form of this helper has been removed.');
}
const finalOptions = (0, utils_1.resolveOptions)(this, options);
return new collection_1.Collection(this, name, finalOptions);
}
stats(options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new stats_1.DbStatsOperation(this, (0, utils_1.resolveOptions)(this, options)), callback);
}
listCollections(filter = {}, options = {}) {
return new list_collections_1.ListCollectionsCursor(this, filter, (0, utils_1.resolveOptions)(this, options));
}
renameCollection(fromCollection, toCollection, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
// Intentionally, we do not inherit options from parent for this operation.
options = { ...options, readPreference: read_preference_1.ReadPreference.PRIMARY };
// Add return new collection
options.new_collection = true;
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new rename_1.RenameOperation(this.collection(fromCollection), toCollection, options), callback);
}
dropCollection(name, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new drop_1.DropCollectionOperation(this, name, (0, utils_1.resolveOptions)(this, options)), callback);
}
dropDatabase(options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new drop_1.DropDatabaseOperation(this, (0, utils_1.resolveOptions)(this, options)), callback);
}
collections(options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new collections_1.CollectionsOperation(this, (0, utils_1.resolveOptions)(this, options)), callback);
}
createIndex(name, indexSpec, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new indexes_1.CreateIndexOperation(this, name, indexSpec, (0, utils_1.resolveOptions)(this, options)), callback);
}
addUser(username, password, options, callback) {
if (typeof password === 'function') {
(callback = password), (password = undefined), (options = {});
}
else if (typeof password !== 'string') {
if (typeof options === 'function') {
(callback = options), (options = password), (password = undefined);
}
else {
(options = password), (callback = undefined), (password = undefined);
}
}
else {
if (typeof options === 'function')
(callback = options), (options = {});
}
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new add_user_1.AddUserOperation(this, username, password, (0, utils_1.resolveOptions)(this, options)), callback);
}
removeUser(username, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new remove_user_1.RemoveUserOperation(this, username, (0, utils_1.resolveOptions)(this, options)), callback);
}
setProfilingLevel(level, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new set_profiling_level_1.SetProfilingLevelOperation(this, level, (0, utils_1.resolveOptions)(this, options)), callback);
}
profilingLevel(options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new profiling_level_1.ProfilingLevelOperation(this, (0, utils_1.resolveOptions)(this, options)), callback);
}
indexInformation(name, options, callback) {
if (typeof options === 'function')
(callback = options), (options = {});
return (0, execute_operation_1.executeOperation)((0, utils_1.getTopology)(this), new indexes_1.IndexInformationOperation(this, name, (0, utils_1.resolveOptions)(this, options)), callback);
}
/**
* Unref all sockets
* @deprecated This function is deprecated and will be removed in the next major version.
*/
unref() {
(0, utils_1.getTopology)(this).unref();
}
/**
* Create a new Change Stream, watching for new changes (insertions, updates,
* replacements, deletions, and invalidations) in this database. Will ignore all
* changes to system collections.
*
* @param pipeline - An array of {@link https://docs.mongodb.com/manual/reference/operator/aggregation-pipeline/|aggregation pipeline stages} through which to pass change stream documents. This allows for filtering (using $match) and manipulating the change stream documents.
* @param options - Optional settings for the command
*/
watch(pipeline = [], options = {}) {
// Allow optionally not specifying a pipeline
if (!Array.isArray(pipeline)) {
options = pipeline;
pipeline = [];
}
return new change_stream_1.ChangeStream(this, pipeline, (0, utils_1.resolveOptions)(this, options));
}
/** Return the db logger */
getLogger() {
return this.s.logger;
}
get logger() {
return this.s.logger;
}
}
exports.Db = Db;
Db.SYSTEM_NAMESPACE_COLLECTION = CONSTANTS.SYSTEM_NAMESPACE_COLLECTION;
Db.SYSTEM_INDEX_COLLECTION = CONSTANTS.SYSTEM_INDEX_COLLECTION;
Db.SYSTEM_PROFILE_COLLECTION = CONSTANTS.SYSTEM_PROFILE_COLLECTION;
Db.SYSTEM_USER_COLLECTION = CONSTANTS.SYSTEM_USER_COLLECTION;
Db.SYSTEM_COMMAND_COLLECTION = CONSTANTS.SYSTEM_COMMAND_COLLECTION;
Db.SYSTEM_JS_COLLECTION = CONSTANTS.SYSTEM_JS_COLLECTION;
// TODO(NODE-3484): Refactor into MongoDBNamespace
// Validate the database name
function validateDatabaseName(databaseName) {
if (typeof databaseName !== 'string')
throw new error_1.MongoInvalidArgumentError('Database name must be a string');
if (databaseName.length === 0)
throw new error_1.MongoInvalidArgumentError('Database name cannot be the empty string');
if (databaseName === '$external')
return;
const invalidChars = [' ', '.', '$', '/', '\\'];
for (let i = 0; i < invalidChars.length; i++) {
if (databaseName.indexOf(invalidChars[i]) !== -1)
throw new error_1.MongoAPIError(`database names cannot contain the character '${invalidChars[i]}'`);
}
}
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