Interface Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

Models are fancy constructors compiled from Schema definitions. An instance of a model is called a document. Models are responsible for creating and reading documents from the underlying MongoDB database

Type Parameters

  • TRawDocType

  • TQueryHelpers = {}

  • TInstanceMethods = {}

  • TVirtuals = {}

  • THydratedDocumentType = HydratedDocument<TRawDocType, TVirtuals & TInstanceMethods, TQueryHelpers>

  • TSchema = any

Hierarchy

Constructors

  • Type Parameters

    • DocType = TRawDocType

    Parameters

    • Optional doc: DocType
      Optional
    • Optional fields: any
      Optional
    • Optional options: boolean | AnyObject
      Optional

    Returns THydratedDocumentType

Properties

base: mongoose

Base Mongoose instance the model uses.

baseModelName: string

If this is a discriminator model, baseModelName is the name of the base model.

Collection the model uses.

Connection the model uses.

discriminators: {
    [name: string]: mongoose.Model<any>;
}

Registered discriminators for this model.

Type declaration

events: EventEmitter<DefaultEventMap>

Event emitter that reports any errors that occurred. Useful for global error handling.

modelName: string

The name of the model

schema: Schema<TRawDocType, mongoose.Model<TRawDocType, any, any, any, IfAny<TRawDocType, any, mongoose.Document<unknown, any, TRawDocType> & Require_id<TRawDocType>>, any>, {}, {}, {}, {}, DefaultSchemaOptions, ObtainDocumentType<any, TRawDocType, ResolveSchemaOptions<DefaultSchemaOptions>>, IfAny<FlatRecord<ObtainDocumentType<any, TRawDocType, ResolveSchemaOptions<DefaultSchemaOptions>>>, any, mongoose.Document<unknown, {}, FlatRecord<ObtainDocumentType<any, TRawDocType, ResolveSchemaOptions<DefaultSchemaOptions>>>> & Require_id<FlatRecord<ObtainDocumentType<any, TRawDocType, ResolveSchemaOptions<DefaultSchemaOptions>>>>>>

Schema the model uses.

Type declaration

    Type declaration

      Type declaration

        Type declaration

          Methods

          • Adds a $where clause to this query

            Parameters

            • argument: string | Function

            Returns QueryWithHelpers<THydratedDocumentType[], THydratedDocumentType, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • K

            Parameters

            • error: Error
            • event: string | symbol
            • Rest ...args: AnyRest
              Rest

            Returns void

          • Alias for emitter.on(eventName, listener).

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol
            • listener: ((...args) => void)
                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.1.26

          • Type Parameters

            • R = any

            Parameters

            Returns Aggregate<R[]>

          • Type Parameters

            • R = any

            Parameters

            Returns Aggregate<R[]>

          • Sends multiple save() calls in a single bulkWrite(). This is faster than sending multiple save() calls because with bulkSave() there is only one network round trip to the MongoDB server.

            Parameters

            Returns Promise<BulkWriteResult>

          • Sends multiple insertOne, updateOne, updateMany, replaceOne, deleteOne, and/or deleteMany operations to the MongoDB server in one command. This is faster than sending multiple independent operations (e.g. if you use create()) because with bulkWrite() there is only one network round trip to the MongoDB server.

            Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<BulkWriteResult & {
                mongoose?: {
                    validationErrors: Error[];
                };
            }>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<BulkWriteResult>

          • Parameters

            • obj: AnyObject
            • Optional options: {
                  ignoreCastErrors?: boolean;
              }
              Optional
              • Optional ignoreCastErrors?: boolean

            Returns TRawDocType

          • Creates a count query: counts the number of documents that match filter.

            Parameters

            Returns QueryWithHelpers<number, THydratedDocumentType, TQueryHelpers, TRawDocType, "count">

          • Creates a countDocuments query: counts the number of documents that match filter.

            Parameters

            Returns QueryWithHelpers<number, THydratedDocumentType, TQueryHelpers, TRawDocType, "countDocuments">

          • Creates a new document or documents

            Type Parameters

            • DocContents = AnyKeys<TRawDocType>

            Parameters

            • docs: (TRawDocType | DocContents)[]
            • options: CreateOptions & {
                  aggregateErrors: true;
              }

            Returns Promise<(THydratedDocumentType | Error)[]>

          • Type Parameters

            • DocContents = AnyKeys<TRawDocType>

            Parameters

            • docs: (TRawDocType | DocContents)[]
            • Optional options: CreateOptions
              Optional

            Returns Promise<THydratedDocumentType[]>

          • Type Parameters

            • DocContents = AnyKeys<TRawDocType>

            Parameters

            • doc: TRawDocType | DocContents

            Returns Promise<THydratedDocumentType>

          • Type Parameters

            • DocContents = AnyKeys<TRawDocType>

            Parameters

            • Rest ...docs: (TRawDocType | DocContents)[]
              Rest

            Returns Promise<THydratedDocumentType[]>

          • Create the collection for this model. By default, if no indexes are specified, mongoose will not create the collection for the model until any documents are created. Use this method to create the collection explicitly.

            Type Parameters

            Parameters

            Returns Promise<mongoose.mongo.Collection<T>>

          • Similar to ensureIndexes(), except for it uses the createIndex function.

            Parameters

            Returns Promise<void>

          • Deletes all of the documents that match conditions from the collection. Behaves like remove(), but deletes all documents that match conditions regardless of the single option.

            Parameters

            Returns QueryWithHelpers<DeleteResult, THydratedDocumentType, TQueryHelpers, TRawDocType, "deleteMany">

          • Parameters

            Returns QueryWithHelpers<DeleteResult, THydratedDocumentType, TQueryHelpers, TRawDocType, "deleteMany">

          • Deletes the first document that matches conditions from the collection. Behaves like remove(), but deletes at most one document regardless of the single option.

            Parameters

            Returns QueryWithHelpers<DeleteResult, THydratedDocumentType, TQueryHelpers, TRawDocType, "deleteOne">

          • Parameters

            Returns QueryWithHelpers<DeleteResult, THydratedDocumentType, TQueryHelpers, TRawDocType, "deleteOne">

          • Does a dry-run of Model.syncIndexes(), meaning that the result of this function would be the result of Model.syncIndexes().

            Parameters

            • Optional options: Record<string, unknown>
              Optional

            Returns Promise<IndexesDiff>

          • Creates a distinct query: returns the distinct values of the given field that match filter.

            Type Parameters

            • ReturnType = any

            Parameters

            • field: string
            • Optional filter: FilterQuery<TRawDocType>
              Optional

            Returns QueryWithHelpers<ReturnType[], THydratedDocumentType, TQueryHelpers, TRawDocType, "distinct">

          • Synchronously calls each of the listeners registered for the event namedeventName, in the order they were registered, passing the supplied arguments to each.

            Returns true if the event had listeners, false otherwise.

            import EventEmitter from 'node:events';
            const myEmitter = new EventEmitter();

            // First listener
            myEmitter.on('event', function firstListener() {
            console.log('Helloooo! first listener');
            });
            // Second listener
            myEmitter.on('event', function secondListener(arg1, arg2) {
            console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
            });
            // Third listener
            myEmitter.on('event', function thirdListener(...args) {
            const parameters = args.join(', ');
            console.log(`event with parameters ${parameters} in third listener`);
            });

            console.log(myEmitter.listeners('event'));

            myEmitter.emit('event', 1, 2, 3, 4, 5);

            // Prints:
            // [
            // [Function: firstListener],
            // [Function: secondListener],
            // [Function: thirdListener]
            // ]
            // Helloooo! first listener
            // event with parameters 1, 2 in second listener
            // event with parameters 1, 2, 3, 4, 5 in third listener

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol
            • Rest ...args: AnyRest
              Rest

            Returns boolean

            Since

            v0.1.26

          • Sends createIndex commands to mongo for each index declared in the schema. The createIndex commands are sent in series.

            Parameters

            Returns Promise<void>

          • Creates a estimatedDocumentCount query: counts the number of documents in the collection.

            Parameters

            Returns QueryWithHelpers<number, THydratedDocumentType, TQueryHelpers, TRawDocType, "estimatedDocumentCount">

          • Returns an array listing the events for which the emitter has registered listeners. The values in the array are strings or Symbols.

            import EventEmitter from 'node:events';
            const myEE = new EventEmitter();
            myEE.on('foo', () => {});
            myEE.on('bar', () => {});

            const sym = Symbol('symbol');
            myEE.on(sym, () => {});

            console.log(myEE.eventNames());
            // Prints: [ 'foo', 'bar', Symbol(symbol) ]

            Returns (string | symbol)[]

            Since

            v6.0.0

          • Returns a document with its _id if at least one document exists in the database that matches the given filter, and null otherwise.

            Parameters

            Returns QueryWithHelpers<{
                _id: InferId<TRawDocType>;
            }, THydratedDocumentType, TQueryHelpers, TRawDocType, "findOne">

          • Creates a find query: gets a list of documents that match filter.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<Require_id<FlattenMaps<TRawDocType>>[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Finds a single document by its _id field. findById(id) is almost* equivalent to findOne({ _id: id }). If you want to query by a document's _id, use findById() instead of findOne().

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Creates a findByIdAndDelete query, filtering by the given _id.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Creates a findByIdAndRemove query, filtering by the given _id.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Creates a findOneAndUpdate query, filtering by the given _id.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            • id: any
            • update: UpdateQuery<TRawDocType>
            • options: Object

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Finds one document.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOne">

          • Creates a findOneAndDelete query: atomically finds the given document, deletes it, and returns the document as it was before deletion.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            • Optional filter: FilterQuery<TRawDocType>
              Optional
            • Optional options: mongoose.QueryOptions<TRawDocType> & {
                  includeResultMetadata: true;
              }
              Optional

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndDelete">

          • Creates a findOneAndRemove query: atomically finds the given document and deletes it.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndRemove">

          • Creates a findOneAndReplace query: atomically finds the given document and replaces it with replacement.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndReplace">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndReplace">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndReplace">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndReplace">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndReplace">

          • Creates a findOneAndUpdate query: atomically find the first document that matches filter and apply update.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<TRawDocType extends any[]
                ? Require_id<FlattenMaps<TRawDocType>>[]
                : Require_id<FlattenMaps<TRawDocType>>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<mongoose.ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<ResultDoc, ResultDoc, TQueryHelpers, TRawDocType, "findOneAndUpdate">

          • Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults to defaultMaxListeners.

            Returns number

            Since

            v1.0.0

          • Shortcut for creating a new Document from existing raw data, pre-saved in the DB. The document returned has no paths marked as modified initially.

            Parameters

            • obj: any
            • Optional projection: AnyObject
              Optional
            • Optional options: {
                  setters?: boolean;
              }
              Optional
              • Optional setters?: boolean

            Returns THydratedDocumentType

          • This function is responsible for building indexes, unless autoIndex is turned off. Mongoose calls this function automatically when a model is created using mongoose.model() or connection.model(), so you don't need to call it.

            Returns Promise<THydratedDocumentType>

          • Inserts one or more new documents as a single insertMany call to the MongoDB server.

            Parameters

            • docs: TRawDocType[]

            Returns Promise<THydratedDocumentType[]>

          • Parameters

            Returns Promise<Require_id<TRawDocType>[]>

          • Parameters

            • doc: TRawDocType[]
            • options: InsertManyOptions & {
                  ordered: false;
                  rawResult: true;
              }

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<TRawDocType>> & {
                mongoose: {
                    results: (Object | THydratedDocumentType | Error)[];
                    validationErrors: (mongoose.Error.CastError | ValidatorError)[];
                };
            }>

          • Parameters

            • docs: TRawDocType[]
            • options: InsertManyOptions & {
                  lean: true;
                  rawResult: true;
              }

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<TRawDocType>>>

          • Parameters

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<THydratedDocumentType>>>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • docs: (TRawDocType | DocContents)[]
            • options: InsertManyOptions & {
                  lean: true;
              }

            Returns Promise<Require_id<DocContents>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • docs: TRawDocType | DocContents
            • options: InsertManyOptions & {
                  lean: true;
              }

            Returns Promise<Require_id<DocContents>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • doc: TRawDocType | DocContents
            • options: InsertManyOptions & {
                  ordered: false;
                  rawResult: true;
              }

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<DocContents>> & {
                mongoose: {
                    results: (Object | Error | MergeType<THydratedDocumentType, DocContents>)[];
                    validationErrors: (mongoose.Error.CastError | ValidatorError)[];
                };
            }>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • docs: (TRawDocType | DocContents)[]
            • options: InsertManyOptions & {
                  rawResult: true;
              }

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<DocContents>>>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • docs: (TRawDocType | DocContents)[]

            Returns Promise<MergeType<THydratedDocumentType, Omit<DocContents, "_id">>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<Require_id<DocContents>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<mongoose.mongo.InsertManyResult<Require_id<DocContents>>>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<MergeType<THydratedDocumentType, Omit<DocContents, "_id">>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            Returns Promise<MergeType<THydratedDocumentType, Omit<DocContents, "_id">>[]>

          • Type Parameters

            • DocContents = TRawDocType

            Parameters

            • doc: DocContents

            Returns Promise<MergeType<THydratedDocumentType, Omit<DocContents, "_id">>[]>

          • Lists the indexes currently defined in MongoDB. This may or may not be the same as the indexes defined in your schema depending on whether you use the autoIndex option and if you build indexes manually.

            Returns Promise<any[]>

          • Returns the number of listeners listening to the event named eventName.

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

              The name of the event being listened for

            • Optional listener: Function
              Optional

            Returns number

            Since

            v3.2.0

          • Returns a copy of the array of listeners for the event named eventName.

            server.on('connection', (stream) => {
            console.log('someone connected!');
            });
            console.log(util.inspect(server.listeners('connection')));
            // Prints: [ [Function] ]

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

            Returns Function[]

            Since

            v0.1.26

          • Alias for emitter.removeListener().

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol
            • listener: ((...args) => void)
                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v10.0.0

          • Adds the listener function to the end of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

            server.on('connection', (stream) => {
            console.log('someone connected!');
            });

            Returns a reference to the EventEmitter, so that calls can be chained.

            By default, event listeners are invoked in the order they are added. Theemitter.prependListener() method can be used as an alternative to add the event listener to the beginning of the listeners array.

            const myEE = new EventEmitter();
            myEE.on('foo', () => console.log('a'));
            myEE.prependListener('foo', () => console.log('b'));
            myEE.emit('foo');
            // Prints:
            // b
            // a

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

              The name of the event.

            • listener: ((...args) => void)

              The callback function

                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.1.101

          • Adds a one-timelistener function for the event named eventName. The next time eventName is triggered, this listener is removed and then invoked.

            server.once('connection', (stream) => {
            console.log('Ah, we have our first user!');
            });

            Returns a reference to the EventEmitter, so that calls can be chained.

            By default, event listeners are invoked in the order they are added. Theemitter.prependOnceListener() method can be used as an alternative to add the event listener to the beginning of the listeners array.

            const myEE = new EventEmitter();
            myEE.once('foo', () => console.log('a'));
            myEE.prependOnceListener('foo', () => console.log('b'));
            myEE.emit('foo');
            // Prints:
            // b
            // a

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

              The name of the event.

            • listener: ((...args) => void)

              The callback function

                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.3.0

          • Populates document references.

            Parameters

            Returns Promise<THydratedDocumentType[]>

          • Parameters

            Returns Promise<THydratedDocumentType>

          • Type Parameters

            • Paths

            Parameters

            Returns Promise<MergeType<THydratedDocumentType, Paths>[]>

          • Type Parameters

            • Paths

            Parameters

            Returns Promise<MergeType<THydratedDocumentType, Paths>>

          • Adds the listener function to the beginning of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

            server.prependListener('connection', (stream) => {
            console.log('someone connected!');
            });

            Returns a reference to the EventEmitter, so that calls can be chained.

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

              The name of the event.

            • listener: ((...args) => void)

              The callback function

                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v6.0.0

          • Adds a one-timelistener function for the event named eventName to the_beginning_ of the listeners array. The next time eventName is triggered, this listener is removed, and then invoked.

            server.prependOnceListener('connection', (stream) => {
            console.log('Ah, we have our first user!');
            });

            Returns a reference to the EventEmitter, so that calls can be chained.

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

              The name of the event.

            • listener: ((...args) => void)

              The callback function

                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v6.0.0

          • Returns a copy of the array of listeners for the event named eventName, including any wrappers (such as those created by .once()).

            const emitter = new EventEmitter();
            emitter.once('log', () => console.log('log once'));

            // Returns a new Array with a function `onceWrapper` which has a property
            // `listener` which contains the original listener bound above
            const listeners = emitter.rawListeners('log');
            const logFnWrapper = listeners[0];

            // Logs "log once" to the console and does not unbind the `once` event
            logFnWrapper.listener();

            // Logs "log once" to the console and removes the listener
            logFnWrapper();

            emitter.on('log', () => console.log('log persistently'));
            // Will return a new Array with a single function bound by `.on()` above
            const newListeners = emitter.rawListeners('log');

            // Logs "log persistently" twice
            newListeners[0]();
            emitter.emit('log');

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol

            Returns Function[]

            Since

            v9.4.0

          • Removes all listeners, or those of the specified eventName.

            It is bad practice to remove listeners added elsewhere in the code, particularly when the EventEmitter instance was created by some other component or module (e.g. sockets or file streams).

            Returns a reference to the EventEmitter, so that calls can be chained.

            Parameters

            • Optional event: string | symbol
              Optional

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.1.26

          • Removes the specified listener from the listener array for the event namedeventName.

            const callback = (stream) => {
            console.log('someone connected!');
            };
            server.on('connection', callback);
            // ...
            server.removeListener('connection', callback);

            removeListener() will remove, at most, one instance of a listener from the listener array. If any single listener has been added multiple times to the listener array for the specified eventName, then removeListener() must be called multiple times to remove each instance.

            Once an event is emitted, all listeners attached to it at the time of emitting are called in order. This implies that anyremoveListener() or removeAllListeners() calls after emitting and_before_ the last listener finishes execution will not remove them fromemit() in progress. Subsequent events behave as expected.

            const myEmitter = new MyEmitter();

            const callbackA = () => {
            console.log('A');
            myEmitter.removeListener('event', callbackB);
            };

            const callbackB = () => {
            console.log('B');
            };

            myEmitter.on('event', callbackA);

            myEmitter.on('event', callbackB);

            // callbackA removes listener callbackB but it will still be called.
            // Internal listener array at time of emit [callbackA, callbackB]
            myEmitter.emit('event');
            // Prints:
            // A
            // B

            // callbackB is now removed.
            // Internal listener array [callbackA]
            myEmitter.emit('event');
            // Prints:
            // A

            Because listeners are managed using an internal array, calling this will change the position indices of any listener registered after the listener being removed. This will not impact the order in which listeners are called, but it means that any copies of the listener array as returned by the emitter.listeners() method will need to be recreated.

            When a single function has been added as a handler multiple times for a single event (as in the example below), removeListener() will remove the most recently added instance. In the example the once('ping')listener is removed:

            const ee = new EventEmitter();

            function pong() {
            console.log('pong');
            }

            ee.on('ping', pong);
            ee.once('ping', pong);
            ee.removeListener('ping', pong);

            ee.emit('ping');
            ee.emit('ping');

            Returns a reference to the EventEmitter, so that calls can be chained.

            Type Parameters

            • K

            Parameters

            • eventName: string | symbol
            • listener: ((...args) => void)
                • (...args): void
                • Parameters

                  • Rest ...args: any[]
                    Rest

                  Returns void

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.1.26

          • Creates a replaceOne query: finds the first document that matches filter and replaces it with replacement.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            Returns QueryWithHelpers<UpdateWriteOpResult, ResultDoc, TQueryHelpers, TRawDocType, "replaceOne">

          • By default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default that helps finding memory leaks. The emitter.setMaxListeners() method allows the limit to be modified for this specific EventEmitter instance. The value can be set toInfinity (or 0) to indicate an unlimited number of listeners.

            Returns a reference to the EventEmitter, so that calls can be chained.

            Parameters

            • n: number

            Returns mongoose.Model<TRawDocType, TQueryHelpers, TInstanceMethods, TVirtuals, THydratedDocumentType, TSchema>

            Since

            v0.3.5

          • Makes the indexes in MongoDB match the indexes defined in this model's schema. This function will drop any indexes that are not defined in the model's schema except the _id index, and build any indexes that are in your schema but not in MongoDB.

            Parameters

            Returns Promise<string[]>

          • Translate any aliases fields/conditions so the final query or document object is pure

            Parameters

            • raw: any

            Returns any

          • Casts and validates the given object against this model's schema, passing the given context to custom validators.

            Returns Promise<void>

          • Parameters

            • obj: any

            Returns Promise<void>

          • Parameters

            Returns Promise<void>

          • Parameters

            Returns Promise<void>

          • Creates a Query, applies the passed conditions, and returns the Query.

            Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            • path: string
            • Optional val: any
              Optional

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Parameters

            • obj: object

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          • Type Parameters

            • ResultDoc = THydratedDocumentType

            Returns QueryWithHelpers<ResultDoc[], ResultDoc, TQueryHelpers, TRawDocType, "find">

          Generated using TypeDoc