Fix: Mongoose types incorrect for when includeResultMetadata: true is set (#14078)

* Added Seperate type for Middlewares that support includeResultMetadata

* Added Return Type as Raw Result when includeResultMetadata is TRUE for all middlewares

* Added Seperate post query type for middlewares that support includeResultMetadata

* Added Seperate post query type for middlewares that support includeResultMetadata, Fixed Lint

* Updated MongooseRawResultQueryMiddleware and removed duplicate and redundant middlewares

* Removed 'findByIdAndRemove' type definations : DEPRECATED, Fixed Linting Errors

* Removed test cases for 'findByIdAndRemove', Added test case for 'findOneAndDeleteRes', 'findByIdAndDeleteRes'

* Updated findOneAndDelete, Added test case for findOneAndUpdate, findOneAndReplace middlewares

Author: prathamVaidya

test/types/middleware.test.ts

@@ -1,4 +1,4 @@
-import { Schema, model, Model, Document, SaveOptions, Query, Aggregate, HydratedDocument, PreSaveMiddlewareFunction } from 'mongoose';
+import { Schema, model, Model, Document, SaveOptions, Query, Aggregate, HydratedDocument, PreSaveMiddlewareFunction, ModifyResult } from 'mongoose';
 import { expectError, expectType, expectNotType, expectAssignable } from 'tsd';
 
 const preMiddlewareFn: PreSaveMiddlewareFunction<Document> = function(next, opts) {
@@ -103,7 +103,17 @@ schema.post<Query<number, any>>('countDocuments', function(count, next) {
 });
 
 schema.post<Query<ITest, ITest>>('findOneAndDelete', function(res, next) {
-  expectType<ITest>(res);
+  expectType<ITest | ModifyResult<ITest> | null>(res);
+  next();
+});
+
+schema.post<Query<ITest, ITest>>('findOneAndUpdate', function(res, next) {
+  expectType<ITest | ModifyResult<ITest> | null>(res);
+  next();
+});
+
+schema.post<Query<ITest, ITest>>('findOneAndReplace', function(res, next) {
+  expectType<ITest | ModifyResult<ITest> | null>(res);
   next();
 });
 

test/types/models.test.ts

@@ -673,9 +673,6 @@ async function gh13705() {
   const findByIdAndDeleteRes = await TestModel.findByIdAndDelete('0'.repeat(24), { lean: true });
   expectType<ExpectedLeanDoc | null>(findByIdAndDeleteRes);
 
-  const findByIdAndRemoveRes = await TestModel.findByIdAndRemove('0'.repeat(24), { lean: true });
-  expectType<ExpectedLeanDoc | null>(findByIdAndRemoveRes);
-
   const findByIdAndUpdateRes = await TestModel.findByIdAndUpdate('0'.repeat(24), {}, { lean: true });
   expectType<ExpectedLeanDoc | null>(findByIdAndUpdateRes);
 
@@ -709,6 +706,16 @@ async function gh13746() {
   expectType<boolean | undefined>(findOneAndUpdateRes.lastErrorObject?.updatedExisting);
   expectType<ObjectId | undefined>(findOneAndUpdateRes.lastErrorObject?.upserted);
   expectType<OkType>(findOneAndUpdateRes.ok);
+
+  const findOneAndDeleteRes = await TestModel.findOneAndDelete({ _id: '0'.repeat(24) }, { includeResultMetadata: true });
+  expectType<boolean | undefined>(findOneAndDeleteRes.lastErrorObject?.updatedExisting);
+  expectType<ObjectId | undefined>(findOneAndDeleteRes.lastErrorObject?.upserted);
+  expectType<OkType>(findOneAndDeleteRes.ok);
+
+  const findByIdAndDeleteRes = await TestModel.findByIdAndDelete('0'.repeat(24), { includeResultMetadata: true });
+  expectType<boolean | undefined>(findByIdAndDeleteRes.lastErrorObject?.updatedExisting);
+  expectType<ObjectId | undefined>(findByIdAndDeleteRes.lastErrorObject?.upserted);
+  expectType<OkType>(findByIdAndDeleteRes.ok);
 }
 
 function gh13904() {

types/index.d.ts

@@ -336,6 +336,7 @@ declare module 'mongoose' {
     post<T = THydratedDocumentType>(method: MongooseDistinctDocumentMiddleware|MongooseDistinctDocumentMiddleware[], options: SchemaPostOptions & SchemaPostOptions, fn: PostMiddlewareFunction<T, T>): this;
     post<T = THydratedDocumentType>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: true, query: false }, fn: PostMiddlewareFunction<T, T>): this;
     // this = Query
+    post<T = Query<any, any>>(method: MongooseRawResultQueryMiddleware|MongooseRawResultQueryMiddleware[], fn: PostMiddlewareFunction<T, null | QueryResultType<T> | ModifyResult<QueryResultType<T>>>): this;
     post<T = Query<any, any>>(method: MongooseDefaultQueryMiddleware|MongooseDefaultQueryMiddleware[], fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
     post<T = Query<any, any>>(method: MongooseDistinctQueryMiddleware|MongooseDistinctQueryMiddleware[], options: SchemaPostOptions, fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;
     post<T = Query<any, any>>(method: MongooseQueryOrDocumentMiddleware | MongooseQueryOrDocumentMiddleware[] | RegExp, options: SchemaPostOptions & { document: false, query: true }, fn: PostMiddlewareFunction<T, QueryResultType<T>>): this;

types/middlewares.d.ts

@@ -5,7 +5,9 @@ declare module 'mongoose' {
   type MongooseDistinctDocumentMiddleware = 'save' | 'init' | 'validate';
   type MongooseDocumentMiddleware = MongooseDistinctDocumentMiddleware | MongooseQueryAndDocumentMiddleware;
 
+  type MongooseRawResultQueryMiddleware = 'findOneAndUpdate' | 'findOneAndReplace' | 'findOneAndDelete';
   type MongooseDistinctQueryMiddleware = 'estimatedDocumentCount' | 'countDocuments' | 'deleteMany' | 'distinct' | 'find' | 'findOne' | 'findOneAndDelete' | 'findOneAndReplace' | 'findOneAndUpdate' | 'replaceOne' | 'updateMany';
+
   type MongooseDefaultQueryMiddleware = MongooseDistinctQueryMiddleware | 'updateOne' | 'deleteOne';
   type MongooseQueryMiddleware = MongooseDistinctQueryMiddleware | MongooseQueryAndDocumentMiddleware;
 

types/models.d.ts

@@ -542,21 +542,9 @@ declare module 'mongoose' {
     >;
     findByIdAndDelete<ResultDoc = THydratedDocumentType>(
       id?: mongodb.ObjectId | any,
-      options?: QueryOptions<TRawDocType> | null
-    ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete'>;
-
-    /** Creates a `findByIdAndRemove` query, filtering by the given `_id`. */
-    findByIdAndRemove<ResultDoc = THydratedDocumentType>(
-      id: mongodb.ObjectId | any,
-      options: QueryOptions<TRawDocType> & { lean: true }
-    ): QueryWithHelpers<
-      GetLeanResultType<TRawDocType, TRawDocType, 'findOneAndDelete'> | null,
-      ResultDoc,
-      TQueryHelpers,
-      TRawDocType,
-      'findOneAndDelete'
-    >;
-    findByIdAndRemove<ResultDoc = THydratedDocumentType>(
+      options?: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete'>;
+    findByIdAndDelete<ResultDoc = THydratedDocumentType>(
       id?: mongodb.ObjectId | any,
       options?: QueryOptions<TRawDocType> | null
     ): QueryWithHelpers<ResultDoc | null, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete'>;
@@ -578,11 +566,6 @@ declare module 'mongoose' {
       update: UpdateQuery<TRawDocType>,
       options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
     ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate'>;
-    findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
-      id: mongodb.ObjectId | any,
-      update: UpdateQuery<TRawDocType>,
-      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
-    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndUpdate'>;
     findByIdAndUpdate<ResultDoc = THydratedDocumentType>(
       id: mongodb.ObjectId | any,
       update: UpdateQuery<TRawDocType>,
@@ -609,6 +592,10 @@ declare module 'mongoose' {
       TRawDocType,
       'findOneAndDelete'
     >;
+    findOneAndDelete<ResultDoc = THydratedDocumentType>(
+      filter?: FilterQuery<TRawDocType>,
+      options?: QueryOptions<TRawDocType> & { includeResultMetadata: true }
+    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndDelete'>;
     findOneAndDelete<ResultDoc = THydratedDocumentType>(
       filter?: FilterQuery<TRawDocType>,
       options?: QueryOptions<TRawDocType> | null
@@ -631,11 +618,6 @@ declare module 'mongoose' {
       replacement: TRawDocType | AnyObject,
       options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
     ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace'>;
-    findOneAndReplace<ResultDoc = THydratedDocumentType>(
-      filter: FilterQuery<TRawDocType>,
-      replacement: TRawDocType | AnyObject,
-      options: QueryOptions<TRawDocType> & { includeResultMetadata: true }
-    ): QueryWithHelpers<ModifyResult<ResultDoc>, ResultDoc, TQueryHelpers, TRawDocType, 'findOneAndReplace'>;
     findOneAndReplace<ResultDoc = THydratedDocumentType>(
       filter: FilterQuery<TRawDocType>,
       replacement: TRawDocType | AnyObject,