Merge pull request #13965 from Automattic/vkarpov15/gh-13904

types(model): make InsertManyResult consistent with return type of insertMany

Author: vkarpov15

test/types/models.test.ts

@@ -9,6 +9,7 @@ import mongoose, {
   CallbackError,
   HydratedDocument,
   HydratedDocumentFromSchema,
+  InsertManyResult,
   Query,
   UpdateWriteOpResult,
   AggregateOptions,
@@ -710,6 +711,23 @@ async function gh13746() {
   expectType<OkType>(findOneAndUpdateRes.ok);
 }
 
+function gh13904() {
+  const schema = new Schema({ name: String });
+
+  interface ITest {
+    name?: string;
+  }
+  const Test = model<ITest>('Test', schema);
+
+  expectAssignable<Promise<InsertManyResult<ITest>>>(Test.insertMany(
+    [{ name: 'test' }],
+    {
+      ordered: false,
+      rawResult: true
+    }
+  ));
+}
+
 function gh13957() {
   class RepositoryBase<T> {
     protected model: mongoose.Model<T>;

types/models.d.ts

@@ -374,7 +374,7 @@ declare module 'mongoose' {
       options: InsertManyOptions & { ordered: false; rawResult: true; }
     ): Promise<mongodb.InsertManyResult<Require_id<TRawDocType>> & {
       mongoose: {
-        validationErrors: Error[];
+        validationErrors: (CastError | Error.ValidatorError)[];
         results: Array<
           Error |
           Object |
@@ -403,7 +403,7 @@ declare module 'mongoose' {
       options: InsertManyOptions & { ordered: false; rawResult: true; }
     ): Promise<mongodb.InsertManyResult<Require_id<DocContents>> & {
       mongoose: {
-        validationErrors: Error[];
+        validationErrors: (CastError | Error.ValidatorError)[];
         results: Array<
           Error |
           Object |