From 2e4ec7de39c0751a75086d9e97daf2bf50b47ec3 Mon Sep 17 00:00:00 2001
From: Chau Tran <ctch5@mail.umsl.edu>
Date: Mon, 10 Feb 2020 17:12:19 -0600
Subject: [PATCH] fix(metadata-explorer.ts): fix missing props from base class

---
 src/metadata-explorer.ts      | 8 +++++++-
 test/metadata-manager.test.ts | 9 ++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/metadata-explorer.ts b/src/metadata-explorer.ts
index 2f912ddca..ccb3b8c52 100644
--- a/src/metadata-explorer.ts
+++ b/src/metadata-explorer.ts
@@ -60,8 +60,14 @@ class MetadataManager {
     model: TModel,
     metadata: MetadataMapList<TModel>
   ) {
+    const existingMetadata = this._metadataMap.get(model) || [];
+    const existingProtoMetadata = Object.getPrototypeOf(model)
+      ? this._metadataMap.get(Object.getPrototypeOf(model)) || []
+      : [];
+
     this._metadataMap.set(model, [
-      ...(this._metadataMap.has(model) ? this.getMetadata(model) : []),
+      ...existingProtoMetadata,
+      ...existingMetadata,
       ...metadata,
     ]);
   }
diff --git a/test/metadata-manager.test.ts b/test/metadata-manager.test.ts
index 12477fcfa..15b0a2e34 100644
--- a/test/metadata-manager.test.ts
+++ b/test/metadata-manager.test.ts
@@ -2,6 +2,13 @@ import { AutoMap } from '../src';
 import { instantiate } from '../src/metadata-explorer';
 
 describe('MetadataManager', () => {
+  class Base {
+    @AutoMap()
+    createdAt!: Date;
+    @AutoMap()
+    updatedAt!: Date;
+  }
+
   class Address {
     @AutoMap()
     street!: string;
@@ -11,7 +18,7 @@ describe('MetadataManager', () => {
     state!: string;
   }
 
-  class User {
+  class User extends Base {
     @AutoMap()
     firstName!: string;
     @AutoMap()