From b918eea6304f48b7f4edb71b333bc45db6bc9ea6 Mon Sep 17 00:00:00 2001
From: Salakar <mike.diarmid@gmail.com>
Date: Thu, 12 Apr 2018 12:38:28 +0100
Subject: [PATCH] [firestore] add support for
 `DocumentSnapshot.get('dot.notated.field.path')`

---
 lib/modules/firestore/DocumentSnapshot.js | 3 ++-
 lib/utils/index.js                        | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/modules/firestore/DocumentSnapshot.js b/lib/modules/firestore/DocumentSnapshot.js
index d7317e79..aae8dc7e 100644
--- a/lib/modules/firestore/DocumentSnapshot.js
+++ b/lib/modules/firestore/DocumentSnapshot.js
@@ -63,6 +63,7 @@ export default class DocumentSnapshot {
     if (fieldPath instanceof FieldPath) {
       return extractFieldPathData(this._data, fieldPath._segments);
     }
-    return this._data ? deepGet(this._data, fieldPath, '.') : undefined;
+
+    return deepGet(this._data, fieldPath, '.');
   }
 }
diff --git a/lib/utils/index.js b/lib/utils/index.js
index ca9f1973..dc539b14 100644
--- a/lib/utils/index.js
+++ b/lib/utils/index.js
@@ -25,6 +25,7 @@ export function deepGet(
   path: string,
   joiner?: string = '/'
 ): any {
+  if (!isObject(object)) return undefined;
   const keys = path.split(joiner);
 
   let i = 0;