From 87b94ba48604b6be709dc242d0261f3723384b74 Mon Sep 17 00:00:00 2001
From: James Sweet <james.sweet88@googlemail.com>
Date: Tue, 13 Oct 2015 18:31:32 -0400
Subject: [PATCH] Fixed #115: Added code in the find method to search for
 nested configuration parameters

---
 viper.go      | 14 ++++++++++++++
 viper_test.go |  9 +++++++++
 2 files changed, 23 insertions(+)

diff --git a/viper.go b/viper.go
index 5afed24..d9c5e67 100644
--- a/viper.go
+++ b/viper.go
@@ -657,6 +657,20 @@ func (v *Viper) find(key string) interface{} {
 		return val
 	}
 
+	// Test for nested config parameter
+	if strings.Contains(key, v.keyDelim) {
+		path := strings.Split(key, v.keyDelim)
+
+		source := v.find(path[0])
+		if source != nil {
+			if reflect.TypeOf(source).Kind() == reflect.Map {
+				val := v.searchMap(cast.ToStringMap(source), path[1:])
+				jww.TRACE.Println(key, "found in nested config:", val)
+				return val
+			}
+		}
+	}
+
 	val, exists = v.kvstore[key]
 	if exists {
 		jww.TRACE.Println(key, "found in key/value store:", val)
diff --git a/viper_test.go b/viper_test.go
index 6b9db6e..d9aae00 100644
--- a/viper_test.go
+++ b/viper_test.go
@@ -199,6 +199,15 @@ func TestBasics(t *testing.T) {
 func TestDefault(t *testing.T) {
 	SetDefault("age", 45)
 	assert.Equal(t, 45, Get("age"))
+
+	SetDefault("clothing.jacket", "slacks")
+	assert.Equal(t, "slacks", Get("clothing.jacket"))
+
+	SetConfigType("yaml")
+	err := ReadConfig(bytes.NewBuffer(yamlExample))
+
+	assert.NoError(t, err)
+	assert.Equal(t, "leather", Get("clothing.jacket"))
 }
 
 func TestUnmarshalling(t *testing.T) {