From 078fad49e2508759aa33995eb0a4464ce0a63595 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Erik=20Pedersen?=
 <bjorn.erik.pedersen@gmail.com>
Date: Mon, 12 Oct 2015 05:51:04 +0200
Subject: [PATCH] Add Param(key) to Node and Page

This  is a convenience method to do lookups in Page's (Page only)  and Site's Params map (Page and Node), in that order.

Fixes #1462
---
 hugolib/node.go | 12 ++++++++++++
 hugolib/page.go | 15 +++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/hugolib/node.go b/hugolib/node.go
index f8f8df594..dcbf0d146 100644
--- a/hugolib/node.go
+++ b/hugolib/node.go
@@ -14,6 +14,7 @@
 package hugolib
 
 import (
+	"github.com/spf13/cast"
 	"html/template"
 	"sync"
 	"time"
@@ -86,6 +87,17 @@ func (n *Node) IsMenuCurrent(menuID string, inme *MenuEntry) bool {
 	return false
 }
 
+// Param is a convenience method to do lookups in Site's Params map.
+//
+// This method is also implemented on Page.
+func (n *Node) Param(key interface{}) (interface{}, error) {
+	keyStr, err := cast.ToStringE(key)
+	if err != nil {
+		return nil, err
+	}
+	return n.Site.Params[keyStr], err
+}
+
 func (n *Node) Hugo() *HugoInfo {
 	return hugoInfo
 }
diff --git a/hugolib/page.go b/hugolib/page.go
index e08e764af..2979822c3 100644
--- a/hugolib/page.go
+++ b/hugolib/page.go
@@ -132,6 +132,21 @@ func (p *Page) IsPage() bool {
 	return true
 }
 
+// Param is a convenience method to do lookups in Page's and Site's Params map,
+// in that order.
+//
+// This method is also implemented on Node.
+func (p *Page) Param(key interface{}) (interface{}, error) {
+	keyStr, err := cast.ToStringE(key)
+	if err != nil {
+		return nil, err
+	}
+	if val, ok := p.Params[keyStr]; ok {
+		return val, nil
+	}
+	return p.Site.Params[keyStr], nil
+}
+
 func (p *Page) Author() Author {
 	authors := p.Authors()