From 469ab56b64ba98d64cbed6b6805c2c5de50bf419 Mon Sep 17 00:00:00 2001
From: Flavio Copes <copesc@gmail.com>
Date: Fri, 4 Sep 2015 14:59:41 +0200
Subject: [PATCH] Add a string Twig function that renders arrays as
 json_encoded strings, and just outputs other values (used by the form plugin)

---
 system/src/Grav/Common/Twig/TwigExtension.php | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/system/src/Grav/Common/Twig/TwigExtension.php b/system/src/Grav/Common/Twig/TwigExtension.php
index fd6653340..57c646089 100644
--- a/system/src/Grav/Common/Twig/TwigExtension.php
+++ b/system/src/Grav/Common/Twig/TwigExtension.php
@@ -84,6 +84,7 @@ class TwigExtension extends \Twig_Extension
             new \Twig_SimpleFunction('gist', [$this, 'gistFunc']),
             new \Twig_simpleFunction('random_string', [$this, 'randomStringFunc']),
             new \Twig_SimpleFunction('array', [$this, 'arrayFunc']),
+            new \Twig_SimpleFunction('string', [$this, 'stringFunc']),
             new \Twig_simpleFunction('t', [$this, 'translate']),
             new \Twig_simpleFunction('ta', [$this, 'translateArray'])
         ];
@@ -414,7 +415,7 @@ class TwigExtension extends \Twig_Extension
 
     public function translate()
     {
-         return $this->grav['language']->translate(func_get_args());
+        return $this->grav['language']->translate(func_get_args());
     }
 
     public function translateArray($key, $index, $lang = null)
@@ -531,6 +532,15 @@ class TwigExtension extends \Twig_Extension
         return (array) $value;
     }
 
+    public function stringFunc($value)
+    {
+        if (is_array($value)) { //format the array as a string
+            return json_encode($value);
+        } else {
+            return $value;
+        }
+    }
+
     public function translateFunc()
     {
         return $this->grav['language']->translate(func_get_args());