From 5a2323346d2f0790ebfa0df896e4309b27cf64d3 Mon Sep 17 00:00:00 2001
From: Thiago Talma <thiago@thiagomt.com>
Date: Thu, 30 Jan 2014 17:01:26 -0200
Subject: [PATCH] Test if value is instance of \Closure

---
 framework/grid/DataColumn.php | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/framework/grid/DataColumn.php b/framework/grid/DataColumn.php
index 5c9500e..4f710b4 100644
--- a/framework/grid/DataColumn.php
+++ b/framework/grid/DataColumn.php
@@ -141,11 +141,11 @@ class DataColumn extends Column
 	protected function renderDataCellContent($model, $key, $index)
 	{
 		if ($this->value !== null) {
-		if (is_callable($this->value)) {
-			$value = call_user_func($this->value, $model, $index, $this);
-		} else {
-			$value = ArrayHelper::getValue($model, $this->value);
-		}
+			if ($this->value instanceof \Closure) {
+				$value = call_user_func($this->value, $model, $index, $this);
+			} else {
+				$value = ArrayHelper::getValue($model, $this->value);
+			}
 		} elseif ($this->content === null && $this->attribute !== null) {
 			$value = ArrayHelper::getValue($model, $this->attribute);
 		} else {