From 2cffe106b895e08f25b576e8b30226465ac69a37 Mon Sep 17 00:00:00 2001
From: Ariel Ponce <ariponce09@gmail.com>
Date: Fri, 6 Mar 2015 11:51:05 +0100
Subject: [PATCH] Allow to pass 0 as column value in List widgets

**Problem**: When overriden the columns value, if we pass 0 or '0', the condition is not met and therefore the column has a null value.

**Solution**: Check for not null in the condtion
---
 modules/backend/widgets/Lists.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/backend/widgets/Lists.php b/modules/backend/widgets/Lists.php
index a43f9eaa7..a35dadc4f 100644
--- a/modules/backend/widgets/Lists.php
+++ b/modules/backend/widgets/Lists.php
@@ -763,11 +763,11 @@ class Lists extends WidgetBase
         /*
          * Extensibility
          */
-        if ($response = Event::fire('backend.list.overrideColumnValue', [$this, $record, $column, $value], true)) {
+        if (!is_null($response = Event::fire('backend.list.overrideColumnValue', [$this, $record, $column, $value], true))) {
             $value = $response;
         }
 
-        if ($response = $this->fireEvent('list.overrideColumnValue', [$record, $column, $value], true)) {
+        if (!is_null($response = $this->fireEvent('list.overrideColumnValue', [$record, $column, $value], true))) {
             $value = $response;
         }