From 22debcf27a870b946daf57565af32cf4aa73f5d9 Mon Sep 17 00:00:00 2001
From: Madhura Jayaratne <madhura.cj@gmail.com>
Date: Fri, 19 Feb 2016 06:22:44 +1100
Subject: [PATCH] Update corresponding build method

Signed-off-by: Madhura Jayaratne <madhura.cj@gmail.com>
---
 src/Components/JoinKeyword.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Components/JoinKeyword.php b/src/Components/JoinKeyword.php
index 9ec681b1b..7546b5676 100644
--- a/src/Components/JoinKeyword.php
+++ b/src/Components/JoinKeyword.php
@@ -179,8 +179,10 @@ public static function build($component, array $options = array())
     {
         $ret = array();
         foreach ($component as $c) {
-            $ret[] = array_search($c->type, static::$JOINS) . ' '
-                . $c->expr . ' ON ' . Condition::build($c->on);
+            $ret[] = array_search($c->type, static::$JOINS) . ' ' . $c->expr
+                . (! empty($c->on)
+                    ? ' ON ' . Condition::build($c->on)
+                    : ' USING ' . ArrayObj::build($c->using));
         }
         return implode(' ', $ret);
     }