From 2e86ad317ebbfec3768c6589061575bf4c7cc995 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Mon, 14 Jun 2010 12:26:32 +0000
Subject: - Patch #826668 by Damien Tournoud: db_add_field() will not accept
 'foreign keys' even though it is part of schema api.

---
 includes/database/mysql/schema.inc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'includes/database/mysql/schema.inc')

diff --git a/includes/database/mysql/schema.inc b/includes/database/mysql/schema.inc
index 8a9d0176e..6a173d4fe 100644
--- a/includes/database/mysql/schema.inc
+++ b/includes/database/mysql/schema.inc
@@ -316,8 +316,8 @@ class DatabaseSchema_mysql extends DatabaseSchema {
     }
     $query = 'ALTER TABLE {' . $table . '} ADD ';
     $query .= $this->createFieldSql($field, $this->processField($spec));
-    if (count($keys_new)) {
-      $query .= ', ADD ' . implode(', ADD ', $this->createKeysSql($keys_new));
+    if ($keys_sql = $this->createKeysSql($keys_new)) {
+      $query .= ', ADD ' . implode(', ADD ', $keys_sql);
     }
     $this->connection->query($query);
     if (isset($spec['initial'])) {
@@ -439,8 +439,8 @@ class DatabaseSchema_mysql extends DatabaseSchema {
     }
 
     $sql = 'ALTER TABLE {' . $table . '} CHANGE `' . $field . '` ' . $this->createFieldSql($field_new, $this->processField($spec));
-    if (count($keys_new)) {
-      $sql .= ', ADD ' . implode(', ADD ', $this->createKeysSql($keys_new));
+    if ($keys_sql = $this->createKeysSql($keys_new)) {
+      $sql .= ', ADD ' . implode(', ADD ', $keys_sql);
     }
     $this->connection->query($sql);
   }
-- 
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