From fc265a8e3a1c6b2f5098b6e9b8243492b706222f Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Wed, 17 Jul 2013 21:38:37 -0700
Subject: block duplicate channels

---
 boot.php             |  2 +-
 install/database.sql |  1 +
 install/update.php   | 11 ++++++++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/boot.php b/boot.php
index 9eb2bf3dd..af9fa6cfa 100755
--- a/boot.php
+++ b/boot.php
@@ -43,7 +43,7 @@ require_once('include/taxonomy.php');
 define ( 'RED_PLATFORM',            'Red Matrix' );
 define ( 'RED_VERSION',             trim(file_get_contents('version.inc')) . 'R');
 define ( 'ZOT_REVISION',            1     ); 
-define ( 'DB_UPDATE_VERSION',       1052  );
+define ( 'DB_UPDATE_VERSION',       1053  );
 
 define ( 'EOL',                    '<br />' . "\r\n"     );
 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
diff --git a/install/database.sql b/install/database.sql
index 2a31ce0cf..acafabde8 100644
--- a/install/database.sql
+++ b/install/database.sql
@@ -182,6 +182,7 @@ CREATE TABLE IF NOT EXISTS `channel` (
   `channel_r_pages` int(10) unsigned NOT NULL DEFAULT '128',
   `channel_w_pages` int(10) unsigned NOT NULL DEFAULT '128',
   PRIMARY KEY (`channel_id`),
+  UNIQUE KEY `channel_address_unique` (`channel_address`),
   KEY `channel_account_id` (`channel_account_id`),
   KEY `channel_primary` (`channel_primary`),
   KEY `channel_name` (`channel_name`),
diff --git a/install/update.php b/install/update.php
index 160d94a4d..8bc629f71 100644
--- a/install/update.php
+++ b/install/update.php
@@ -1,6 +1,6 @@
 <?php
 
-define( 'UPDATE_VERSION' , 1052 );
+define( 'UPDATE_VERSION' , 1053 );
 
 /**
  *
@@ -626,3 +626,12 @@ function update_r1051() {
 		return UPDATE_SUCCESS;
 	return UPDATE_FAILED;
 }
+
+
+function update_r1052() {
+	$r = q("ALTER TABLE `channel` ADD UNIQUE (`channel_address`) ");
+	if($r)
+		return UPDATE_SUCCESS;
+	return UPDATE_FAILED;
+}
+
-- 
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