From 72a2e368c71cad39187d10f6ddaa69d6e8f4a8ba Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Sat, 12 Apr 2014 18:58:08 +0200
Subject: Add foreign keys to database

Changing the referrer value for the root admin from 0 to NULL to make
the foreign key check work.

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 application/migrations/012_add_constraints.php | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 application/migrations/012_add_constraints.php

(limited to 'application/migrations/012_add_constraints.php')

diff --git a/application/migrations/012_add_constraints.php b/application/migrations/012_add_constraints.php
new file mode 100644
index 000000000..e0116ea05
--- /dev/null
+++ b/application/migrations/012_add_constraints.php
@@ -0,0 +1,29 @@
+<?php
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class Migration_add_constraints extends CI_Migration {
+
+	public function up()
+	{
+		$this->db->query("UPDATE `users` SET `referrer` = NULL where `referrer` = 0;");
+		$this->db->query("ALTER TABLE `apikeys` ADD FOREIGN KEY (`user`)
+			REFERENCES `filebin`.`users`(`id`) ON DELETE CASCADE ON UPDATE RESTRICT;");
+		$this->db->query("ALTER TABLE `files` ADD FOREIGN KEY (`user`)
+			REFERENCES `filebin`.`users`(`id`) ON DELETE RESTRICT ON UPDATE RESTRICT;");
+		$this->db->query("ALTER TABLE `profiles` ADD FOREIGN KEY (`user`)
+			REFERENCES `filebin`.`users`(`id`) ON DELETE CASCADE ON UPDATE RESTRICT;");
+		$this->db->query("ALTER TABLE `actions` ADD FOREIGN KEY (`user`)
+			REFERENCES `filebin`.`users`(`id`) ON DELETE CASCADE ON UPDATE RESTRICT;");
+
+		$this->db->query("ALTER TABLE `users` ADD INDEX(`referrer`);");
+		$this->db->query("ALTER TABLE `users` CHANGE `referrer` `referrer`
+			INT(8) UNSIGNED NULL;");
+		$this->db->query("ALTER TABLE `users` ADD FOREIGN KEY (`referrer`)
+			REFERENCES `filebin`.`users`(`id`) ON DELETE RESTRICT ON UPDATE RESTRICT;");
+	}
+
+	public function down()
+	{
+		show_error("downgrade not supported");
+	}
+}
-- 
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