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>

1 files changed, 29 insertions, 0 deletions

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");
+	}
+}