Add foreign keys to the Mysql-scheme

diff --git a/modules/gmysqlbackend/enable-foreign-keys.mysql.sql b/modules/gmysqlbackend/enable-foreign-keys.mysql.sql
new file mode 100644 (file)
index 0000000..9ecdeb9
--- /dev/null
+++ b/modules/gmysqlbackend/enable-foreign-keys.mysql.sql
@@ -0,0 +1,4 @@
+ALTER TABLE records ADD CONSTRAINT `records_domain_id_ibfk` FOREIGN KEY (`domain_id`) REFERENCES `domains` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+ALTER TABLE comments ADD CONSTRAINT `comments_domain_id_ibfk` FOREIGN KEY (`domain_id`) REFERENCES `domains` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+ALTER TABLE domainmetadata ADD CONSTRAINT `domainmetadata_domain_id_ibfk` FOREIGN KEY (`domain_id`) REFERENCES `domains` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+ALTER TABLE cryptokeys ADD CONSTRAINT `cryptokeys_domain_id_ibfk` FOREIGN KEY (`domain_id`) REFERENCES `domains` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;