+function upgrade_to_10(){
+ echo " upgrade database from version 0.9 to version 0.10"
+ echo " change types at 'ports'"
+ echo "ALTER TABLE ports CHANGE COLUMN type type ENUM('instance:bridge','instance:data','external','instance:ovs','controller:ovs') NOT NULL DEFAULT 'instance:bridge' AFTER status;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) VALUES (10, '0.10', '0.5.2', 'change ports type, adding instance:ovs', '2017-02-01');"| $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}
+function downgrade_from_10(){
+ echo " downgrade database from version 0.10 to version 0.9"
+ echo " change back types at 'ports'"
+ echo "ALTER TABLE ports CHANGE COLUMN type type ENUM('instance:bridge','instance:data','external') NOT NULL DEFAULT 'instance:bridge' AFTER status;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "DELETE FROM schema_version WHERE version_int = '10';" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}
+
+function upgrade_to_11(){
+ echo " upgrade database from version 0.10 to version 0.11"
+ echo " Add gateway_ip colum to 'nets'"
+ echo "ALTER TABLE nets ADD COLUMN gateway_ip VARCHAR(64) NULL DEFAULT NULL AFTER dhcp_last_ip;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) VALUES (11, '0.11', '0.5.4', 'Add gateway_ip colum to nets', '2017-02-13');"| $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}
+function downgrade_from_11(){
+ echo " downgrade database from version 0.11 to version 0.10"
+ echo " Delete gateway_ip colum from 'nets'"
+ echo "ALTER TABLE nets DROP COLUMN gateway_ip;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "DELETE FROM schema_version WHERE version_int = '11';" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}