Fixes #5275 DNS Wizard does not add new zone.

Author: Till Brehm

install/sql/incremental/upd_dev_collection.sql

@@ -78,6 +78,6 @@ INSERT IGNORE INTO `dns_ssl_ca` (`id`, `sys_userid`, `sys_groupid`, `sys_perm_us
 (NULL, 1, 1, 'riud', 'riud', '', 'Y', 'WISeKey', 'wisekey.com', 'Y', '', 0),
 (NULL, 1, 1, 'riud', 'riud', '', 'Y', 'WoSign', 'wosign.com', 'Y', '', 0);
 
-ALTER TABLE `dns_soa` CHANGE `xfer` `xfer` TEXT NOT NULL DEFAULT '';
-ALTER TABLE `dns_soa` CHANGE `also_notify` `also_notify` TEXT NOT NULL DEFAULT '';
-ALTER TABLE `dns_slave` CHANGE `xfer` `xfer` TEXT NOT NULL DEFAULT '';
+ALTER TABLE `dns_soa` CHANGE `xfer` `xfer` TEXT NULL;
+ALTER TABLE `dns_soa` CHANGE `also_notify` `also_notify` TEXT NULL;
+ALTER TABLE `dns_slave` CHANGE `xfer` `xfer` TEXT NULL;

install/sql/ispconfig3.sql

@@ -516,7 +516,7 @@ CREATE TABLE `dns_slave` (
   `origin` varchar(255) NOT NULL DEFAULT '',
   `ns` varchar(255) NOT NULL DEFAULT '',
   `active` enum('N','Y') NOT NULL DEFAULT 'N',
-  `xfer` TEXT NOT NULL DEFAULT '',
+  `xfer` TEXT NULL,
   PRIMARY KEY  (`id`),
   UNIQUE KEY `slave` (`origin`,`server_id`),
   KEY `active` (`active`)
@@ -620,8 +620,8 @@ CREATE TABLE `dns_soa` (
   `minimum` int(11) unsigned NOT NULL default '3600',
   `ttl` int(11) unsigned NOT NULL default '3600',
   `active` enum('N','Y') NOT NULL DEFAULT 'N',
-  `xfer` TEXT NOT NULL DEFAULT '',
-  `also_notify` TEXT NOT NULL DEFAULT '',
+  `xfer` TEXT NULL,
+  `also_notify` TEXT NULL,
   `update_acl` varchar(255) default NULL,
   `dnssec_initialized` ENUM('Y','N') NOT NULL DEFAULT 'N',
   `dnssec_wanted` ENUM('Y','N') NOT NULL DEFAULT 'N',