[Koha-patches] [PATCH] [REVISED] Bug 5642: Item field serial enumeration (enumchron) should be longer

[Marcel de Rooy]

Field enumchron in items table is now varchar(80).
We have records that need a much longer field, even up to 400 or 500 chars.
I suggest to change its type to TEXT (variable length with max 64K; tinytext
goes up to 255 chars and is just too short).
Mediumtext or longtext are not needed; as a side note these types are used in
the items table for e.g. booksellerid and more_subfields_xml..

Revised original patch thanks to Ian Walls: update kohatructure.sql. Copied the change in deleteditems as well.
---
 installer/data/mysql/kohastructure.sql |    4 ++--
 installer/data/mysql/updatedatabase.pl |    8 ++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/installer/data/mysql/kohastructure.sql b/installer/data/mysql/kohastructure.sql
index 5e0c6b6..6d7137c 100644
--- a/installer/data/mysql/kohastructure.sql
+++ b/installer/data/mysql/kohastructure.sql
@@ -750,7 +750,7 @@ CREATE TABLE `deleteditems` (
   `uri` varchar(255) default NULL,
   `itype` varchar(10) default NULL,
   `more_subfields_xml` longtext default NULL,
-  `enumchron` varchar(80) default NULL,
+  `enumchron` text default NULL,
   `copynumber` varchar(32) default NULL,
   `stocknumber` varchar(32) default NULL,
   `marc` longblob,
@@ -1015,7 +1015,7 @@ CREATE TABLE `items` (
   `uri` varchar(255) default NULL,
   `itype` varchar(10) default NULL,
   `more_subfields_xml` longtext default NULL,
-  `enumchron` varchar(80) default NULL,
+  `enumchron` text default NULL,
   `copynumber` varchar(32) default NULL,
   `stocknumber` varchar(32) default NULL,
   PRIMARY KEY  (`itemnumber`),
diff --git a/installer/data/mysql/updatedatabase.pl b/installer/data/mysql/updatedatabase.pl
index 5f3310b..e21dca4 100755
--- a/installer/data/mysql/updatedatabase.pl
+++ b/installer/data/mysql/updatedatabase.pl
@@ -3944,6 +3944,14 @@ if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
     SetVersion ($DBversion);
 }
 
+$DBversion = "3.03.00.XXX";
+if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
+    $dbh->do("ALTER TABLE items MODIFY enumchron TEXT");
+    $dbh->do("ALTER TABLE deleteditems MODIFY enumchron TEXT");
+    print "Upgrade to $DBversion done (bug 5642: longer serial enumeration)\n";
+    SetVersion ($DBversion);
+}
+
 =head1 FUNCTIONS
 
 =head2 DropAllForeignKeys($table)
-- 
1.6.0.6