[horde] switching to UTF8 database

Simon Brereton simon.brereton at buongiorno.com
Tue Feb 7 18:44:14 UTC 2012

2012/2/7 Vilius Šumskas <vilius at lnk.lt>:
> Sveiki,
> Tuesday, February 7, 2012, 8:17:28 PM, you wrote:
>> On Tue, 7 Feb 2012, Vilius Šumskas wrote:
>>> Sveiki,
>>> Tuesday, February 7, 2012, 12:34:57 AM, you wrote:
>>>> I'm running Horde v3.3.12 (I know, upgrade to Horde 4 is on my todo list)
>>>> with MySQL v5.1.  My Horde database is an old install that has been
>>>> upgraded many times.
>>>> The character set in horde/config/conf.php is:
>>>> $conf['sql']['charset'] = 'iso-8859-1';
>>>> and my collation on the database and tables in MySQL are set to
>>>> "latin1_swedish_ci".
>>>> I'd like to switch to UTF8.  Are these steps sufficient:
>>>> 1. Alter MySQL database and table collations to "utf8_unicode_ci"
>>>> 2. Set $conf['sql']['charset'] = 'utf-8';
>>> It  depends  what data is stored. See my older messages regarding that
>>> on this mailing list. Or was it on dev at lists.horde.org?
>> I searched via Google but nothing obvious turned up.  If you have a
>> timeframe and a listname, I'd be happy to go search the archives.
> Mainly these treads:
> http://lists.horde.org/archives/dev/Week-of-Mon-20110718/026367.html
> http://lists.horde.org/archives/dev/Week-of-Mon-20101213/025567.html
> You  can  also  search  the  net  for  general tips and tricks how to
> convert   data/charset   in   MySQL.   This  is really related more to
> MySQL itself than to Horde.

I don't know if this helps - but when I was migrating to Horde4 I
coupled it with a change in data/charset encoding.  Since I wanted to
use the H3 db, what I did was:

Convert to UTF8:
mysql -u root -p -B -N  -u root -p -v --execute="select CONCAT('alter
COLLATE utf8_general_ci;') from information_schema.TABLES WHERE
TABLE_SCHEMA != 'information_schema';" > alter.sql

vim alter.sql
remove any mysql/mysqlbkup table lines

Apply the new Character Set
mysql -u root -p -v < alter.sql
/etc/init.d/mysql stop
/etc/init.d/mysql start

Then I installed Horde4 and pointed it to the same DB (actually a
copy, just in case things went fubar) and then after configuring each
Horde application (IMP, Turba, etc,) I just ran the update-schema
action from the Admin panel.


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