Roundcube is most often used with MySQL on bigger hosts. It uses the MDB2 PHP
library. The package should suggest php-mdb2-driver-mysql and/or
php-mdb2-driver-pgsql, otherwise it does not work straight out of the box,
and only a quite misleading error message ("Could not establish connection
to the database") is displayed.

This would be a good improvement, especially since we have dbconfig proposed
as an option.

OoO Peu  avant le début de  l'après-midi du jeudi 13  janvier 2011, vers
13:52, Chloé Desoutter <chloe.desoutter@gmail.com> disait :

roundcube-mysql already depends on php-mdb2-driver-mysql.

2011/1/13 Vincent Bernat <bernat@debian.org>
Wouldn't it be adapted, since roundcube depends on either mysql,
postgresql or sqlite to make roundcube a virtual or so package
provided by roundcube-mysql, roundcube-pgsql and roundcube-sqlite, and
depending on roundcube-core and a new roundcube-common ? This way, a
Roundcube setup would work straight out of the box and we users would
have to make a choice at setup.

Since a database backend is absolutely necessary for Roundcube, this
seems to be a better option. What's your opinion ?

OoO Pendant  le journal télévisé du  jeudi 13 janvier  2011, vers 20:46,
Chloé Desoutter <chloe.desoutter@gmail.com> disait :

Currently,  roundcube depends  on roundcube-sqlite  |  roundcube-mysql |
roundcube-pgsql.  roundcube-{backend} does  not  pull roundcube  because
there  would  be  a  circular  dependency and  this  is  considered  bad
practice.

Your solution would be to turn roundcube into a virtual package provided
by roundcube-{backend}. Therefore, installing roundcube will pull one of
the roundcube-{backend}.  I don't see  any improvement over  the current
solution.

Maybe, the confusion is that  the user type "apt-get install roundcube",
then is asked whetever he wants to use "sqlite", "mysql" or "postgresql"
even if  "roundcube-sqlite" was pulled  and the system does  not contain
the  appropriate dependencies for  the other  two. We  did not  find any
simple  solution  to  this  problem.  Maybe,  roundcube  could  suggests
php-mdb2-driver-pgsql   and  php-mdb2-driver-mysql.   Those   are  small
dependencies.  This way, a  user using  "apt-get install  roundcube" and
having a  working installation of  MySQL (and therefore a  working mysql
client) but not MDB2 driver for MySQL will get a functional installation
even if he  did not notice that there is  a roundcube-mysql package that
should be used in his case.