[kronolith] DB::isWarning not defined

[Paolo Cavicchini]

Hello,
after the kronolith installation, I'm not able to open kronolith itself.
Horde gives me an error about a call to isWarning() function (not defined,
it seems...).
So I edited the file /var/www/html/mail/horde/kronolith/lib/Driver/sql.php
and commented out the isWarning() call (but I've leaved the isError() call).

Now it works fine.
With the prior version of Horde, it was working without any intervation.

>From the "/var/www/html/mail/horde/kronolith/lib/Driver/sql.php" file:

/* Connect to the SQL server using the supplied parameters. */
$this->db = &DB::connect($this->params, true);
/*if (DB::isError($this->db) || DB::isWarning($this->db)) {   <--- original,
commented out */
if (DB::isError($this->db)) {
    Horde::fatal($this->db, __FILE__, __LINE__);
}

Could anyone give me any suggestion? I would like to restore the original
code...

Paolo
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