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<?php
/**
* Kronolith_Storage:: defines an API for storing free/busy
* information.
*
* $Horde: kronolith/lib/Storage/sql.php,v 1.7.10.6 2007/12/20 14:12:38 jan Exp $
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @package Kronolith
*/
class Kronolith_Storage_sql extends Kronolith_Storage {
/**
* Handle for the current database connection, used for reading.
*
* @var DB
*/
var $_db;
/**
* Handle for the current database connection, used for writing. Defaults
* to the same handle as $_db if a separate write database is not required.
*
* @var DB
*/
var $_write_db;
/**
* Hash containing connection parameters.
*
* @var array
*/
var $_params = array();
/**
* Constructs a new Kronolith_Storage SQL instance.
*
* @param array $params A hash containing connection parameters.
*/
function Kronolith_Storage_sql($user, $params = array())
{
$this->_user = $user;
/* Use defaults where needed. */
$this->_params = $params;
$this->_params['table'] = isset($params['table']) ? $params['table'] : 'kronolith_storage';
}
/**
* Connect to the database
*
* @return boolean True on success or PEAR_Error on failure.
*/
function initialize()
{
Horde::assertDriverConfig($this->_params, 'storage',
array('phptype'),
'kronolith storage SQL');
if (!isset($this->_params['database'])) {
$this->_params['database'] = '';
}
if (!isset($this->_params['username'])) {
$this->_params['username'] = '';
}
if (!isset($this->_params['hostspec'])) {
$this->_params['hostspec'] = '';
}
/* Connect to the SQL server using the supplied parameters. */
include_once 'DB.php';
$this->_write_db = &DB::connect($this->_params,
array('persistent' => !empty($this->_params['persistent'])));
if (is_a($this->_write_db, 'PEAR_Error')) {
return PEAR::raiseError(_("Unable to connect to SQL server."));
}
// Set DB portability options.
switch ($this->_write_db->phptype) {
case 'mssql':
$this->_write_db->setOption('portability', DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_ERRORS | DB_PORTABILITY_RTRIM);
break;
default:
$this->_write_db->setOption('portability', DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_ERRORS);
}
/* Check if we need to set up the read DB connection
* seperately. */
if (!empty($this->_params['splitread'])) {
$params = array_merge($this->_params, $this->_params['read']);
$this->_db = &DB::connect($params,
array('persistent' => !empty($params['persistent'])));
if (is_a($this->_db, 'PEAR_Error')) {
return $this->_db;
}
// Set DB portability options.
switch ($this->_db->phptype) {
case 'mssql':
$this->_db->setOption('portability', DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_ERRORS | DB_PORTABILITY_RTRIM);
break;
default:
$this->_db->setOption('portability', DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_ERRORS);
}
} else {
/* Default to the same DB handle for the writer too. */
$this->_db =& $this->_write_db;
}
return true;
}
/**
* Search for a user's free/busy information.
*
* @param string $email The email address to lookup
* @param boolean $private_only (optional) Only return free/busy
* information owned by this used.
*
* @return object Horde_iCalendar_vFreebusy on success
* PEAR_Error on error or not found
*/
function search($email, $private_only = false)
{
/* Build the SQL query. */
$query = sprintf('SELECT vfb_serialized FROM %s WHERE vfb_email=? AND (vfb_owner=?',
$this->_params['table']);
$values = array($email, $this->_user);
if ($private_only) {
$query .= ')';
} else {
$query .= " OR vfb_owner='')";
}
/* Log the query at debug level. */
Horde::logMessage(sprintf('SQL search by %s: query = "%s"',
Auth::getAuth(), $query),
__FILE__, __LINE__, PEAR_LOG_DEBUG);
/* Execute the query. */
$result = $this->_db->query($query, $values);
if (!is_a($result, 'PEAR_Error')) {
$row = $result->fetchRow(DB_GETMODE_ASSOC);
$result->free();
if (is_array($row)) {
/* Retrieve Freebusy object. TODO: check for multiple
* results and merge them into one and return. */
require_once 'Horde/Serialize.php';
$vfb = Horde_Serialize::unserialize($row['vfb_serialized'], SERIALIZE_BASIC);
return $vfb;
}
}
return PEAR::raiseError(_("Not found"), KRONOLITH_ERROR_FB_NOT_FOUND);
}
/**
* Store the freebusy information for a given email address.
*
* @param string $email The email address to store fb info for.
* @param Horde_iCalendar_vFreebusy $vfb TODO
* @param boolean $private_only (optional) TODO
*
* @return boolean True on success
* PEAR_Error on error or not found
*/
function store($email, $vfb, $public = false)
{
$owner = (!$public) ? $this->_user : '';
/* Build the SQL query. */
require_once 'Horde/Serialize.php';
$query = sprintf('INSERT INTO %s (vfb_owner, vfb_email, vfb_serialized) VALUES (?, ?, ?)',
$this->_params['table']);
$values = array($owner, $email, Horde_Serialize::serialize($vfb, SERIALIZE_BASIC));
/* Log the query at debug level. */
Horde::logMessage(sprintf('SQL insert by %s: query = "%s"',
Auth::getAuth(), $query),
__FILE__, __LINE__, PEAR_LOG_DEBUG);
/* Execute the query. */
return $this->_write_db->query($query, $values);
}
}
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