egroupware/emailadmin/inc/class.emailadmin_notifications.inc.php

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2015-01-21 20:49:09 +01:00
<?php
/**
* EGroupware EMailAdmin: Mail account folders to notify user about arriving mail
*
* @link http://www.stylite.de
* @package emailadmin
* @author Ralf Becker <rb@stylite.de>
* @author Stylite AG <info@stylite.de>
* @copyright (c) 2014 by Ralf Becker <rb@stylite.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
/**
* Mail account folders to notify user about arriving mail
*/
class emailadmin_notifications
{
const APP = 'emailadmin';
const TABLE = 'egw_ea_notifications';
/**
* Reference to global db object
*
* @var egw_db
*/
static protected $db;
/**
* Cache for credentials to minimize database access
*
* @var array
*/
protected static $cache = array();
/**
* Read credentials for a given mail account
*
* @param int $acc_id
* @param int|array $account_id=null default use current user or all (in that order)
* @param boolean $return_empty_marker=false should we return null
* @return array with values for "notify_folders", "notify_use_default"
*/
public static function read($acc_id, $account_id=null, $return_empty_marker=false)
{
if (is_null($account_id))
{
$account_id = array(0, $GLOBALS['egw_info']['user']['account_id']);
}
// check cache, if nothing found, query database
// check assumes always same accounts (eg. 0=all plus own account_id) are asked
if (!isset(self::$cache[$acc_id]) ||
!($rows = array_intersect_key(self::$cache[$acc_id], array_flip((array)$account_id))))
{
$rows = self::$db->select(self::TABLE, '*', array(
'acc_id' => $acc_id,
'account_id' => $account_id,
), __LINE__, __FILE__, false, '', self::APP);
//error_log(__METHOD__."($acc_id, ".array2string($account_id).") nothing in cache");
}
$account_specific = 0;
foreach($rows as $row)
{
if ($row['account_id'])
{
$account_specific = $row['account_id'];
}
// update cache (only if we have database-iterator)
if (!is_array($rows))
{
self::$cache[$acc_id][$row['account_id']][] = $row['notif_folder'];
}
}
$folders = (array)self::$cache[$acc_id][$account_specific];
if (!$return_empty_marker && $folders == array(null)) $folders = array();
$result = array(
'notify_folders' => $folders,
'notify_account_id' => $account_specific,
);
//error_log(__METHOD__."($acc_id, ".array2string($account_id).") returning ".array2string($result));
return $result;
}
/**
* Write notification folders
*
* @param int $acc_id id of account
* @param int $account_id if of user-account for whom folders are or 0 for default
* @param array $folders folders to store
* @return int number of changed rows
*/
public static function write($acc_id, $account_id, array $folders)
{
if (!is_numeric($account_id) || !($account_id >= 0))
{
return 0; // nothing to save, happens eg. in setup
}
if ($account_id && !$folders && ($default = self::read($acc_id, 0)) && $default['notify_folders'])
{
$folders[] = null; // we need to write a marker, that user wants no notifications!
}
$old = self::read($acc_id, $account_id, true); // true = return empty marker
if ($account_id && !$old['notify_account_id']) $old['notify_folders'] = array(); // ignore returned default
$changed = 0;
// insert newly added ones
foreach(array_diff($folders, $old['notify_folders']) as $folder)
{
self::$db->insert(self::TABLE, array(
'acc_id' => $acc_id,
'account_id' => $account_id,
'notif_folder' => $folder,
), false, __LINE__, __FILE__, self::APP);
$changed += self::$db->affected_rows();
}
// delete removed ones
if (($to_delete = array_diff($old['notify_folders'], $folders)))
{
self::$db->delete(self::TABLE, array(
'acc_id' => $acc_id,
'account_id' => $account_id,
'notif_folder' => $to_delete,
), __LINE__, __FILE__, self::APP);
$changed += self::$db->affected_rows();
}
// update cache
self::$cache[$acc_id][(int)$account_id] = $folders;
//error_log(__METHOD__."(acc_id=$acc_id, account_id=".array2string($account_id).", folders=".array2string($folders).") returning $changed");
return $changed;
}
/**
* Delete credentials from database
*
* @param int $acc_id
* @param int|array $account_id=null
* @return int number of rows deleted
*/
public static function delete($acc_id, $account_id=null)
{
if (!($acc_id > 0) && !isset($account_id))
{
throw new egw_exception_wrong_parameter(__METHOD__."() no acc_id AND no account_id parameter!");
}
$where = array();
if ($acc_id > 0) $where['acc_id'] = $acc_id;
if (isset($account_id)) $where['account_id'] = $account_id;
self::$db->delete(self::TABLE, $where, __LINE__, __FILE__, self::APP);
// invalidate cache: we allways unset everything about an account to simplify cache handling
foreach($acc_id > 0 ? (array)$acc_id : array_keys(self::$cache) as $acc_id)
{
unset(self::$cache[$acc_id]);
}
$ret = self::$db->affected_rows();
//error_log(__METHOD__."($acc_id, ".array2string($account_id).", $type) affected $ret rows");
return $ret;
}
/**
* Init our static properties
*/
static public function init_static()
{
self::$db = isset($GLOBALS['egw_setup']) ? $GLOBALS['egw_setup']->db : $GLOBALS['egw']->db;
}
}
emailadmin_notifications::init_static();