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kolab_storage_cache_configuration.php
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kolab_storage_cache_configuration.php
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<?php
/**
* Kolab storage cache class for configuration objects
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2013, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class kolab_storage_cache_configuration extends kolab_storage_cache
{
protected $extra_cols = array('type');
/**
* Helper method to convert the given Kolab object into a dataset to be written to cache
*
* @override
*/
protected function _serialize($object)
{
$this->set_data_props($object['type']);
$sql_data = parent::_serialize($object);
$sql_data['type'] = $object['type'];
return $sql_data;
}
/**
* Helper method to convert database record to the given Kolab object
*
* @override
*/
protected function _unserialize($sql_arr)
{
$this->set_data_props($sql_arr['type']);
return parent::_unserialize($sql_arr);
}
/**
* Select Kolab objects filtered by the given query
*
* @param array Pseudo-SQL query as list of filter parameter triplets
* @param boolean Set true to only return UIDs instead of complete objects
* @param boolean Use fast mode to fetch only minimal set of information
* (no xml fetching and parsing, etc.)
*
* @return array List of Kolab data objects (each represented as hash array) or UIDs
*/
public function select($query = array(), $uids = false, $fast = false)
{
// modify query for IMAP search: query param 'type' is actually a subtype
if (!$this->ready) {
foreach ($query as $i => $tuple) {
if ($tuple[0] == 'type') {
$tuple[2] = 'configuration.' . $tuple[2];
$query[$i] = $tuple;
}
}
}
return parent::select($query, $uids, $fast);
}
/**
* Helper method to compose a valid SQL query from pseudo filter triplets
*/
protected function _sql_where($query)
{
if (is_array($query)) {
foreach ($query as $idx => $param) {
// convert category filter
if ($param[0] == 'category') {
$param[2] = array_map(function($n) { return 'category:' . $n; }, (array) $param[2]);
$query[$idx][0] = 'tags';
$query[$idx][2] = count($param[2]) > 1 ? $param[2] : $param[2][0];
}
// convert member filter (we support only = operator with single value)
else if ($param[0] == 'member') {
$query[$idx][0] = 'words';
$query[$idx][1] = '~';
$query[$idx][2] = '^' . $param[2] . '$';
}
}
}
return parent::_sql_where($query);
}
/**
* Set $data_props property depending on object type
*/
protected function set_data_props($type)
{
switch ($type) {
case 'dictionary':
$this->data_props = array('language', 'e');
break;
case 'file_driver':
$this->data_props = array('driver', 'title', 'enabled', 'host', 'port', 'username', 'password');
break;
case 'relation':
// Note: Because relations are heavily used, for performance reasons
// we store all properties for them
$this->data_props = array('name', 'category', 'color', 'parent', 'iconName', 'priority', 'members');
break;
case 'snippet':
$this->data_props = array('name');
break;
case 'category':
default:
// TODO: implement this
$this->data_props = array();
}
}
}

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