egroupware/phpgwapi/inc/class.config.inc.php

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<?php
/**************************************************************************\
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* eGroupWare API - Application configuration in a centralized location *
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* This file written by Joseph Engo <jengo@phpgroupware.org> *
* Copyright (C) 2000, 2001 Joseph Engo *
* -------------------------------------------------------------------------*
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* This library is part of the eGroupWare API *
* http://www.egroupware.org/api *
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* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library 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 Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class config
{
var $db;
var $appname;
var $config_data; // actual config-data
var $read_data; // config-data as read from db
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function config($appname = '')
{
if (! $appname)
{
$appname = $GLOBALS['phpgw_info']['flags']['currentapp'];
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}
$this->db = is_object($GLOBALS['phpgw']->db) ? $GLOBALS['phpgw']->db : $GLOBALS['phpgw_setup']->db;
$this->db->set_app('phpgwapi');
$this->table = 'phpgw_config';
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$this->appname = $appname;
}
/*!
@function read_repository
@abstract reads the whole repository for $this->appname, appname has to be set via the constructor
@returns the whole config-array for that app
*/
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function read_repository()
{
$this->config_data = array();
$this->db->select($this->table,'*',array('config_app'=>$this->appname),__LINE__,__FILE__);
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while ($this->db->next_record())
{
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$test = @unserialize($this->db->f('config_value'));
if($test)
{
$this->config_data[$this->db->f('config_name')] = $test;
}
else
{
$this->config_data[$this->db->f('config_name')] = $this->db->f('config_value');
}
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}
return $this->read_data = $this->config_data;
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}
/*!
@function save_repository
@abstract updates the whole repository for $this->appname, you have to call read_repository() before (!)
*/
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function save_repository()
{
if (is_array($this->config_data))
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{
$this->db->lock(array('phpgw_config','phpgw_app_sessions'));
if($this->appname == 'phpgwapi')
{
$this->db->query("delete from phpgw_app_sessions where sessionid = '0' and loginid = '0' and app = '".$this->appname."' and location = 'config'",__LINE__,__FILE__);
}
foreach($this->config_data as $name => $value)
{
$this->save_value($name,$value);
}
foreach($this->read_data as $name => $value)
{
if (!isset($this->config_data[$name])) // has been deleted
{
$this->db->delete($this->table,array('config_app'=>$this->appname,'config_name'=>$name),__LINE__,__FILE__);
}
}
$this->db->unlock();
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}
$this->read_data = $this->config_data;
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}
/*!
@function save_value
@abstract updates or insert a single config-value
@param $name string name of the config-value
@param $value mixed content
@param $app string app-name, defaults to $this->appname set via the constructor
*/
function save_value($name,$value,$app=False)
{
//echo "<p>config::save_value('$name','".print_r($value,True)."','$app')</p>\n";
if (!$app || $app == $this->appname)
{
$app = $this->appname;
$this->config_data[$name] = $value;
}
if ($app == $this->appname && $this->read_data[$name] == $value)
{
return True; // no change ==> exit
}
//echo "<p>config::save_value('$name','".print_r($value,True)."','$app')</p>\n";
if(is_array($value))
{
$value = serialize($value);
}
return $this->db->insert($this->table,array('config_value'=>$value),array('config_app'=>$app,'config_name'=>$name),__LINE__,__FILE__);
}
/*!
@function delete_repository
@abstract deletes the whole repository for $this->appname, appname has to be set via the constructor
*/
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function delete_repository()
{
$this->db->delete("delete from phpgw_config where config_app='" . $this->appname . "'",__LINE__,__FILE__);
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}
/*!
@function delete_value
@abstract deletes a single value from the repository, you need to call save_repository after
@param $variable_name string name of the config
*/
function delete_value($variable_name)
{
unset($this->config_data[$variable_name]);
}
/*!
@function value
@abstract sets a single value in the repositry, you need to call save_repository after
@param $variable_name string name of the config
@param $variable_data mixed the content
*/
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function value($variable_name,$variable_data)
{
$this->config_data[$variable_name] = $variable_data;
}
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}
?>