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egroupware/phpgwapi/inc/class.historylog.inc.php

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<?php
/**
* API - Record history logging
*
* @link http://www.egroupware.org
* @author Joseph Engo <jengo@phpgroupware.org>
* @copyright 2001 by Joseph Engo <jengo@phpgroupware.org>
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de> new DB-methods and search
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage db
* @access public
* @version $Id$
*/
/**
* Record history logging service
*
* This class need to be instanciated for EACH app, which wishes to use it!
*/
class historylog
{
/**
* Reference to the global db object
*
* @var egw_db
*/
var $db;
const TABLE = 'egw_history_log';
/**
* App.name this class is instanciated for / working on
*
* @var string
*/
var $appname;
/**
* offset in secconds between user and server-time,
* it need to be add to a server-time to get the user-time or substracted from a user-time to get the server-time
*
* @var int
*/
var $tz_offset_s;
var $user;
var $template;
var $nextmatchs;
var $types = array(
'C' => 'Created',
'D' => 'Deleted',
'E' => 'Edited'
);
var $alternate_handlers = array();
/**
* Constructor
*
* @param string $appname app name this instance operates on
* @return historylog
*/
function historylog($appname='',$user=null)
{
$this->appname = $appname ? $appname : $GLOBALS['egw_info']['flags']['currentapp'];
$this->user = !is_null($user) ? $user : $GLOBALS['egw_info']['user']['account_id'];
if (is_object($GLOBALS['egw_setup']->db))
{
$this->db = $GLOBALS['egw_setup']->db;
}
else
{
$this->db = $GLOBALS['egw']->db;
}
$this->tz_offset_s = $GLOBALS['egw']->datetime->tz_offset;
}
/**
* Delete the history-log of one or multiple records of $this->appname
*
* @param int/array $record_id one or more id's of $this->appname, or null to delete ALL records of $this->appname
* @return int number of deleted records/rows (0 is not necessaryly an error, it can just mean there's no record!)
*/
function delete($record_id)
{
$where = array('history_appname' => $this->appname);
if (is_array($record_id) || is_numeric($record_id))
{
$where['history_record_id'] = $record_id;
}
$this->db->delete(self::TABLE,$where,__LINE__,__FILE__);
return $this->db->affected_rows();
}
/**
* Add a history record, if $new_value != $old_value
*
* @param string $status 2 letter code: eg. $this->types: C=Created, D=Deleted, E=Edited
* @param int $record_id it of the record in $this->appname (set by the constructor)
* @param string $new_value new value
* @param string $old_value old value
*/
function add($status,$record_id,$new_value,$old_value)
{
if ($new_value != $old_value)
{
$this->db->insert(self::TABLE,array(
'history_record_id' => $record_id,
'history_appname' => $this->appname,
'history_owner' => $this->user,
'history_status' => $status,
'history_new_value' => $new_value,
'history_old_value' => $old_value,
'history_timestamp' => time(),
'sessionid' => $GLOBALS['egw']->session->sessionid_access_log,
),false,__LINE__,__FILE__);
}
}
/**
* Static function to add a history record
*/
public static function static_add($appname, $id, $user, $field_code, $new_value, $old_value = '')
{
if ($new_value != $old_value)
{
$GLOBALS['egw']->db->insert(self::TABLE,array(
'history_record_id' => $id,
'history_appname' => $appname,
'history_owner' => (int)$user,
'history_status' => $field_code,
'history_new_value' => $new_value,
'history_old_value' => $old_value,
'history_timestamp' => time(),
'sessionid' => $GLOBALS['egw']->session->sessionid_access_log,
),false,__LINE__,__FILE__);
}
}
/**
* Search history-log
*
* @param array/int $filter array with filters, or int record_id
* @param string $order='history_id' sorting after history_id is identical to history_timestamp
* @param string $sort='DESC'
* @param int $limit=null only return this many entries
* @return array of arrays with keys id, record_id, appname, owner (account_id), status, new_value, old_value,
* timestamp (Y-m-d H:i:s in servertime), user_ts (timestamp in user-time)
*/
function search($filter,$order='history_id',$sort='DESC',$limit=null)
{
if (!is_array($filter)) $filter = is_numeric($filter) ? array('history_record_id' => $filter) : array();
if (!$order || !preg_match('/^[a-z0-9_]+$/i',$order) || !preg_match('/^(asc|desc)?$/i',$sort))
{
$orderby = 'ORDER BY history_id DESC';
}
else
{
$orderby = "ORDER BY $order $sort";
}
foreach($filter as $col => $value)
{
if (!is_numeric($col) && substr($col,0,8) != 'history_')
{
$filter['history_'.$col] = $value;
unset($filter[$col]);
}
}
if (!isset($filter['history_appname'])) $filter['history_appname'] = $this->appname;
// do not try to read all history entries of an app
if (!$filter['history_record_id']) return array();
$rows = array();
foreach($this->db->select(self::TABLE, '*', $filter, __LINE__, __FILE__,
isset($limit) ? 0 : false, $orderby, 'phpgwapi', $limit) as $row)
{
$row['user_ts'] = $this->db->from_timestamp($row['history_timestamp']) + 3600 * $GLOBALS['egw_info']['user']['preferences']['common']['tz_offset'];
$rows[] = egw_db::strip_array_keys($row,'history_');
}
return $rows;
}
/**
* Get a slice of history records
*
* Similar to search(), except this one can take a start and a number of records
*/
public static function get_rows(&$query, &$rows) {
$filter = array();
$rows = array();
$filter['history_appname'] = $query['appname'];
$filter['history_record_id'] = $query['record_id'];
if(is_array($query['colfilter'])) {
foreach($query['colfilter'] as $column => $value) {
$filter[$column] = $value;
}
}
if ($GLOBALS['egw']->db->Type == 'mysql' && $GLOBALS['egw']->db->ServerInfo['version'] >= 4.0)
{
$mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ';
}
else
{
$total = $GLOBALS['egw']->db->select(self::TABLE,'COUNT(*)',$filter,__LINE__,__FILE__,false,'','phpgwapi',0)->fetchColumn();
}
$_query = array(array(
'table' => self::TABLE,
'cols' => array('history_id', 'history_record_id','history_appname','history_owner','history_status','history_new_value', 'history_timestamp','history_old_value'),
'where' => $filter,
));
// Add in files, if possible
if($GLOBALS['egw_info']['user']['apps']['filemanager'] &&
$file = sqlfs_stream_wrapper::url_stat("/apps/{$query['appname']}/{$query['record_id']}",STREAM_URL_STAT_LINK))
{
$_query[] = array(
'table' => sqlfs_stream_wrapper::TABLE,
'cols' =>array('fs_id', 'fs_dir', '"filemanager"','COALESCE(fs_modifier,fs_creator)','"~file~"','fs_name','fs_modified', '""'),
'where' => array('fs_dir' => $file['ino'])
);
}
$new_file_id = array();
foreach($GLOBALS['egw']->db->union(
$_query,
__LINE__, __FILE__,
' ORDER BY ' . ($query['order'] ? $query['order'] : 'history_timestamp') . ' ' . ($query['sort'] ? $query['sort'] : 'DESC'),
$query['start'],
$query['num_rows']
) as $row) {
$row['user_ts'] = $GLOBALS['egw']->db->from_timestamp($row['history_timestamp']) + 3600 * $GLOBALS['egw_info']['user']['preferences']['common']['tz_offset'];
// Get information needed for proper display
if($row['history_appname'] == 'filemanager')
{
$new_version = $new_file_id[$row['history_new_value']];
$new_file_id[$row['history_new_value']] = count($rows);
$path = sqlfs_stream_wrapper::id2path($row['history_id']);
// Apparently we don't have to do anything with it, just ask...
// without this, previous versions are not handled properly
egw_vfs::getExtraInfo($path);
$row['history_new_value'] = array(
'path' => $path,
'name' => basename($path)
);
if($new_version !== null)
{
$rows[$new_version]['old_value'] = $row['history_new_value'];
}
}
$rows[] = egw_db::strip_array_keys($row,'history_');
}
if ($mysql_calc_rows)
{
$total = $GLOBALS['egw']->db->query('SELECT FOUND_ROWS()')->fetchColumn();
}
return $total;
}
/**
* return history-log for one record of $this->appname
*
* @deprecated use search
* @param array $filter_out stati to NOT show
* @param array $only_show stati to show
* @param string $_orderby column name to order, default history_timestamp,history_id
* @param string $sort ASC,DESC
* @param int $record_id id of the record in $this->appname (set by the constructor)
* @return array of arrays with keys id, record_id, owner (account_lid!), status, new_value, old_value, datetime (timestamp in servertime)
*/
function return_array($filter_out,$only_show,$_orderby,$sort, $record_id)
{
if (!is_numeric($record_id))
{
return array();
}
if (!$_orderby || !preg_match('/^[a-z0-9_]+$/i',$_orderby) || !preg_match('/^(asc|desc)?$/i',$sort))
{
$orderby = 'ORDER BY history_timestamp,history_id';
}
else
{
$orderby = "ORDER BY $_orderby $sort";
}
$where = array(
'history_appname' => $this->appname,
'history_record_id' => $record_id,
);
if (is_array($filter_out))
{
foreach($filter_out as $_filter)
{
$where[] = 'history_status != '.$this->db->quote($_filter);
}
}
if (is_array($only_show) && count($only_show))
{
$to_or = array();
foreach($only_show as $_filter)
{
$to_or[] = 'history_status = '.$this->db->quote($_filter);
}
$where[] = '('.implode(' OR ',$to_or).')';
}
foreach($this->db->select(self::TABLE,'*',$where,__LINE__,__FILE__,false,$orderby) as $row)
{
$return_values[] = array(
'id' => $row['history_id'],
'record_id' => $row['history_record_id'],
'owner' => $row['history_owner'] ? $GLOBALS['egw']->accounts->id2name($row['history_owner']) : lang('eGroupWare'),
'status' => str_replace(' ','',$row['history_status']),
'new_value' => $row['history_new_value'],
'old_value' => $row['history_old_value'],
'datetime' => $this->db->from_timestamp($row['history_timestamp']),
);
}
return $return_values;
}
/**
* Creates html to show the history-log of one record
*
* @deprecated use eg. the historylog_widget of eTemplate or your own UI
* @param array $filter_out see stati to NOT show
* @param string $orderby column-name to order by
* @param string $sort ASC, DESC
* @param int $record_id id of the record in $this->appname (set by the constructor)
* @return string the html
*/
function return_html($filter_out,$orderby,$sort, $record_id)
{
$this->template =& CreateObject('phpgwapi.Template',EGW_TEMPLATE_DIR);
$this->nextmatchs =& CreateObject('phpgwapi.nextmatchs');
$this->template->set_file('_history','history_list.tpl');
$this->template->set_block('_history','row_no_history');
$this->template->set_block('_history','list');
$this->template->set_block('_history','row');
$this->template->set_var('lang_user',lang('User'));
$this->template->set_var('lang_date',lang('Date'));
$this->template->set_var('lang_action',lang('Action'));
$this->template->set_var('lang_new_value',lang('New Value'));
$this->template->set_var('th_bg',$GLOBALS['egw_info']['theme']['th_bg']);
$this->template->set_var('sort_date',lang('Date'));
$this->template->set_var('sort_owner',lang('User'));
$this->template->set_var('sort_status',lang('Status'));
$this->template->set_var('sort_new_value',lang('New value'));
$this->template->set_var('sort_old_value',lang('Old value'));
$values = $this->return_array($filter_out,array(),$orderby,$sort,$record_id);
if (!is_array($values))
{
$this->template->set_var('tr_color',$GLOBALS['egw_info']['theme']['row_off']);
$this->template->set_var('lang_no_history',lang('No history for this record'));
$this->template->fp('rows','row_no_history');
return $this->template->fp('out','list');
}
foreach($values as $value)
{
$this->nextmatchs->template_alternate_row_color($this->template);
$this->template->set_var('row_date',$GLOBALS['egw']->common->show_date($value['datetime']));
$this->template->set_var('row_owner',$value['owner']);
if ($this->alternate_handlers[$value['status']])
{
$this->template->set_var('row_new_value',
call_user_func($this->alternate_handlers[$value['status']], array($value['new_value'])));
$this->template->set_var('row_old_value',
call_user_func($this->alternate_handlers[$value['status']], array($value['old_value'])));
}
else
{
$this->template->set_var('row_new_value',$value['new_value']);
$this->template->set_var('row_old_value',$value['old_value']);
}
$this->template->set_var('row_status',$this->types[$value['status']]);
$this->template->fp('rows','row',True);
}
return $this->template->fp('out','list');
}
}
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