mirror of
https://github.com/EGroupware/egroupware.git
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200 lines
5.6 KiB
PHP
200 lines
5.6 KiB
PHP
<?php
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/***************************************************************************\
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* eGroupWare - content history class *
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* http://www.egroupware.org *
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* Written by : Lars Kneschke [lkneschke@linux-at-work.de] *
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* ------------------------------------------------- *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License. *
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\***************************************************************************/
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/* $Id$ */
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/**
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* class to maintain history of content
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*
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* This class contains all logic of the egw content history.
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* @package phpgwapi
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* @author Lars Kneschke
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* @version 1.35
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* @copyright Lars Kneschke 2005
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* @license http://opensource.org/licenses/gpl-license.php GPL
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*/
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class contenthistory
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{
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/**
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* @var db-object $this->db
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*/
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var $db;
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function contenthistory()
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{
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$this->db = clone($GLOBALS['egw']->db);
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$this->db->set_app('phpgwapi');
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$this->table = 'egw_api_content_history';
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}
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/**
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* mark mapping as expired
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*
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* mark a mapping from externel to internal id as expired, when
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* a egw entry gets deleted
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*
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* @param $_appName string the appname example: infolog_notes
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* @param $_id int the internal egwapp content id
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* @return bool
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*/
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function expireMapping($_appName, $_id)
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{
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$where = array (
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'map_guid' => $GLOBALS['egw']->common->generate_uid($_appName, $_id),
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);
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$newData = array (
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'map_expired' => 1,
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);
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if(!$this->db->update('egw_contentmap',$newData,$where,__LINE__,__FILE__))
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return FALSE;
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else
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return TRUE;
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}
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/**
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* get the timestamp for action
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*
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* find which content changed since $_ts for application $_appName
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*
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* @param $_appName string the appname example: infolog_notes
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* @param $_action string can be modify, add or delete
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* @param $_ts string timestamp where to start searching from
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* @return array containing the global UID's
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*/
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function getHistory($_appName, $_action, $_ts)
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{
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$query = "select sync_guid from egw_api_content_history where sync_appname = '".$this->db->db_addslashes($_appName)."' and ";
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switch($_action)
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{
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case 'modify':
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$query .= "sync_modified > '".$this->db->to_timestamp($_ts)."' and sync_deleted is null";
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break;
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case 'delete':
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$query .= "sync_deleted > '".$this->db->to_timestamp($_ts)."'";
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break;
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case 'add':
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$query .= "sync_added > '".$this->db->to_timestamp($_ts)."' and sync_deleted is null and sync_modified is null";
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break;
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default:
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// no valid $_action set
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return array();
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break;
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}
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#Horde::logMessage("SymcML: egwcontactssync $query", __FILE__, __LINE__, PEAR_LOG_DEBUG);
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$this->db->query($query, __LINE__, __FILE__);
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$guidList = array();
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while($this->db->next_record())
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{
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$guidList[] = $this->db->f('sync_guid');
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}
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return $guidList;
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}
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/**
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* when got a entry last added/modified/deleted
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*
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* @param $_guid string the global uid of the entry
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* @param $_action string can be add, delete or modify
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* @return string the last timestamp
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*/
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function getTSforAction($_guid, $_action)
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{
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$where = array (
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'sync_guid' => $_guid,
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);
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$this->db->select($this->table,array('sync_added','sync_modified','sync_deleted'),$where,__LINE__,__FILE__);
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if($this->db->next_record())
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{
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switch($_action)
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{
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case 'add':
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return $this->db->from_timestamp($this->db->f('sync_added'));
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break;
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case 'delete':
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return $this->db->from_timestamp($this->db->f('sync_deleted'));
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break;
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case 'modify':
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return $this->db->from_timestamp($this->db->f('sync_modified'));
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break;
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default:
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return false;
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}
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}
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return false;
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}
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/**
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* update a timestamp for action
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*
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* @param $_appName string the appname example: infolog_notes
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* @param $_id int the app internal content id
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* @param $_action string can be modify, add or delete
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* @param $_ts string timestamp where to start searching from
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* @return boolean returns allways true
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*/
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function updateTimeStamp($_appName, $_id, $_action, $_ts)
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{
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$_ts = $this->db->to_timestamp($_ts);
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$newData = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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'sync_added' => $_ts,
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'sync_guid' => $GLOBALS['egw']->common->generate_uid($_appName, $_id),
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'sync_changedby' => $GLOBALS['egw_info']['user']['account_id'],
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);
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switch($_action)
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{
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case 'add':
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$this->db->insert($this->table,$newData,array(),__LINE__,__FILE__);
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break;
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case 'modify':
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case 'delete':
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// first check that this entry got ever added to database already
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$where = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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);
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$this->db->select($this->table,'sync_contentid',$where,__LINE__,__FILE__);
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if(!$this->db->next_record())
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{
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$this->db->insert($this->table,$newData,array(),__LINE__,__FILE__);
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}
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#$this->db->select($this->table,'sync_added',$where,__LINE__,__FILE__);
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#$this->db->next_record();
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#$syncAdded = $this->db->f('sync_added');
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// now update the time stamp
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$newData = array (
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'sync_changedby' => $GLOBALS['egw_info']['user']['account_id'],
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$_action == 'modify' ? 'sync_modified' : 'sync_deleted' => $_ts ,
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# 'sync_added' => $syncAdded,
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);
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$this->db->update($this->table, $newData, $where,__LINE__,__FILE__);
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break;
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}
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return true;
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}
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}
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?>
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