forked from extern/egroupware
add class to handle history of content inside egw
This commit is contained in:
Lars Kneschke
parent
ffc98ddd1f
commit
0b846885ee
208
phpgwapi/inc/class.contenthistory.inc.php
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208
phpgwapi/inc/class.contenthistory.inc.php
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@ -0,0 +1,208 @@
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<?php
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/***************************************************************************\
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* eGroupWare - content history class *
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* http://www.linux-at-work.de *
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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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#function contenthistory()
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#{
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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, $_ts)
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{
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copyobj($GLOBALS['phpgw']->db,$db);
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$query = "select sync_guid from egw_api_content_history where sync_appname = '".$db->db_addslashes($_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 > '".$db->to_timestamp($_ts)."' and sync_modified > sync_deleted";
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break;
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case 'delete':
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$query .= "sync_deleted > '".$db->to_timestamp($_ts)."'";
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break;
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case 'add':
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$query .= "sync_added > '".$db->to_timestamp($_ts)."' and sync_added > sync_deleted";
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break;
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default:
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// no valid $_action set
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return array();
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break;
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}
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$db->query($query, __LINE__, __FILE__);
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if($db->num_rows() > 0)
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{
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while($db->next_record())
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{
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$guidList[] = $db->f('sync_guid');
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}
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return $guidList;
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}
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else
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{
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return array();
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}
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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, $_action)
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{
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copyobj($GLOBALS['phpgw']->db,$db);
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$where = array (
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'sync_guid' => $_guid,
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);
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$db->select('egw_api_content_history',array('sync_added','sync_modified','sync_deleted'),$where,__LINE__,__FILE__);
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if($db->num_rows() > 0)
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{
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$db->next_record();
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switch($_action)
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{
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case 'add':
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return $db->from_timestamp($db->f('sync_added'));
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break;
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case 'delete':
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return $db->from_timestamp($db->f('sync_deleted'));
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break;
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case 'modify':
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return $db->from_timestamp($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, $_ts)
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{
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copyobj($GLOBALS['phpgw']->db,$db);
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$_ts = $db->to_timestamp($_ts);
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switch($_action)
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{
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case 'add':
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$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' => $GLOBALS['phpgw']->common->generate_uid($_appName, $_id),
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'sync_changedby' => $GLOBALS['phpgw_info']['user']['account_id'],
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);
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$db->insert('egw_api_content_history',$newData,array(),__LINE__,__FILE__);
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break;
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case 'modify':
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$where = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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);
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// first check that this entry got ever added to database already
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$db->select('egw_api_content_history','sync_contentid',$where,__LINE__,__FILE__);
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if($db->num_rows() == 0)
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{
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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' => $GLOBALS['phpgw']->common->generate_uid($_appName, $_id),
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);
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$db->insert('egw_api_content_history',$newData,array(),__LINE__,__FILE__);
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}
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// now update the time stamp
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$newData = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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'sync_modified' => $_ts,
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'sync_changedby' => $GLOBALS['phpgw_info']['user']['account_id'],
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);
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$db->update('egw_api_content_history', $newData, $where,__LINE__,__FILE__);
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break;
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case 'delete':
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$where = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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);
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// first check that this entry got ever added to database already
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$db->select('egw_api_content_history','sync_contentid',$where,__LINE__,__FILE__);
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if($db->num_rows() == 0)
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{
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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' => $GLOBALS['phpgw']->common->generate_uid($_appName, $_id),
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);
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$db->insert('egw_api_content_history',$newData,array(),__LINE__,__FILE__);
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}
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// now update the time stamp
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$newData = array (
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'sync_appname' => $_appName,
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'sync_contentid' => $_id,
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'sync_deleted' => $_ts,
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'sync_changedby' => $GLOBALS['phpgw_info']['user']['account_id'],
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);
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$db->update('egw_api_content_history', $newData, $where,__LINE__,__FILE__);
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break;
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}
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return true;
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}
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}
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?>
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@ -240,6 +240,7 @@
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$GLOBALS['phpgw']->session = CreateObject('phpgwapi.sessions',$domain_names);
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$GLOBALS['phpgw']->preferences = CreateObject('phpgwapi.preferences');
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$GLOBALS['phpgw']->applications = CreateObject('phpgwapi.applications');
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$GLOBALS['phpgw']->contenthistory = CreateObject('phpgwapi.contenthistory');
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print_debug('main class loaded', 'messageonly','api');
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if (! isset($GLOBALS['phpgw_info']['flags']['included_classes']['error']) ||
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! $GLOBALS['phpgw_info']['flags']['included_classes']['error'])
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