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scheduled_task_eh.php
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Tue, Sep 23, 5:25 AM

scheduled_task_eh.php
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<?php
/**
* @version $Id: scheduled_task_eh.php 15810 2013-06-25 14:19:21Z alex $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/
defined('FULL_PATH') or die('restricted access!');
class ScheduledTaskEventHandler extends kDBEventHandler {
/**
* Allows to override standard permission mapping
*
* @return void
* @access protected
* @see kEventHandler::$permMapping
*/
protected function mapPermissions()
{
parent::mapPermissions();
$permissions = Array (
'OnMassCancel' => Array ('self' => 'add|edit'),
'OnRun' => Array ('self' => 'add|edit'),
);
$this->permMapping = array_merge($this->permMapping, $permissions);
}
/**
* Does custom validation
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeItemValidate(kEvent $event)
{
parent::OnBeforeItemValidate($event);
$object = $event->getObject();
/* @var $object kDBItem */
$event_string = $object->GetDBField('Event');
if ( !$event_string ) {
return;
}
try {
$this->Application->eventImplemented(new kEvent($event_string));
}
catch (Exception $e) {
$object->SetError('Event', 'invalid_event', '+' . $e->getMessage());
}
}
/**
* [HOOK] Refreshes scheduled task list in database based on cached data from unit configs
*
* @param kEvent $event
*/
function OnRefresh($event)
{
$scheduled_tasks_from_cache = $this->Application->EventManager->getScheduledTasks(true);
$object = $event->getObject( Array ('skip_autoload' => true) );
/* @var $object kDBItem */
$processed_ids = Array ();
$scheduled_tasks_from_db = $this->Conn->Query($object->GetSelectSQL(), 'Name');
$cron_helper = $this->Application->recallObject('kCronHelper');
/* @var $cron_helper kCronHelper */
foreach ($scheduled_tasks_from_cache as $scheduled_task_name => $scheduled_task_params) {
if ( !isset($scheduled_tasks_from_db[$scheduled_task_name]) ) {
$fields_hash = Array (
'Event' => $scheduled_task_params['Event'],
'Name' => $scheduled_task_name,
'Type' => ScheduledTask::TYPE_SYSTEM,
'Status' => isset($scheduled_task_params['Status']) ? $scheduled_task_params['Status'] : STATUS_ACTIVE,
'RunSchedule' => $scheduled_task_params['RunSchedule'],
);
$object->Clear();
$object->SetDBFieldsFromHash($fields_hash);
$cron_helper->load($object, 'RunSchedule');
$object->Create();
}
else {
$object->LoadFromHash( $scheduled_tasks_from_db[$scheduled_task_name] );
}
$processed_ids[] = $object->GetID();
}
// delete all non-processed scheduled tasks (ones, that were deleted from unit configs)
$sql = 'SELECT ' . $object->IDField . '
FROM ' . $object->TableName . '
WHERE (Type = ' . ScheduledTask::TYPE_SYSTEM . ') AND (' . $object->IDField . ' NOT IN (' . implode(',', $processed_ids) . '))';
$delete_ids = $this->Conn->GetCol($sql);
if ($delete_ids) {
$temp_handler = $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler', Array ('parent_event' => $event));
/* @var $temp_handler kTempTablesHandler */
$temp_handler->DeleteItems($event->Prefix, $event->Special, $delete_ids);
}
$this->Application->removeObject($event->getPrefixSpecial());
}
/**
* Don't allow to delete other user's messages
*
* @param kEvent $event
* @param string $type
* @return void
* @access protected
*/
protected function customProcessing(kEvent $event, $type)
{
if ( $event->Name == 'OnMassDelete' && $type == 'before' ) {
if ( $this->Application->isDebugMode() ) {
// allow to delete system scheduled tasks in debug mode
return;
}
$ids = $event->getEventParam('ids');
if ( $ids ) {
$config = $event->getUnitConfig();
$id_field = $config->getIDField();
$sql = 'SELECT ' . $id_field . '
FROM ' . $config->getTableName() . '
WHERE ' . $id_field . ' IN (' . implode(',', $ids) . ') AND Type <> ' . ScheduledTask::TYPE_SYSTEM;
$event->setEventParam('ids', $this->Conn->GetCol($sql));
}
}
}
/**
* Cancels scheduled tasks, that are currently running
*
* @param kEvent $event
*/
function OnMassCancel($event)
{
$ids = $this->StoreSelectedIDs($event);
if ($ids) {
$object = $event->getObject( Array ('skip_autoload' => true) );
/* @var $object kDBItem */
foreach ($ids as $id) {
$object->Load($id);
if ($object->GetDBField('LastRunStatus') == ScheduledTask::LAST_RUN_RUNNING) {
// only changes status, doesn't affect currency running scheduled tasks
$object->SetDBField('LastRunStatus', ScheduledTask::LAST_RUN_FAILED);
$object->Update();
}
}
}
$this->clearSelectedIDs($event);
}
/**
* Runs selected scheduled tasks
*
* @param kEvent $event
*/
function OnRun($event)
{
$ids = $this->StoreSelectedIDs($event);
if ($ids) {
$object = $event->getObject( Array ('skip_autoload' => true) );
/* @var $object kDBItem */
$where_clause = Array (
$object->TableName . '.' . $object->IDField . ' IN (' . implode(',', $ids) . ')',
$object->TableName . '.Status = ' . STATUS_ACTIVE,
$object->TableName . '.LastRunStatus <> ' . ScheduledTask::LAST_RUN_RUNNING,
);
$sql = $object->GetSelectSQL() . '
WHERE (' . implode(') AND (', $where_clause) . ')';
$scheduled_tasks = $this->Conn->Query($sql);
foreach ($scheduled_tasks as $scheduled_task_data) {
$this->Application->EventManager->runScheduledTask($scheduled_task_data);
}
}
$this->clearSelectedIDs($event);
}
/**
* Loads schedule from database to virtual fields
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnAfterItemLoad(kEvent $event)
{
parent::OnAfterItemLoad($event);
$object = $event->getObject();
/* @var $object kDBItem */
$cron_helper = $this->Application->recallObject('kCronHelper');
/* @var $cron_helper kCronHelper */
$cron_helper->load($object, 'RunSchedule');
}
/**
* Validates schedule
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeItemCreate(kEvent $event)
{
parent::OnBeforeItemCreate($event);
$this->_itemChanged($event);
}
/**
* Validates schedule
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeItemUpdate(kEvent $event)
{
parent::OnBeforeItemUpdate($event);
$this->_itemChanged($event);
}
/**
* Validates schedule
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function _itemChanged(kEvent $event)
{
$object = $event->getObject();
/* @var $object kDBItem */
$cron_helper = $this->Application->recallObject('kCronHelper');
/* @var $cron_helper kCronHelper */
if ( $cron_helper->validateAndSave($object, 'RunSchedule') && !$object->GetDBField('NextRunOn_date') ) {
$next_run = $cron_helper->getMatch($object->GetDBField('RunSchedule'));
$object->SetDBField('NextRunOn_date', $next_run);
$object->SetDBField('NextRunOn_time', $next_run);
}
}
/**
* Creates schedule fields
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnAfterConfigRead(kEvent $event)
{
parent::OnAfterConfigRead($event);
$cron_helper = $this->Application->recallObject('kCronHelper');
/* @var $cron_helper kCronHelper */
$cron_helper->initUnit($event->Prefix, 'RunSchedule');
}
}

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