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<?php
namespace Kanboard\Model;
use DateInterval;
use DateTime;
/**
* Task Recurrence
*
* @package Kanboard\Model
* @author Frederic Guillot
*/
class TaskRecurrenceModel extends TaskDuplicationModel
{
/**
* Duplicate recurring task
*
* @access public
* @param integer $task_id Task id
* @return boolean|integer Recurrence task id
*/
public function duplicateRecurringTask($task_id)
{
$values = $this->copyFields($task_id);
if ($values['recurrence_status'] == TaskModel::RECURRING_STATUS_PENDING) {
$values['recurrence_parent'] = $task_id;
$values['column_id'] = $this->columnModel->getFirstColumnId($values['project_id']);
$this->calculateRecurringTaskDueDate($values);
$recurring_task_id = $this->save($task_id, $values);
if ($recurring_task_id > 0) {
$parent_update = $this->db
->table(TaskModel::TABLE)
->eq('id', $task_id)
->update(array(
'recurrence_status' => TaskModel::RECURRING_STATUS_PROCESSED,
'recurrence_child' => $recurring_task_id,
));
if ($parent_update) {
return $recurring_task_id;
}
}
}
return false;
}
/**
* Calculate new due date for new recurrence task
*
* @access public
* @param array $values Task fields
*/
public function calculateRecurringTaskDueDate(array &$values)
{
if (! empty($values['date_due']) && $values['recurrence_factor'] != 0) {
if ($values['recurrence_basedate'] == TaskModel::RECURRING_BASEDATE_TRIGGERDATE) {
$values['date_due'] = time();
}
$factor = abs($values['recurrence_factor']);
$subtract = $values['recurrence_factor'] < 0;
switch ($values['recurrence_timeframe']) {
case TaskModel::RECURRING_TIMEFRAME_MONTHS:
$interval = 'P' . $factor . 'M';
break;
case TaskModel::RECURRING_TIMEFRAME_YEARS:
$interval = 'P' . $factor . 'Y';
break;
default:
$interval = 'P' . $factor . 'D';
}
$date_due = new DateTime();
$date_due->setTimestamp($values['date_due']);
$subtract ? $date_due->sub(new DateInterval($interval)) : $date_due->add(new DateInterval($interval));
$values['date_due'] = $date_due->getTimestamp();
}
}
}
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