/**
* Revert all rows matching conditions to given date.
* Model rows outside condition or not edited will not be affected. Edits since date
* will be reverted and rows created since date deleted.
*
* @param object $Model
* @param array $options 'conditions','date'
* @return boolean success
*/
public function revertAll(Model $Model, $options = array())
{
if (!$Model->ShadowModel) {
trigger_error('RevisionBehavior: ShadowModel doesnt exist.', E_USER_WARNING);
return false;
}
if (empty($options) || !isset($options['date'])) {
return false;
}
if (!isset($options['conditions'])) {
$options['conditions'] = array();
}
// leave model rows out side of condtions alone
// leave model rows not edited since date alone
$all = $Model->find('all', array('conditions' => $options['conditions'], 'fields' => $Model->primaryKey));
$allIds = Set::extract($all, '/' . $Model->alias . '/' . $Model->primaryKey);
$cond = $options['conditions'];
$cond['version_created <'] = $options['date'];
$created_before_date = $Model->ShadowModel->find('all', array('order' => $Model->primaryKey, 'conditions' => $cond, 'fields' => array('version_id', $Model->primaryKey)));
$created_before_dateIds = Set::extract($created_before_date, '/' . $Model->alias . '/' . $Model->primaryKey);
$deleteIds = array_diff($allIds, $created_before_dateIds);
// delete all Model rows where there are only version_created later than date
$Model->deleteAll(array($Model->alias . '.' . $Model->primaryKey => $deleteIds), false, true);
unset($cond['version_created <']);
$cond['version_created >='] = $options['date'];
$created_after_date = $Model->ShadowModel->find('all', array('order' => $Model->primaryKey, 'conditions' => $cond, 'fields' => array('version_id', $Model->primaryKey)));
$created_after_dateIds = Set::extract($created_after_date, '/' . $Model->alias . '/' . $Model->primaryKey);
$updateIds = array_diff($created_after_dateIds, $deleteIds);
$revertSuccess = true;
// update model rows that have version_created earlier than date to latest before date
foreach ($updateIds as $mid) {
$Model->id = $mid;
if (!$Model->revertToDate($options['date'])) {
$revertSuccess = false;
}
}
return $revertSuccess;
}
