private function performMerge(ManiphestTask $task, PhabricatorObjectHandle $handle, array $phids)
{
$user = $this->getRequest()->getUser();
$response = id(new AphrontReloadResponse())->setURI($handle->getURI());
$phids = array_fill_keys($phids, true);
unset($phids[$task->getPHID()]);
// Prevent merging a task into itself.
if (!$phids) {
return $response;
}
$targets = id(new ManiphestTaskQuery())->setViewer($user)->requireCapabilities(array(PhabricatorPolicyCapability::CAN_VIEW, PhabricatorPolicyCapability::CAN_EDIT))->withPHIDs(array_keys($phids))->needSubscriberPHIDs(true)->needProjectPHIDs(true)->execute();
if (empty($targets)) {
return $response;
}
$editor = id(new ManiphestTransactionEditor())->setActor($user)->setContentSourceFromRequest($this->getRequest())->setContinueOnNoEffect(true)->setContinueOnMissingFields(true);
$cc_vector = array();
// since we loaded this via a generic object query, go ahead and get the
// attach the subscriber and project phids now
$task->attachSubscriberPHIDs(PhabricatorSubscribersQuery::loadSubscribersForPHID($task->getPHID()));
$task->attachProjectPHIDs(PhabricatorEdgeQuery::loadDestinationPHIDs($task->getPHID(), PhabricatorProjectObjectHasProjectEdgeType::EDGECONST));
$cc_vector[] = $task->getSubscriberPHIDs();
foreach ($targets as $target) {
$cc_vector[] = $target->getSubscriberPHIDs();
$cc_vector[] = array($target->getAuthorPHID(), $target->getOwnerPHID());
$merged_into_txn = id(new ManiphestTransaction())->setTransactionType(ManiphestTransaction::TYPE_MERGED_INTO)->setNewValue($task->getPHID());
$editor->applyTransactions($target, array($merged_into_txn));
}
$all_ccs = array_mergev($cc_vector);
$all_ccs = array_filter($all_ccs);
$all_ccs = array_unique($all_ccs);
$add_ccs = id(new ManiphestTransaction())->setTransactionType(PhabricatorTransactions::TYPE_SUBSCRIBERS)->setNewValue(array('=' => $all_ccs));
$merged_from_txn = id(new ManiphestTransaction())->setTransactionType(ManiphestTransaction::TYPE_MERGED_FROM)->setNewValue(mpull($targets, 'getPHID'));
$editor->applyTransactions($task, array($add_ccs, $merged_from_txn));
return $response;
}
