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 $response;
}
private function buildTransactions($actions, ManiphestTask $task)
{
$value_map = array();
$type_map = array('add_comment' => PhabricatorTransactions::TYPE_COMMENT, 'assign' => ManiphestTransaction::TYPE_OWNER, 'status' => ManiphestTransaction::TYPE_STATUS, 'priority' => ManiphestTransaction::TYPE_PRIORITY, 'add_project' => PhabricatorTransactions::TYPE_EDGE, 'remove_project' => PhabricatorTransactions::TYPE_EDGE, 'add_ccs' => PhabricatorTransactions::TYPE_SUBSCRIBERS, 'remove_ccs' => PhabricatorTransactions::TYPE_SUBSCRIBERS);
$edge_edit_types = array('add_project' => true, 'remove_project' => true, 'add_ccs' => true, 'remove_ccs' => true);
$xactions = array();
foreach ($actions as $action) {
if (empty($type_map[$action['action']])) {
throw new Exception("Unknown batch edit action '{$action}'!");
}
$type = $type_map[$action['action']];
// Figure out the current value, possibly after modifications by other
// batch actions of the same type. For example, if the user chooses to
// "Add Comment" twice, we should add both comments. More notably, if the
// user chooses "Remove Project..." and also "Add Project...", we should
// avoid restoring the removed project in the second transaction.
if (array_key_exists($type, $value_map)) {
$current = $value_map[$type];
} else {
switch ($type) {
case PhabricatorTransactions::TYPE_COMMENT:
$current = null;
break;
case ManiphestTransaction::TYPE_OWNER:
$current = $task->getOwnerPHID();
break;
case ManiphestTransaction::TYPE_STATUS:
$current = $task->getStatus();
break;
case ManiphestTransaction::TYPE_PRIORITY:
$current = $task->getPriority();
break;
case PhabricatorTransactions::TYPE_EDGE:
$current = $task->getProjectPHIDs();
break;
case PhabricatorTransactions::TYPE_SUBSCRIBERS:
$current = $task->getSubscriberPHIDs();
break;
}
}
// Check if the value is meaningful / provided, and normalize it if
// necessary. This discards, e.g., empty comments and empty owner
// changes.
$value = $action['value'];
switch ($type) {
case PhabricatorTransactions::TYPE_COMMENT:
if (!strlen($value)) {
continue 2;
}
break;
case ManiphestTransaction::TYPE_OWNER:
if (empty($value)) {
continue 2;
}
$value = head($value);
$no_owner = PhabricatorPeopleNoOwnerDatasource::FUNCTION_TOKEN;
if ($value === $no_owner) {
$value = null;
}
break;
case PhabricatorTransactions::TYPE_EDGE:
if (empty($value)) {
continue 2;
}
break;
case PhabricatorTransactions::TYPE_SUBSCRIBERS:
if (empty($value)) {
continue 2;
}
break;
}
// If the edit doesn't change anything, go to the next action. This
// check is only valid for changes like "owner", "status", etc, not
// for edge edits, because we should still apply an edit like
// "Remove Projects: A, B" to a task with projects "A, B".
if (empty($edge_edit_types[$action['action']])) {
if ($value == $current) {
continue;
}
}
// Apply the value change; for most edits this is just replacement, but
// some need to merge the current and edited values (add/remove project).
switch ($type) {
case PhabricatorTransactions::TYPE_COMMENT:
if (strlen($current)) {
$value = $current . "\n\n" . $value;
}
break;
case PhabricatorTransactions::TYPE_EDGE:
$is_remove = $action['action'] == 'remove_project';
$current = array_fill_keys($current, true);
$value = array_fill_keys($value, true);
$new = $current;
$did_something = false;
if ($is_remove) {
foreach ($value as $phid => $ignored) {
if (isset($new[$phid])) {
unset($new[$phid]);
$did_something = true;
}
}
} else {
foreach ($value as $phid => $ignored) {
if (empty($new[$phid])) {
$new[$phid] = true;
$did_something = true;
}
}
}
if (!$did_something) {
continue 2;
}
$value = array_keys($new);
break;
case PhabricatorTransactions::TYPE_SUBSCRIBERS:
$is_remove = $action['action'] == 'remove_ccs';
$current = array_fill_keys($current, true);
$new = array();
$did_something = false;
if ($is_remove) {
foreach ($value as $phid) {
if (isset($current[$phid])) {
$new[$phid] = true;
$did_something = true;
}
}
if ($new) {
$value = array('-' => array_keys($new));
}
} else {
$new = array();
foreach ($value as $phid) {
$new[$phid] = true;
$did_something = true;
}
if ($new) {
$value = array('+' => array_keys($new));
}
}
if (!$did_something) {
continue 2;
}
break;
}
$value_map[$type] = $value;
}
$template = new ManiphestTransaction();
foreach ($value_map as $type => $value) {
$xaction = clone $template;
$xaction->setTransactionType($type);
switch ($type) {
case PhabricatorTransactions::TYPE_COMMENT:
$xaction->attachComment(id(new ManiphestTransactionComment())->setContent($value));
break;
case PhabricatorTransactions::TYPE_EDGE:
$project_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
$xaction->setMetadataValue('edge:type', $project_type)->setNewValue(array('=' => array_fuse($value)));
break;
default:
$xaction->setNewValue($value);
break;
}
$xactions[] = $xaction;
}
return $xactions;
}
