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PhabricatorProjectEditor.php
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Sat, Nov 30, 01:16

PhabricatorProjectEditor.php
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<?php
final class PhabricatorProjectEditor extends PhabricatorEditor {
private $project;
private $projectName;
private $addEdges = array();
private $remEdges = array();
public static function applyJoinProject(
PhabricatorProject $project,
PhabricatorUser $user) {
$members = $project->getMemberPHIDs();
$members[] = $user->getPHID();
self::applyOneTransaction(
$project,
$user,
PhabricatorProjectTransactionType::TYPE_MEMBERS,
$members);
}
public static function applyLeaveProject(
PhabricatorProject $project,
PhabricatorUser $user) {
$members = array_fill_keys($project->getMemberPHIDs(), true);
unset($members[$user->getPHID()]);
$members = array_keys($members);
self::applyOneTransaction(
$project,
$user,
PhabricatorProjectTransactionType::TYPE_MEMBERS,
$members);
}
private static function applyOneTransaction(
PhabricatorProject $project,
PhabricatorUser $user,
$type,
$new_value) {
$xaction = new PhabricatorProjectTransaction();
$xaction->setTransactionType($type);
$xaction->setNewValue($new_value);
$editor = new PhabricatorProjectEditor($project);
$editor->setActor($user);
$editor->applyTransactions(array($xaction));
}
public function __construct(PhabricatorProject $project) {
$this->project = $project;
}
public function applyTransactions(array $transactions) {
assert_instances_of($transactions, 'PhabricatorProjectTransaction');
$actor = $this->requireActor();
$project = $this->project;
$is_new = !$project->getID();
if ($is_new) {
$project->setAuthorPHID($actor->getPHID());
}
foreach ($transactions as $key => $xaction) {
$this->setTransactionOldValue($project, $xaction);
if (!$this->transactionHasEffect($xaction)) {
unset($transactions[$key]);
continue;
}
}
if (!$is_new) {
// You must be able to view a project in order to edit it in any capacity.
PhabricatorPolicyFilter::requireCapability(
$actor,
$project,
PhabricatorPolicyCapability::CAN_VIEW);
$need_edit = false;
$need_join = false;
foreach ($transactions as $key => $xaction) {
if ($this->getTransactionRequiresEditCapability($xaction)) {
$need_edit = true;
}
if ($this->getTransactionRequiresJoinCapability($xaction)) {
$need_join = true;
}
}
if ($need_edit) {
PhabricatorPolicyFilter::requireCapability(
$actor,
$project,
PhabricatorPolicyCapability::CAN_EDIT);
}
if ($need_join) {
PhabricatorPolicyFilter::requireCapability(
$actor,
$project,
PhabricatorPolicyCapability::CAN_JOIN);
}
}
if (!$transactions) {
return $this;
}
foreach ($transactions as $xaction) {
$this->applyTransactionEffect($project, $xaction);
}
try {
$project->openTransaction();
$project->save();
$edge_type = PhabricatorEdgeConfig::TYPE_PROJ_MEMBER;
$editor = new PhabricatorEdgeEditor();
$editor->setActor($actor);
foreach ($this->remEdges as $phid) {
$editor->removeEdge($project->getPHID(), $edge_type, $phid);
}
foreach ($this->addEdges as $phid) {
$editor->addEdge($project->getPHID(), $edge_type, $phid);
}
$editor->save();
foreach ($transactions as $xaction) {
$xaction->setAuthorPHID($actor->getPHID());
$xaction->setProjectID($project->getID());
$xaction->save();
}
$project->saveTransaction();
foreach ($transactions as $xaction) {
$this->publishTransactionStory($project, $xaction);
}
} catch (AphrontQueryDuplicateKeyException $ex) {
// We already validated the slug, but might race. Try again to see if
// that's the issue. If it is, we'll throw a more specific exception. If
// not, throw the original exception.
$this->validateName($project);
throw $ex;
}
// TODO: If we rename a project, we should move its Phriction page. Do
// that once Phriction supports document moves.
return $this;
}
private function validateName(PhabricatorProject $project) {
$slug = $project->getPhrictionSlug();
$name = $project->getName();
if ($slug == '/') {
throw new PhabricatorProjectNameCollisionException(
pht("Project names must be unique and contain some ".
"letters or numbers."));
}
$id = $project->getID();
$collision = id(new PhabricatorProject())->loadOneWhere(
'(name = %s OR phrictionSlug = %s) AND id %Q %nd',
$name,
$slug,
$id ? '!=' : 'IS NOT',
$id ? $id : null);
if ($collision) {
$other_name = $collision->getName();
$other_id = $collision->getID();
throw new PhabricatorProjectNameCollisionException(
"Project names must be unique. The name '{$name}' is too similar to ".
"the name of another project, '{$other_name}' (Project ID: ".
"{$other_id}). Choose a unique name.");
}
}
private function setTransactionOldValue(
PhabricatorProject $project,
PhabricatorProjectTransaction $xaction) {
$type = $xaction->getTransactionType();
switch ($type) {
case PhabricatorProjectTransactionType::TYPE_NAME:
$xaction->setOldValue($project->getName());
break;
case PhabricatorProjectTransactionType::TYPE_STATUS:
$xaction->setOldValue($project->getStatus());
break;
case PhabricatorProjectTransactionType::TYPE_MEMBERS:
$member_phids = $project->loadMemberPHIDs();
$project->attachMemberPHIDs($member_phids);
$old_value = array_values($member_phids);
$xaction->setOldValue($old_value);
$new_value = $xaction->getNewValue();
$new_value = array_filter($new_value);
$new_value = array_unique($new_value);
$new_value = array_values($new_value);
$xaction->setNewValue($new_value);
break;
case PhabricatorProjectTransactionType::TYPE_CAN_VIEW:
$xaction->setOldValue($project->getViewPolicy());
break;
case PhabricatorProjectTransactionType::TYPE_CAN_EDIT:
$xaction->setOldValue($project->getEditPolicy());
break;
case PhabricatorProjectTransactionType::TYPE_CAN_JOIN:
$xaction->setOldValue($project->getJoinPolicy());
break;
default:
throw new Exception("Unknown transaction type '{$type}'!");
}
return $this;
}
private function applyTransactionEffect(
PhabricatorProject $project,
PhabricatorProjectTransaction $xaction) {
$type = $xaction->getTransactionType();
switch ($type) {
case PhabricatorProjectTransactionType::TYPE_NAME:
$project->setName($xaction->getNewValue());
$project->setPhrictionSlug($xaction->getNewValue());
$this->validateName($project);
break;
case PhabricatorProjectTransactionType::TYPE_STATUS:
$project->setStatus($xaction->getNewValue());
break;
case PhabricatorProjectTransactionType::TYPE_MEMBERS:
$old = array_fill_keys($xaction->getOldValue(), true);
$new = array_fill_keys($xaction->getNewValue(), true);
$this->addEdges = array_keys(array_diff_key($new, $old));
$this->remEdges = array_keys(array_diff_key($old, $new));
break;
case PhabricatorProjectTransactionType::TYPE_CAN_VIEW:
$project->setViewPolicy($xaction->getNewValue());
break;
case PhabricatorProjectTransactionType::TYPE_CAN_EDIT:
$project->setEditPolicy($xaction->getNewValue());
// You can't edit away your ability to edit the project.
PhabricatorPolicyFilter::mustRetainCapability(
$this->getActor(),
$project,
PhabricatorPolicyCapability::CAN_EDIT);
break;
case PhabricatorProjectTransactionType::TYPE_CAN_JOIN:
$project->setJoinPolicy($xaction->getNewValue());
break;
default:
throw new Exception("Unknown transaction type '{$type}'!");
}
}
private function publishTransactionStory(
PhabricatorProject $project,
PhabricatorProjectTransaction $xaction) {
$related_phids = array(
$project->getPHID(),
$xaction->getAuthorPHID(),
);
id(new PhabricatorFeedStoryPublisher())
->setStoryType(PhabricatorFeedStoryTypeConstants::STORY_PROJECT)
->setStoryData(
array(
'projectPHID' => $project->getPHID(),
'transactionID' => $xaction->getID(),
'type' => $xaction->getTransactionType(),
'old' => $xaction->getOldValue(),
'new' => $xaction->getNewValue(),
))
->setStoryTime(time())
->setStoryAuthorPHID($xaction->getAuthorPHID())
->setRelatedPHIDs($related_phids)
->publish();
}
private function transactionHasEffect(
PhabricatorProjectTransaction $xaction) {
return ($xaction->getOldValue() !== $xaction->getNewValue());
}
/**
* All transactions except joining or leaving a project require edit
* capability.
*/
private function getTransactionRequiresEditCapability(
PhabricatorProjectTransaction $xaction) {
return ($this->isJoinOrLeaveTransaction($xaction) === null);
}
/**
* Joining a project requires the join capability. Anyone leave a project.
*/
private function getTransactionRequiresJoinCapability(
PhabricatorProjectTransaction $xaction) {
$type = $this->isJoinOrLeaveTransaction($xaction);
return ($type == 'join');
}
/**
* Returns 'join' if this transaction causes the acting user ONLY to join the
* project.
*
* Returns 'leave' if this transaction causes the acting user ONLY to leave
* the project.
*
* Returns null in all other cases.
*/
private function isJoinOrLeaveTransaction(
PhabricatorProjectTransaction $xaction) {
$type = $xaction->getTransactionType();
if ($type != PhabricatorProjectTransactionType::TYPE_MEMBERS) {
return null;
}
switch ($type) {
case PhabricatorProjectTransactionType::TYPE_MEMBERS:
$old = $xaction->getOldValue();
$new = $xaction->getNewValue();
$add = array_diff($new, $old);
$rem = array_diff($old, $new);
if (count($add) > 1) {
return null;
} else if (count($add) == 1) {
if (reset($add) != $this->getActor()->getPHID()) {
return null;
} else {
return 'join';
}
}
if (count($rem) > 1) {
return null;
} else if (count($rem) == 1) {
if (reset($rem) != $this->getActor()->getPHID()) {
return null;
} else {
return 'leave';
}
}
break;
}
return true;
}
}

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