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phab/src/applications/differential/xaction/DifferentialRevisionReviewTransaction.php
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DifferentialRevisionReviewTransaction.php
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<?php
abstract class DifferentialRevisionReviewTransaction
extends DifferentialRevisionActionTransaction {
protected function getRevisionActionGroupKey() {
return DifferentialRevisionEditEngine::ACTIONGROUP_REVIEW;
}
public function generateNewValue($object, $value) {
if (!is_array($value)) {
return true;
}
// If the list of options is the same as the default list, just treat this
// as a "take the default action" transaction.
$viewer = $this->getActor();
list($options, $default) = $this->getActionOptions($viewer, $object);
// Remove reviewers which aren't actionable. In the case of "Accept", we
// may allow the transaction to proceed with some reviewers who have
// already accepted, to avoid race conditions where two reviewers fill
// out the form at the same time and accept on behalf of the same package.
// It's okay for these reviewers to survive validation, but they should
// not survive beyond this point.
$value = array_fuse($value);
$value = array_intersect($value, array_keys($options));
$value = array_values($value);
sort($default);
sort($value);
if ($default === $value) {
return true;
}
return $value;
}
protected function isViewerAnyReviewer(
DifferentialRevision $revision,
PhabricatorUser $viewer) {
return ($this->getViewerReviewerStatus($revision, $viewer) !== null);
}
protected function isViewerAnyAuthority(
DifferentialRevision $revision,
PhabricatorUser $viewer) {
$reviewers = $revision->getReviewers();
foreach ($revision->getReviewers() as $reviewer) {
if ($reviewer->hasAuthority($viewer)) {
return true;
}
}
return false;
}
protected function isViewerFullyAccepted(
DifferentialRevision $revision,
PhabricatorUser $viewer) {
return $this->isViewerReviewerStatusFully(
$revision,
$viewer,
DifferentialReviewerStatus::STATUS_ACCEPTED);
}
protected function isViewerFullyRejected(
DifferentialRevision $revision,
PhabricatorUser $viewer) {
return $this->isViewerReviewerStatusFully(
$revision,
$viewer,
DifferentialReviewerStatus::STATUS_REJECTED);
}
protected function getViewerReviewerStatus(
DifferentialRevision $revision,
PhabricatorUser $viewer) {
if (!$viewer->getPHID()) {
return null;
}
foreach ($revision->getReviewers() as $reviewer) {
if ($reviewer->getReviewerPHID() != $viewer->getPHID()) {
continue;
}
return $reviewer->getReviewerStatus();
}
return null;
}
private function isViewerReviewerStatusFully(
DifferentialRevision $revision,
PhabricatorUser $viewer,
$require_status) {
// If the user themselves is not a reviewer, the reviews they have
// authority over can not all be in any set of states since their own
// personal review has no state.
$status = $this->getViewerReviewerStatus($revision, $viewer);
if ($status === null) {
return false;
}
$active_phid = $this->getActiveDiffPHID($revision);
$status_accepted = DifferentialReviewerStatus::STATUS_ACCEPTED;
$status_rejected = DifferentialReviewerStatus::STATUS_REJECTED;
$is_accepted = ($require_status == $status_accepted);
$is_rejected = ($require_status == $status_rejected);
// Otherwise, check that all reviews they have authority over are in
// the desired set of states.
foreach ($revision->getReviewers() as $reviewer) {
if (!$reviewer->hasAuthority($viewer)) {
$can_force = false;
if ($is_accepted) {
if ($revision->canReviewerForceAccept($viewer, $reviewer)) {
$can_force = true;
}
}
if (!$can_force) {
continue;
}
}
$status = $reviewer->getReviewerStatus();
if ($status != $require_status) {
return false;
}
// Here, we're primarily testing if we can remove a void on the review.
if ($is_accepted) {
if (!$reviewer->isAccepted($active_phid)) {
return false;
}
}
if ($is_rejected) {
if (!$reviewer->isRejected($active_phid)) {
return false;
}
}
// This is a broader check to see if we can update the diff where the
// last action occurred.
if ($reviewer->getLastActionDiffPHID() != $active_phid) {
return false;
}
if ($require_current) {
if ($reviewer->getLastActionDiffPHID() != $active_phid) {
return false;
}
}
}
return true;
}
protected function applyReviewerEffect(
DifferentialRevision $revision,
PhabricatorUser $viewer,
$value,
$status) {
$map = array();
// When you accept or reject, you may accept or reject on behalf of all
// reviewers you have authority for. When you resign, you only affect
// yourself.
$with_authority = ($status != DifferentialReviewerStatus::STATUS_RESIGNED);
$with_force = ($status == DifferentialReviewerStatus::STATUS_ACCEPTED);
if ($with_authority) {
foreach ($revision->getReviewers() as $reviewer) {
if (!$reviewer->hasAuthority($viewer)) {
if (!$with_force) {
continue;
}
if (!$revision->canReviewerForceAccept($viewer, $reviewer)) {
continue;
}
}
$map[$reviewer->getReviewerPHID()] = $status;
}
}
// In all cases, you affect yourself.
$map[$viewer->getPHID()] = $status;
// If we're applying an "accept the defaults" transaction, and this
// transaction type uses checkboxes, replace the value with the list of
// defaults.
if (!is_array($value)) {
list($options, $default) = $this->getActionOptions($viewer, $revision);
if ($options) {
$value = $default;
}
}
// If we have a specific list of reviewers to act on, usually because the
// user has submitted a specific list of reviewers to act as by
// unchecking some checkboxes under "Accept", only affect those reviewers.
if (is_array($value)) {
$map = array_select_keys($map, $value);
}
// Convert reviewer statuses into edge data.
foreach ($map as $reviewer_phid => $reviewer_status) {
$map[$reviewer_phid] = array(
'data' => array(
'status' => $reviewer_status,
),
);
}
// This is currently double-writing: to the old (edge) store and the new
// (reviewer) store. Do the old edge write first.
$src_phid = $revision->getPHID();
$edge_type = DifferentialRevisionHasReviewerEdgeType::EDGECONST;
$editor = new PhabricatorEdgeEditor();
foreach ($map as $dst_phid => $edge_data) {
if ($status == DifferentialReviewerStatus::STATUS_RESIGNED) {
// TODO: For now, we just remove these reviewers. In the future, we will
// store resignations explicitly.
$editor->removeEdge($src_phid, $edge_type, $dst_phid);
} else {
$editor->addEdge($src_phid, $edge_type, $dst_phid, $edge_data);
}
}
$editor->save();
// Now, do the new write.
if ($map) {
$diff = $this->getEditor()->getActiveDiff($revision);
if ($diff) {
$diff_phid = $diff->getPHID();
} else {
$diff_phid = null;
}
$table = new DifferentialReviewer();
$reviewers = $table->loadAllWhere(
'revisionPHID = %s AND reviewerPHID IN (%Ls)',
$src_phid,
array_keys($map));
$reviewers = mpull($reviewers, null, 'getReviewerPHID');
foreach ($map as $dst_phid => $edge_data) {
$reviewer = idx($reviewers, $dst_phid);
if (!$reviewer) {
$reviewer = id(new DifferentialReviewer())
->setRevisionPHID($src_phid)
->setReviewerPHID($dst_phid);
}
$old_status = $reviewer->getReviewerStatus();
$reviewer->setReviewerStatus($status);
if ($diff_phid) {
$reviewer->setLastActionDiffPHID($diff_phid);
}
if ($old_status !== $status) {
$reviewer->setLastActorPHID($this->getActingAsPHID());
}
// Clear any outstanding void on this reviewer. A void may be placed
// by the author using "Request Review" when a reviewer has already
// accepted.
$reviewer->setVoidedPHID(null);
try {
$reviewer->save();
} catch (AphrontDuplicateKeyQueryException $ex) {
// At least for now, just ignore it if we lost a race.
}
}
}
}
}
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