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phorge/src/applications/differential/xaction/DifferentialRevisionReviewersTransaction.php
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DifferentialRevisionReviewersTransaction.php
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<?php
final class DifferentialRevisionReviewersTransaction
extends DifferentialRevisionTransactionType {
const TRANSACTIONTYPE = 'differential.revision.reviewers';
const EDITKEY = 'reviewers';
public function generateOldValue($object) {
$reviewers = $object->getReviewers();
$reviewers = mpull($reviewers, 'getReviewerStatus', 'getReviewerPHID');
return $reviewers;
}
public function generateNewValue($object, $value) {
$actor = $this->getActor();
$datasource = id(new DifferentialBlockingReviewerDatasource())
->setViewer($actor);
$reviewers = $this->generateOldValue($object);
$old_reviewers = $reviewers;
// First, remove any reviewers we're getting rid of.
$rem = idx($value, '-', array());
$rem = $datasource->evaluateTokens($rem);
foreach ($rem as $spec) {
if (!is_array($spec)) {
$phid = $spec;
} else {
$phid = $spec['phid'];
}
unset($reviewers[$phid]);
}
$add = idx($value, '+', array());
$add = $datasource->evaluateTokens($add);
$add_map = array();
foreach ($add as $spec) {
if (!is_array($spec)) {
$phid = $spec;
$status = DifferentialReviewerStatus::STATUS_ADDED;
} else {
$phid = $spec['phid'];
$status = $spec['type'];
}
$add_map[$phid] = $status;
}
$set = idx($value, '=', null);
if ($set !== null) {
$set = $datasource->evaluateTokens($set);
foreach ($set as $spec) {
if (!is_array($spec)) {
$phid = $spec;
$status = DifferentialReviewerStatus::STATUS_ADDED;
} else {
$phid = $spec['phid'];
$status = $spec['type'];
}
$add_map[$phid] = $status;
}
// We treat setting reviewers as though they were being added to an
// empty list, so we can share more code between pathways.
$reviewers = array();
}
$status_blocking = DifferentialReviewerStatus::STATUS_BLOCKING;
foreach ($add_map as $phid => $new_status) {
$old_status = idx($old_reviewers, $phid);
// If we have an old status and this didn't make the reviewer blocking
// or nonblocking, just retain the old status. This makes sure we don't
// throw away rejects, accepts, etc.
if ($old_status) {
$was_blocking = ($old_status == $status_blocking);
$now_blocking = ($new_status == $status_blocking);
$is_block = ($now_blocking && !$was_blocking);
$is_unblock = (!$now_blocking && $was_blocking);
if (!$is_block && !$is_unblock) {
$reviewers[$phid] = $old_status;
continue;
}
}
$reviewers[$phid] = $new_status;
}
return $reviewers;
}
public function getTransactionHasEffect($object, $old, $new) {
// At least for now, we ignore transactions which ONLY reorder reviewers
// without making any actual changes.
ksort($old);
ksort($new);
return ($old !== $new);
}
public function applyExternalEffects($object, $value) {
$src_phid = $object->getPHID();
$old = $this->generateOldValue($object);
$new = $value;
$rem = array_diff_key($old, $new);
$table = new DifferentialReviewer();
$table_name = $table->getTableName();
$conn = $table->establishConnection('w');
if ($rem) {
queryfx(
$conn,
'DELETE FROM %T WHERE revisionPHID = %s AND reviewerPHID IN (%Ls)',
$table_name,
$src_phid,
array_keys($rem));
}
if ($new) {
$reviewers = $table->loadAllWhere(
'revisionPHID = %s AND reviewerPHID IN (%Ls)',
$src_phid,
array_keys($new));
$reviewers = mpull($reviewers, null, 'getReviewerPHID');
foreach ($new as $dst_phid => $status) {
$old_status = idx($old, $dst_phid);
if ($old_status === $status) {
continue;
}
$reviewer = idx($reviewers, $dst_phid);
if (!$reviewer) {
$reviewer = id(new DifferentialReviewer())
->setRevisionPHID($src_phid)
->setReviewerPHID($dst_phid);
}
$reviewer->setReviewerStatus($status);
try {
$reviewer->save();
} catch (AphrontDuplicateKeyQueryException $ex) {
// At least for now, just ignore it if we lost a race.
}
}
}
}
public function getTitle() {
return $this->renderReviewerEditTitle(false);
}
public function getTitleForFeed() {
return $this->renderReviewerEditTitle(true);
}
private function renderReviewerEditTitle($is_feed) {
$old = $this->getOldValue();
$new = $this->getNewValue();
$rem = array_diff_key($old, $new);
$add = array_diff_key($new, $old);
$rem_phids = array_keys($rem);
$add_phids = array_keys($add);
$total_count = count($rem) + count($add);
$parts = array();
if ($rem && $add) {
if ($is_feed) {
$parts[] = pht(
'%s edited %s reviewer(s) for %s, added %s: %s; removed %s: %s.',
$this->renderAuthor(),
new PhutilNumber($total_count),
$this->renderObject(),
phutil_count($add_phids),
$this->renderHandleList($add_phids),
phutil_count($rem_phids),
$this->renderHandleList($rem_phids));
} else {
$parts[] = pht(
'%s edited %s reviewer(s), added %s: %s; removed %s: %s.',
$this->renderAuthor(),
new PhutilNumber($total_count),
phutil_count($add_phids),
$this->renderHandleList($add_phids),
phutil_count($rem_phids),
$this->renderHandleList($rem_phids));
}
} else if ($add) {
if ($is_feed) {
$parts[] = pht(
'%s added %s reviewer(s) for %s: %s.',
$this->renderAuthor(),
phutil_count($add_phids),
$this->renderObject(),
$this->renderHandleList($add_phids));
} else {
$parts[] = pht(
'%s added %s reviewer(s): %s.',
$this->renderAuthor(),
phutil_count($add_phids),
$this->renderHandleList($add_phids));
}
} else if ($rem) {
if ($is_feed) {
$parts[] = pht(
'%s removed %s reviewer(s) for %s: %s.',
$this->renderAuthor(),
phutil_count($rem_phids),
$this->renderObject(),
$this->renderHandleList($rem_phids));
} else {
$parts[] = pht(
'%s removed %s reviewer(s): %s.',
$this->renderAuthor(),
phutil_count($rem_phids),
$this->renderHandleList($rem_phids));
}
}
$status_blocking = DifferentialReviewerStatus::STATUS_BLOCKING;
$blocks = array();
$unblocks = array();
foreach ($new as $phid => $new_status) {
$old_status = idx($old, $phid);
if (!$old_status) {
continue;
}
$was_blocking = ($old_status == $status_blocking);
$now_blocking = ($new_status == $status_blocking);
$is_block = ($now_blocking && !$was_blocking);
$is_unblock = (!$now_blocking && $was_blocking);
if ($is_block) {
$blocks[] = $phid;
}
if ($is_unblock) {
$unblocks[] = $phid;
}
}
$total_count = count($blocks) + count($unblocks);
if ($blocks && $unblocks) {
if ($is_feed) {
$parts[] = pht(
'%s changed %s blocking reviewer(s) for %s, added %s: %s; removed '.
'%s: %s.',
$this->renderAuthor(),
new PhutilNumber($total_count),
$this->renderObject(),
phutil_count($blocks),
$this->renderHandleList($blocks),
phutil_count($unblocks),
$this->renderHandleList($unblocks));
} else {
$parts[] = pht(
'%s changed %s blocking reviewer(s), added %s: %s; removed %s: %s.',
$this->renderAuthor(),
new PhutilNumber($total_count),
phutil_count($blocks),
$this->renderHandleList($blocks),
phutil_count($unblocks),
$this->renderHandleList($unblocks));
}
} else if ($blocks) {
if ($is_feed) {
$parts[] = pht(
'%s added %s blocking reviewer(s) for %s: %s.',
$this->renderAuthor(),
phutil_count($blocks),
$this->renderObject(),
$this->renderHandleList($blocks));
} else {
$parts[] = pht(
'%s added %s blocking reviewer(s): %s.',
$this->renderAuthor(),
phutil_count($blocks),
$this->renderHandleList($blocks));
}
} else if ($unblocks) {
if ($is_feed) {
$parts[] = pht(
'%s removed %s blocking reviewer(s) for %s: %s.',
$this->renderAuthor(),
phutil_count($unblocks),
$this->renderObject(),
$this->renderHandleList($unblocks));
} else {
$parts[] = pht(
'%s removed %s blocking reviewer(s): %s.',
$this->renderAuthor(),
phutil_count($unblocks),
$this->renderHandleList($unblocks));
}
}
if ($this->isTextMode()) {
return implode(' ', $parts);
} else {
return phutil_implode_html(' ', $parts);
}
}
public function validateTransactions($object, array $xactions) {
$actor = $this->getActor();
$errors = array();
if (!$xactions) {
// If we aren't applying new reviewer transactions, just bail. We need
// reviewers to be attached to the revision continue validation, and
// they won't always be (for example, when mentioning a revision).
return $errors;
}
$author_phid = $object->getAuthorPHID();
$config_self_accept_key = 'differential.allow-self-accept';
$allow_self_accept = PhabricatorEnv::getEnvConfig($config_self_accept_key);
$old = $this->generateOldValue($object);
foreach ($xactions as $xaction) {
$new = $this->generateNewValue($object, $xaction->getNewValue());
$add = array_diff_key($new, $old);
if (!$add) {
continue;
}
$objects = id(new PhabricatorObjectQuery())
->setViewer($actor)
->withPHIDs(array_keys($add))
->execute();
$objects = mpull($objects, null, 'getPHID');
foreach ($add as $phid => $status) {
if (!isset($objects[$phid])) {
$errors[] = $this->newInvalidError(
pht(
'Reviewer "%s" is not a valid object.',
$phid),
$xaction);
continue;
}
switch (phid_get_type($phid)) {
case PhabricatorPeopleUserPHIDType::TYPECONST:
case PhabricatorOwnersPackagePHIDType::TYPECONST:
case PhabricatorProjectProjectPHIDType::TYPECONST:
break;
default:
$errors[] = $this->newInvalidError(
pht(
'Reviewer "%s" must be a user, a package, or a project.',
$phid),
$xaction);
continue 2;
}
// NOTE: This weird behavior around commandeering is a bit unorthodox,
// but this restriction is an unusual one.
$is_self = ($phid === $author_phid);
if ($is_self && !$allow_self_accept) {
if (!$xaction->getIsCommandeerSideEffect()) {
$errors[] = $this->newInvalidError(
pht('The author of a revision can not be a reviewer.'),
$xaction);
continue;
}
}
}
}
return $errors;
}
public function getTransactionTypeForConduit($xaction) {
return 'reviewers';
}
public function getFieldValuesForConduit($xaction, $data) {
$old_value = $xaction->getOldValue();
$new_value = $xaction->getNewValue();
$status_blocking = DifferentialReviewerStatus::STATUS_BLOCKING;
$add_phids = array_diff_key($new_value, $old_value);
foreach ($add_phids as $add_phid => $value) {
$add_phids[$add_phid] = array(
'operation' => 'add',
'phid' => $add_phid,
'oldStatus' => null,
'newStatus' => $value,
'isBlocking' => ($value === $status_blocking),
);
}
$rem_phids = array_diff_key($old_value, $new_value);
foreach ($rem_phids as $rem_phid => $value) {
$rem_phids[$rem_phid] = array(
'operation' => 'remove',
'phid' => $rem_phid,
'oldStatus' => $value,
'newStatus' => null,
'isBlocking' => false,
);
}
$mod_phids = array_intersect_key($old_value, $new_value);
foreach ($mod_phids as $mod_phid => $ignored) {
$old = $old_value[$mod_phid];
$new = $new_value[$mod_phid];
if ($old === $new) {
unset($mod_phids[$mod_phid]);
continue;
}
$mod_phids[$mod_phid] = array(
'operation' => 'update',
'phid' => $mod_phid,
'oldStatus' => $old,
'newStatus' => $new,
'isBlocking' => ($new === $status_blocking),
);
}
$all_ops = $add_phids + $rem_phids + $mod_phids;
$all_ops = array_select_keys($all_ops, $new_value) + $all_ops;
$all_ops = array_values($all_ops);
return array(
'operations' => $all_ops,
);
}
}

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