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DifferentialRevisionVoidTransaction.php
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Mon, Jan 6, 10:42

DifferentialRevisionVoidTransaction.php
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<?php
/**
* This is an internal transaction type used to void reviews.
*
* For example, "Request Review" voids any open accepts, so they no longer
* act as current accepts.
*/
final class DifferentialRevisionVoidTransaction
extends DifferentialRevisionTransactionType {
const TRANSACTIONTYPE = 'differential.revision.void';
public function generateOldValue($object) {
return false;
}
public function generateNewValue($object, $value) {
$reviewers = id(new DifferentialReviewer())->loadAllWhere(
'revisionPHID = %s
AND voidedPHID IS NULL
AND reviewerStatus IN (%Ls)',
$object->getPHID(),
$value);
$must_downgrade = $this->getMetadataValue('void.force', array());
$must_downgrade = array_fuse($must_downgrade);
$default = PhabricatorEnv::getEnvConfig('differential.sticky-accept');
foreach ($reviewers as $key => $reviewer) {
$status = $reviewer->getReviewerStatus();
// If this void is forced, always downgrade. For example, this happens
// when an author chooses "Request Review": existing reviews are always
// voided, even if they're sticky.
if (isset($must_downgrade[$status])) {
continue;
}
// Otherwise, if this is a sticky accept, don't void it. Accepts may be
// explicitly sticky or unsticky, or they'll use the default value if
// no value is specified.
$is_sticky = $reviewer->getOption('sticky');
$is_sticky = coalesce($is_sticky, $default);
if ($status === DifferentialReviewerStatus::STATUS_ACCEPTED) {
if ($is_sticky) {
unset($reviewers[$key]);
continue;
}
}
}
return mpull($reviewers, 'getReviewerPHID');
}
public function getTransactionHasEffect($object, $old, $new) {
return (bool)$new;
}
public function applyExternalEffects($object, $value) {
$table = new DifferentialReviewer();
$table_name = $table->getTableName();
$conn = $table->establishConnection('w');
queryfx(
$conn,
'UPDATE %T SET voidedPHID = %s
WHERE revisionPHID = %s
AND voidedPHID IS NULL
AND reviewerPHID IN (%Ls)',
$table_name,
$this->getActingAsPHID(),
$object->getPHID(),
$value);
}
public function shouldHide() {
// This is an internal transaction, so don't show it in feeds or
// transaction logs.
return true;
}
private function getVoidableStatuses() {
return array(
DifferentialReviewerStatus::STATUS_ACCEPTED,
DifferentialReviewerStatus::STATUS_REJECTED,
);
}
}

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