src/applications/differential/xaction/DifferentialRevisionVoidTransaction.php

   1 <?php
   2
   3 /**
   4  * This is an internal transaction type used to void reviews.
   5  *
   6  * For example, "Request Review" voids any open accepts, so they no longer
   7  * act as current accepts.
   8  */
   9 final class DifferentialRevisionVoidTransaction
  10   extends DifferentialRevisionTransactionType {
  11
  12   const TRANSACTIONTYPE = 'differential.revision.void';
  13
  14   public function generateOldValue($object) {
  15     return false;
  16   }
  17
  18   public function generateNewValue($object, $value) {
  19     $reviewers = id(new DifferentialReviewer())->loadAllWhere(
  20       'revisionPHID = %s
  21         AND voidedPHID IS NULL
  22         AND reviewerStatus IN (%Ls)',
  23       $object->getPHID(),
  24       $value);
  25
  26     $must_downgrade = $this->getMetadataValue('void.force', array());
  27     $must_downgrade = array_fuse($must_downgrade);
  28
  29     $default = PhabricatorEnv::getEnvConfig('differential.sticky-accept');
  30     foreach ($reviewers as $key => $reviewer) {
  31       $status = $reviewer->getReviewerStatus();
  32
  33       // If this void is forced, always downgrade. For example, this happens
  34       // when an author chooses "Request Review": existing reviews are always
  35       // voided, even if they're sticky.
  36       if (isset($must_downgrade[$status])) {
  37         continue;
  38       }
  39
  40       // Otherwise, if this is a sticky accept, don't void it. Accepts may be
  41       // explicitly sticky or unsticky, or they'll use the default value if
  42       // no value is specified.
  43       $is_sticky = $reviewer->getOption('sticky');
  44       $is_sticky = coalesce($is_sticky, $default);
  45
  46       if ($status === DifferentialReviewerStatus::STATUS_ACCEPTED) {
  47         if ($is_sticky) {
  48           unset($reviewers[$key]);
  49           continue;
  50         }
  51       }
  52     }
  53
  54
  55     return mpull($reviewers, 'getReviewerPHID');
  56   }
  57
  58   public function getTransactionHasEffect($object, $old, $new) {
  59     return (bool)$new;
  60   }
  61
  62   public function applyExternalEffects($object, $value) {
  63     $table = new DifferentialReviewer();
  64     $table_name = $table->getTableName();
  65     $conn = $table->establishConnection('w');
  66
  67     queryfx(
  68       $conn,
  69       'UPDATE %T SET voidedPHID = %s
  70         WHERE revisionPHID = %s
  71           AND voidedPHID IS NULL
  72           AND reviewerPHID IN (%Ls)',
  73       $table_name,
  74       $this->getActingAsPHID(),
  75       $object->getPHID(),
  76       $value);
  77   }
  78
  79   public function shouldHide() {
  80     // This is an internal transaction, so don't show it in feeds or
  81     // transaction logs.
  82     return true;
  83   }
  84
  85   private function getVoidableStatuses() {
  86     return array(
  87       DifferentialReviewerStatus::STATUS_ACCEPTED,
  88       DifferentialReviewerStatus::STATUS_REJECTED,
  89     );
  90   }
  91
  92 }