<?php

/*
 * Copyright 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

$table = new DifferentialRevision();
$conn_w = $table->establishConnection('w');

$revisions = id(new DifferentialRevision())->loadAll();

echo "Migrating ".count($revisions)." revisions";
foreach ($revisions as $revision) {
  echo ".";

  $diff = $revision->loadActiveDiff();
  if (!$diff) {
    continue;
  }

  $branch_name = $diff->getBranch();
  $arc_project_phid = $diff->getArcanistProjectPHID();

  queryfx(
    $conn_w,
    'UPDATE %T SET branchName = %s, arcanistProjectPHID = %s WHERE id = %d',
    $table->getTableName(),
    $branch_name,
    $arc_project_phid,
    $revision->getID());
}
echo "\nDone.\n";

<?php

/*
 * Copyright 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

$table = new DifferentialRevision();
$conn_w = $table->establishConnection('w');

echo "Migrating revisions";
do {
  $revisions = id(new DifferentialRevision())
    ->loadAllWhere('branchName IS NULL LIMIT 1000');

  foreach ($revisions as $revision) {
    echo ".";

    $diff = $revision->loadActiveDiff();
    if (!$diff) {
      continue;
    }

    $branch_name = $diff->getBranch();
    $arc_project_phid = $diff->getArcanistProjectPHID();

    queryfx(
      $conn_w,
      'UPDATE %T SET branchName = %s, arcanistProjectPHID = %s WHERE id = %d',
      $table->getTableName(),
      $branch_name,
      $arc_project_phid,
      $revision->getID());
  }
} while (count($revisions) == 1000);
echo "\nDone.\n";

Fix patch 131 for db with lots of revisions
Fix patch 131 for db with lots of revisions

Summary:
The old version of this loads all differential revisions at once, but that much
can't all be loaded into memory when there are close to 500,000 revisions. This
diff splits up loading the revisions.

Test Plan: Ran this to run the migration in our install

Reviewers: jungejason, epriestley

Reviewed By: epriestley

CC: aran

Differential Revision: https://secure.phabricator.com/D2243
