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20170320.reviewers.03.migrate.php
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20170320.reviewers.03.migrate.php
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<?php
$table = new DifferentialRevision();
$diff_table = new DifferentialDiff();
$reviewer_table = new DifferentialReviewer();
$table_name = PhabricatorEdgeConfig::TABLE_NAME_EDGE;
$data_name = PhabricatorEdgeConfig::TABLE_NAME_EDGEDATA;
$conn = $table->establishConnection('w');
// Previously "DifferentialRevisionHasReviewerEdgeType::EDGECONST".
$edge_type = 35;
// NOTE: We can't use normal migration iterators for edges because they don't
// have an "id" column. For now, try just loading the whole result set: the
// actual size of the rows is small. If we run into issues, we could write an
// EdgeIterator.
$every_edge = queryfx_all(
$conn,
'SELECT * FROM %T edge LEFT JOIN %T data ON edge.dataID = data.id
WHERE edge.type = %d',
$table_name,
$data_name,
$edge_type);
foreach ($every_edge as $edge) {
if ($edge['type'] != $edge_type) {
// Ignore edges which aren't "reviewers", like subscribers.
continue;
}
try {
$data = phutil_json_decode($edge['data']);
$data = idx($data, 'data');
} catch (Exception $ex) {
// Just ignore any kind of issue with the edge data, we'll use a default
// below.
$data = null;
}
if (!$data) {
$data = array(
'status' => 'added',
);
}
$status = idx($data, 'status');
$diff_phid = null;
// NOTE: At one point, the code to populate "diffID" worked correctly, but
// it seems to have later been broken. Salvage it if we can, and look up
// the corresponding diff PHID.
$diff_id = idx($data, 'diffID');
if ($diff_id) {
$row = queryfx_one(
$conn,
'SELECT phid FROM %T WHERE id = %d',
$diff_table->getTableName(),
$diff_id);
if ($row) {
$diff_phid = $row['phid'];
}
}
if (!$diff_phid) {
// If the status is "accepted" or "rejected", look up the current diff
// PHID so we can distinguish between "accepted" and "accepted older".
switch ($status) {
case 'accepted':
case 'rejected':
case 'commented':
$row = queryfx_one(
$conn,
'SELECT diff.phid FROM %T diff JOIN %T revision
ON diff.revisionID = revision.id
WHERE revision.phid = %s
ORDER BY diff.id DESC LIMIT 1',
$diff_table->getTableName(),
$table->getTableName(),
$edge['src']);
if ($row) {
$diff_phid = $row['phid'];
}
break;
}
}
// We now represent some states (like "Commented" and "Accepted Older") as
// a primary state plus an extra flag, instead of making "Commented" a
// primary state. Map old states to new states and flags.
if ($status == 'commented') {
$status = 'added';
$comment_phid = $diff_phid;
$action_phid = null;
} else {
$comment_phid = null;
$action_phid = $diff_phid;
}
if ($status == 'accepted-older') {
$status = 'accepted';
}
if ($status == 'rejected-older') {
$status = 'rejected';
}
queryfx(
$conn,
'INSERT INTO %T (revisionPHID, reviewerPHID, reviewerStatus,
lastActionDiffPHID, lastCommentDiffPHID, dateCreated, dateModified)
VALUES (%s, %s, %s, %ns, %ns, %d, %d)
ON DUPLICATE KEY UPDATE dateCreated = VALUES(dateCreated)',
$reviewer_table->getTableName(),
$edge['src'],
$edge['dst'],
$status,
$action_phid,
$comment_phid,
$edge['dateCreated'],
$edge['dateCreated']);
}

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