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phorge/resources/sql/autopatches/20170915.ref.01.migrate.php
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20170915.ref.01.migrate.php
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<?php
$table = new PhabricatorRepositoryRefCursor();
$conn = $table->establishConnection('w');
$map = array();
foreach (new LiskMigrationIterator($table) as $ref) {
$repository_phid = $ref->getRepositoryPHID();
$ref_type = $ref->getRefType();
$ref_hash = $ref->getRefNameHash();
$ref_key = "{$repository_phid}/{$ref_type}/{$ref_hash}";
if (!isset($map[$ref_key])) {
$map[$ref_key] = array(
'id' => $ref->getID(),
'type' => $ref_type,
'hash' => $ref_hash,
'repositoryPHID' => $repository_phid,
'positions' => array(),
);
}
// NOTE: When this migration runs, the table will have "commitIdentifier" and
// "isClosed" fields. Later, it won't. Since they'll be removed, we can't
// rely on being able to access them via the object. Instead, run a separate
// raw query to read them.
$row = queryfx_one(
$conn,
'SELECT commitIdentifier, isClosed FROM %T WHERE id = %d',
$ref->getTableName(),
$ref->getID());
$map[$ref_key]['positions'][] = array(
'identifier' => $row['commitIdentifier'],
'isClosed' => (int)$row['isClosed'],
);
}
// Now, write all the position rows.
$position_table = new PhabricatorRepositoryRefPosition();
foreach ($map as $ref_key => $spec) {
$id = $spec['id'];
foreach ($spec['positions'] as $position) {
queryfx(
$conn,
'INSERT IGNORE INTO %T (cursorID, commitIdentifier, isClosed)
VALUES (%d, %s, %d)',
$position_table->getTableName(),
$id,
$position['identifier'],
$position['isClosed']);
}
}
// Finally, delete all the redundant RefCursor rows (rows with the same name)
// so we can add proper unique keys in the next migration.
foreach ($map as $ref_key => $spec) {
queryfx(
$conn,
'DELETE FROM %T WHERE refType = %s
AND refNameHash = %s
AND repositoryPHID = %s
AND id != %d',
$table->getTableName(),
$spec['type'],
$spec['hash'],
$spec['repositoryPHID'],
$spec['id']);
}

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