20140420.rel.2.objectmig.php
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	<?php

	$pull_table = new ReleephRequest();
	$table_name = $pull_table->getTableName();
	$conn_w = $pull_table->establishConnection('w');

	echo pht('Setting object PHIDs for requests...')."\n";
	foreach (new LiskMigrationIterator($pull_table) as $pull) {
	$id = $pull->getID();

	echo pht('Migrating pull request %d...', $id)."\n";
	if ($pull->getRequestedObjectPHID()) {
	// We already have a valid PHID, so skip this request.
	continue;
	}

	$commit_phids = $pull->getCommitPHIDs();
	if (count($commit_phids) != 1) {
	// At the time this migration was written, all requests had exactly one
	// commit. If a request has more than one, we don't have the information
	// we need to process it.
	continue;
	}

	$commit_phid = head($commit_phids);

	$revision_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
	$commit_phid,
	DiffusionCommitHasRevisionEdgeType::EDGECONST);

	if ($revision_phids) {
	$object_phid = head($revision_phids);
	} else {
	$object_phid = $commit_phid;
	}

	queryfx(
	$conn_w,
	'UPDATE %T SET requestedObjectPHID = %s WHERE id = %d',
	$table_name,
	$object_phid,
	$id);
	}

	echo pht('Done.')."\n";