PhabricatorOwnersPackageNameTransaction.php
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	<?php

	final class PhabricatorOwnersPackageNameTransaction
	extends PhabricatorOwnersPackageTransactionType {

	const TRANSACTIONTYPE = 'owners.name';

	public function generateOldValue($object) {
	return $object->getName();
	}

	public function validateTransactions($object, array $xactions) {
	$errors = array();

	$missing = $this->isEmptyTextTransaction(
	$object->getName(),
	$xactions);

	if ($missing) {
	$errors[] = $this->newRequiredError(
	pht('Package name is required.'),
	nonempty(last($xactions), null));
	}

	foreach ($xactions as $xaction) {
	$new = $xaction->getNewValue();
	if (preg_match('([,!])', $new)) {
	$errors[] = $this->newInvalidError(
	pht(
	'Package names may not contain commas (",") or exclamation '.
	'marks ("!"). These characters are ambiguous when package '.
	'names are parsed from the command line.'),
	$xaction);
	}
	}

	return $errors;
	}

	public function applyInternalEffects($object, $value) {
	$object->setName($value);
	}

	public function getTitle() {
	return pht(
	'%s renamed this package from %s to %s.',
	$this->renderAuthor(),
	$this->renderOldValue(),
	$this->renderNewValue());
	}

	}