PhabricatorSpacesNamespaceDefaultTransaction.php
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	<?php

	final class PhabricatorSpacesNamespaceDefaultTransaction
	extends PhabricatorSpacesNamespaceTransactionType {

	const TRANSACTIONTYPE = 'spaces:default';

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

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

	public function getTitle() {
	return pht(
	'%s made this the default space.',
	$this->renderAuthor());
	}

	public function getTitleForFeed() {
	return pht(
	'%s made space %s the default space.',
	$this->renderAuthor(),
	$this->renderObject());

	}

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

	if (!$this->isNewObject()) {
	foreach ($xactions as $xaction) {
	$errors[] = $this->newInvalidError(
	pht('Only the first space created can be the default space, and '.
	'it must remain the default space evermore.'));
	}
	}

	return $errors;
	}

	}