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AlmanacNetworkNameTransaction.php
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			<?php

			final class AlmanacNetworkNameTransaction
			extends AlmanacNetworkTransactionType {

			const TRANSACTIONTYPE = 'almanac:network:name';

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

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

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

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

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

			if ($this->isEmptyTextTransaction($object->getName(), $xactions)) {
			$errors[] = $this->newRequiredError(
			pht('Network name is required.'));
			}

			foreach ($xactions as $xaction) {
			$name = $xaction->getNewValue();

			$message = null;
			try {
			AlmanacNames::validateName($name);
			} catch (Exception $ex) {
			$message = $ex->getMessage();
			}

			if ($message !== null) {
			$errors[] = $this->newInvalidError($message, $xaction);
			continue;
			}

			if ($name === $object->getName()) {
			continue;
			}

			$other = id(new AlmanacNetworkQuery())
			->setViewer(PhabricatorUser::getOmnipotentUser())
			->withNames(array($name))
			->executeOne();
			if ($other && ($other->getID() != $object->getID())) {
			$errors[] = $this->newInvalidError(
			pht('Almanac networks must have unique names.'),
			$xaction);
			continue;
			}
			}

			return $errors;
			}

			}