ManiphestTaskTitleTransaction.php
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	<?php

	final class ManiphestTaskTitleTransaction
	extends ManiphestTaskTransactionType {

	const TRANSACTIONTYPE = 'title';

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

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

	public function getActionStrength() {
	return 1.4;
	}

	public function getActionName() {
	$old = $this->getOldValue();

	if (!strlen($old)) {
	return pht('Created');
	}

	return pht('Retitled');
	}

	public function getTitle() {
	$old = $this->getOldValue();

	if (!strlen($old)) {
	return pht(
	'%s created this task.',
	$this->renderAuthor());
	}

	return pht(
	'%s renamed this task from %s to %s.',
	$this->renderAuthor(),
	$this->renderOldValue(),
	$this->renderNewValue());

	}

	public function getTitleForFeed() {
	$old = $this->getOldValue();
	if ($old === null) {
	return pht(
	'%s created %s.',
	$this->renderAuthor(),
	$this->renderObject());
	}

	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->getTitle(), $xactions)) {
	$errors[] = $this->newRequiredError(
	pht('Tasks must have a title.'));
	}

	return $errors;
	}

	}