LegalpadDocumentRequireSignatureTransaction.php
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	<?php

	final class LegalpadDocumentRequireSignatureTransaction
	extends LegalpadDocumentTransactionType {

	const TRANSACTIONTYPE = 'legalpad:require-signature';

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

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

	public function applyExternalEffects($object, $value) {
	if ($value) {
	$session = new PhabricatorAuthSession();
	queryfx(
	$session->establishConnection('w'),
	'UPDATE %T SET signedLegalpadDocuments = 0',
	$session->getTableName());
	}
	}

	public function getTitle() {
	$new = $this->getNewValue();

	if ($new) {
	return pht(
	'%s set the document to require signatures.',
	$this->renderAuthor());
	} else {
	return pht(
	'%s set the document to not require signatures.',
	$this->renderAuthor());
	}
	}

	public function getTitleForFeed() {
	$new = $this->getNewValue();
	if ($new) {
	return pht(
	'%s set the document %s to require signatures.',
	$this->renderAuthor(),
	$this->renderObject());
	} else {
	return pht(
	'%s set the document %s to not require signatures.',
	$this->renderAuthor(),
	$this->renderObject());
	}
	}

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

	$is_admin = $this->getActor()->getIsAdmin();

	if (!$is_admin) {
	$errors[] = $this->newInvalidError(
	pht('Only admins may require signature.'));
	}

	return $errors;
	}

	public function getIcon() {
	return 'fa-pencil-square';
	}

	}